;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2016 David Craven ;;; Copyright © 2016 Eric Le Bihan ;;; Copyright © 2016 Nikita ;;; Copyright © 2017 Ben Woodcroft ;;; Copyright © 2017, 2018 Nikolai Merinov ;;; Copyright © 2017, 2019-2023 Efraim Flashner ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice ;;; Copyright © 2018 Danny Milosavljevic ;;; Copyright © 2019 Ivan Petkov ;;; Copyright © 2020, 2021 Jakub Kądziołka ;;; Copyright © 2020 Pierre Langlois ;;; Copyright © 2020 Matthew James Kraai ;;; Copyright © 2021 Maxim Cournoyer ;;; Copyright © 2021 (unmatched parenthesis ;;; Copyright © 2022 Zheng Junjie <873216071@qq.com> ;;; Copyright © 2022 Jim Newsome ;;; Copyright © 2022 Mark H Weaver ;;; Copyright © 2023 Fries ;;; Copyright © 2023 Herman Rimm ;;; ;;; This file is part of GNU Guix. ;;; ;;; GNU Guix is free software; you can redistribute it and/or modify it ;;; under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 3 of the License, or (at ;;; your option) any later version. ;;; ;;; GNU Guix is distributed in the hope that it will be useful, but ;;; WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;;; GNU General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with GNU Guix. If not, see . (define-module (gnu packages rust) #:use-module (gnu packages base) #:use-module (gnu packages bison) #:use-module (gnu packages bootstrap) #:use-module (gnu packages cmake) #:use-module (gnu packages compression) #:use-module (gnu packages cross-base) #:use-module (gnu packages curl) #:use-module (gnu packages elf) #:use-module (gnu packages flex) #:use-module (gnu packages gcc) #:use-module (gnu packages gdb) #:use-module (gnu packages libunwind) #:use-module (gnu packages linux) #:use-module (gnu packages llvm) #:use-module (gnu packages mingw) #:use-module (gnu packages pkg-config) #:use-module (gnu packages python) #:use-module (gnu packages ssh) #:use-module (gnu packages tls) #:use-module (gnu packages) #:use-module (guix build-system cargo) #:use-module (guix build-system gnu) #:use-module (guix build-system trivial) #:use-module (guix download) #:use-module (guix memoization) #:use-module (guix git-download) #:use-module ((guix licenses) #:prefix license:) #:use-module (guix packages) #:use-module (guix platform) #:use-module ((guix build utils) #:select (alist-replace)) #:use-module (guix utils) #:use-module (guix gexp) #:use-module (ice-9 match) #:use-module (ice-9 optargs) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26)) ;; This is the hash for the empty file, and the reason it's relevant is not ;; the most obvious. ;; ;; The root of the problem is that Cargo keeps track of a file called ;; Cargo.lock, that contains the hash of the tarball source of each dependency. ;; ;; However, tarball sources aren't handled well by Guix because of the need to ;; patch shebangs in any helper scripts. This is why we use Cargo's vendoring ;; capabilities, where instead of the tarball, a directory is provided in its ;; place. (In the case of rustc, the source code already ships with vendored ;; dependencies, but crates built with cargo-build-system undergo vendoring ;; during the build.) ;; ;; To preserve the advantages of checksumming, vendored dependencies contain ;; a file called .cargo-checksum.json, which contains the hash of the tarball, ;; as well as the list of files in it, with the hash of each file. ;; ;; The patch-cargo-checksums phase of cargo-build-system runs after ;; any Guix-specific patches to the vendored dependencies and regenerates the ;; .cargo-checksum.json files, but it's hard to know the tarball checksum that ;; should be written to the file - and taking care of any unhandled edge case ;; would require rebuilding everything that depends on rust. This is why we lie, ;; and say that the tarball has the hash of an empty file. It's not a problem ;; because cargo-build-system removes the Cargo.lock file. We can't do that ;; for rustc because of a quirk of its build system, so we modify the lock file ;; to substitute the hash. (define %cargo-reference-hash "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855") (define* (rust-uri version #:key (dist "static")) (string-append "https://" dist ".rust-lang.org/dist/" "rustc-" version "-src.tar.gz")) (define* (rust-bootstrapped-package base-rust version checksum) "Bootstrap rust VERSION with source checksum CHECKSUM using BASE-RUST." (package (inherit base-rust) (version version) (source (origin (inherit (package-source base-rust)) (uri (rust-uri version)) (sha256 (base32 checksum)))) (native-inputs (alist-replace "cargo-bootstrap" (list base-rust "cargo") (alist-replace "rustc-bootstrap" (list base-rust) (package-native-inputs base-rust)))))) ;;; Note: mrustc's only purpose is to be able to bootstap Rust; it's designed ;;; to be used in source form. (define %mrustc-commit "597593aba86fa2edbea80c6e09f0b1b2a480722d") (define %mrustc-source (let* ((version "0.10") (commit %mrustc-commit) (revision "2") (name "mrustc")) (origin (method git-fetch) (uri (git-reference (url "https://github.com/thepowersgang/mrustc") (commit commit))) (file-name (git-file-name name (git-version version revision commit))) (sha256 (base32 "09rvm3zgx1d86gippl8qzh13m641ynbw9q0zsc90g0h1khd3z3b6")) (modules '((guix build utils))) (snippet '(begin ;; Drastically reduces memory and build time requirements ;; by disabling debug by default. (substitute* (find-files "." "Makefile") (("-g ") ""))))))) ;;; Rust 1.54 is special in that it is built with mrustc, which shortens the ;;; bootstrap path. (define-public rust-bootstrap (package (name "rust") (version "1.54.0") (source (origin (method url-fetch) (uri (rust-uri version)) (sha256 (base32 "0xk9dhfff16caambmwij67zgshd8v9djw6ha0fnnanlv7rii31dc")) (modules '((guix build utils))) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project")) ;; Remove vendored dynamically linked libraries. ;; find . -not -type d -executable -exec file {} \+ | grep ELF (delete-file "vendor/vte/vim10m_match") (delete-file "vendor/vte/vim10m_table") ;; Also remove the bundled (mostly Windows) libraries. ;; find vendor -not -type d -exec file {} \+ | grep PE32 (for-each delete-file (find-files "vendor" ".*\\.(a|dll|exe|lib)$")))) (patches (search-patches "rustc-1.54.0-src.patch")) (patch-flags '("-p0")))) ;default is -p1 (outputs '("out" "cargo")) (properties '((hidden? . #t) (timeout . 72000) ;20 hours (max-silent-time . 18000))) ;5 hours (for armel) (build-system gnu-build-system) (inputs `(("llvm" ,llvm-13) ("openssl" ,openssl-1.1) ("zlib" ,zlib))) (native-inputs `(("pkg-config" ,pkg-config) ;; Required for the libstd sources. ("mrustc-source" ,%mrustc-source))) (arguments `(#:imported-modules ,%cargo-utils-modules ;for `generate-all-checksums' #:modules ((guix build cargo-utils) (guix build utils) (guix build gnu-build-system)) #:test-target "test" ;; Rust's own .so library files are not found in any RUNPATH, but ;; that doesn't seem to cause issues. #:validate-runpath? #f ;; Most of the build is single-threaded. This also improves the ;; build time on machines with "only" 8GB of RAM. #:parallel-build? ,(target-x86-64?) #:make-flags (list ,(string-append "RUSTC_TARGET=" (platform-rust-target (lookup-platform-by-target-or-system (or (%current-target-system) (%current-system))))) ,(string-append "RUSTC_VERSION=" version) ,(string-append "MRUSTC_TARGET_VER=" (version-major+minor version)) ;; mrustc expects a C11 compatible compiler. Use the default ;; C language dialect from the GCC-10 compiler. ;; This is necessary for some architectures. "CFLAGS=-std=gnu11" "OUTDIR_SUF=") ;do not add version suffix to output dir #:phases (modify-phases %standard-phases (add-after 'unpack 'patch-reference-to-cc ;; This prevents errors like 'error: linker `cc` not found' when ;; "cc" is not found on PATH. (lambda* (#:key inputs #:allow-other-keys) (let ((gcc (assoc-ref inputs "gcc"))) (substitute* (find-files "." "^link.rs$") (("\"cc\".as_ref") (format #f "~s.as_ref" (string-append gcc "/bin/gcc"))))))) (add-after 'unpack 'setup-mrustc-sources (lambda* (#:key inputs #:allow-other-keys) (copy-recursively (assoc-ref inputs "mrustc-source") "../mrustc") ;; The Makefile of mrustc expects the sources directory of rustc ;; to be at this location, and it simplifies things to make it ;; so. (symlink (getcwd) (string-append "../mrustc/rustc-" ,version "-src")) (with-output-to-file "dl-version" (lambda _ (format #t "~a~%" ,version))))) (add-after 'setup-mrustc-sources 'patch-makefiles ;; This disables building the (unbundled) LLVM. (lambda* (#:key inputs parallel-build? #:allow-other-keys) (let ((llvm (assoc-ref inputs "llvm"))) (with-directory-excursion "../mrustc" (substitute* '("minicargo.mk" "run_rustc/Makefile") ;; Use the system-provided LLVM. (("LLVM_CONFIG [:|?]= .*") (string-append "LLVM_CONFIG := " llvm "/bin/llvm-config\n"))) (substitute* "minicargo.mk" ;; Do not try to fetch sources from the Internet. (("@curl.*") "")) (substitute* "Makefile" ;; Patch date and git obtained version information. ((" -D VERSION_GIT_FULLHASH=.*") (string-append " -D VERSION_GIT_FULLHASH=\\\"" ,%mrustc-commit "\\\"" " -D VERSION_GIT_BRANCH=\\\"master\\\"" " -D VERSION_GIT_SHORTHASH=\\\"" ,(string-take %mrustc-commit 7) "\\\"" " -D VERSION_BUILDTIME=" "\"\\\"Thu, 01 Jan 1970 00:00:01 +0000\\\"\"" " -D VERSION_GIT_ISDIRTY=0\n"))) (substitute* "minicargo.mk" ;; Do not try to fetch sources from the Internet. (("\\$\\(MINICARGO\\) \\$\\(RUSTC_SRC_DL\\)") "$(MINICARGO)")) (substitute* "run_rustc/Makefile" (("[$]Vtime ") "$V ") ;; Unlock the number of parallel jobs for cargo. (("-j [[:digit:]]+ ") "") ;; Patch the shebang of a generated wrapper for rustc (("#!/bin/sh") (string-append "#!" (which "sh")))) (substitute* "run_rustc/rustc_proxy.sh" (("#!/bin/sh") (string-append "#!" (which "sh")))))))) (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums (lambda* _ (substitute* "Cargo.lock" (("(checksum = )\".*\"" all name) (string-append name "\"" ,%cargo-reference-hash "\""))) (generate-all-checksums "vendor"))) (add-before 'configure 'configure-cargo-home (lambda _ (let ((cargo-home (string-append (getcwd) "/.cargo"))) (mkdir-p cargo-home) (setenv "CARGO_HOME" cargo-home)))) (replace 'configure (lambda _ (setenv "CC" "gcc") (setenv "CXX" "g++") ;; The Guix LLVM package installs only shared libraries. (setenv "LLVM_LINK_SHARED" "1") ;; rustc still insists on having 'cc' on PATH in some places ;; (e.g. when building the 'test' library crate). (mkdir-p "/tmp/bin") (symlink (which "gcc") "/tmp/bin/cc") (setenv "PATH" (string-append "/tmp/bin:" (getenv "PATH"))))) (delete 'patch-generated-file-shebangs) (replace 'build (lambda* (#:key make-flags parallel-build? #:allow-other-keys) (let* ((src-root (getcwd)) (job-count (if parallel-build? (parallel-job-count) 1))) ;; Adapted from: ;; https://github.com/dtolnay/bootstrap/blob/master/build-1.54.0.sh. (chdir "../mrustc") ;; Use PARLEVEL since both minicargo and mrustc use it ;; to set the level of parallelism. (setenv "PARLEVEL" (number->string job-count)) (display "Building mrustc...\n") (apply invoke "make" make-flags) ;; This doesn't seem to build anything, but it ;; sets additional minicargo flags. (display "Building RUSTCSRC...\n") (apply invoke "make" "RUSTCSRC" make-flags) ;; This probably doesn't need to be called explicitly. (display "Building LIBS...\n") (apply invoke "make" "-f" "minicargo.mk" "LIBS" make-flags) (display "Building rustc...\n") (apply invoke "make" "-f" "minicargo.mk" "output/rustc" make-flags) (display "Building cargo...\n") (apply invoke "make" "-f" "minicargo.mk" "output/cargo" make-flags) ;; This one isn't listed in the build script. (display "Rebuilding stdlib with rustc...\n") (apply invoke "make" "-C" "run_rustc" make-flags)))) (replace 'install (lambda* (#:key inputs outputs #:allow-other-keys) (let* ((out (assoc-ref outputs "out")) (cargo (assoc-ref outputs "cargo")) (bin (string-append out "/bin")) (rustc (string-append bin "/rustc")) (cargo-bin (string-append cargo "/bin")) (lib (string-append out "/lib")) (system-lib-prefix (string-append lib "/rustlib/" ,(platform-rust-target (lookup-platform-by-target-or-system (or (%current-target-system) (%current-system)))) "/lib"))) (mkdir-p (dirname rustc)) (copy-file "run_rustc/output/prefix/bin/rustc_binary" rustc) (wrap-program rustc `("LD_LIBRARY_PATH" = (,system-lib-prefix))) (mkdir-p lib) (copy-recursively "run_rustc/output/prefix/lib" lib) (install-file "run_rustc/output/prefix/bin/cargo" cargo-bin))))))) (synopsis "Compiler for the Rust programming language") (description "Rust is a systems programming language that provides memory safety and thread safety guarantees.") (home-page "https://github.com/thepowersgang/mrustc") ;; The intermediate generated code is known to be inefficient and ;; therefore the build process needs 8GB of RAM while building. ;; It may support i686 soon: ;; . ;; XXX: The rust bootstrap is currently broken on riscv64, ;; remove it until this is fixed. (supported-systems '("x86_64-linux" "aarch64-linux")) ;; Dual licensed. (license (list license:asl2.0 license:expat)))) (define-public rust-1.55 (package (name "rust") (version "1.55.0") (source (origin (method url-fetch) (uri (rust-uri version)) (sha256 (base32 "07l28f7grdmi65naq71pbmvdd61hwcpi40ry7kp7dy7m233rldxj")) (modules '((guix build utils))) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project" "vendor/tikv-jemalloc-sys/jemalloc")) ;; Remove vendored dynamically linked libraries. ;; find . -not -type d -executable -exec file {} \+ | grep ELF (delete-file "vendor/vte/vim10m_match") (delete-file "vendor/vte/vim10m_table") ;; Also remove the bundled (mostly Windows) libraries. ;; find vendor -not -type d -exec file {} \+ | grep PE32 (for-each delete-file (find-files "vendor" ".*\\.(a|dll|exe|lib)$")) ;; Add support for riscv64-linux. (substitute* "vendor/tikv-jemallocator/src/lib.rs" ((" target_arch = \"s390x\"," all) (string-append all "\n target_arch = \"riscv64\","))))))) (outputs '("out" "cargo")) (properties '((hidden? . #t) (timeout . 72000) ;20 hours (max-silent-time . 18000))) ;5 hours (for armel) (build-system gnu-build-system) (arguments `(#:validate-runpath? #f ;; Only the final Rust is tested, not the intermediate bootstrap ones, ;; for performance and simplicity. #:tests? #f #:imported-modules ,%cargo-utils-modules ;for `generate-all-checksums' #:modules ((guix build cargo-utils) (guix build utils) (guix build gnu-build-system) (ice-9 match) (srfi srfi-1)) #:phases (modify-phases %standard-phases (add-after 'unpack 'set-env (lambda* (#:key inputs #:allow-other-keys) (setenv "SHELL" (which "sh")) (setenv "CONFIG_SHELL" (which "sh")) (setenv "CC" (search-input-file inputs "/bin/gcc")) ;; The Guix LLVM package installs only shared libraries. (setenv "LLVM_LINK_SHARED" "1"))) (add-after 'unpack 'set-linker-locale-to-utf8 (lambda _ (substitute* (find-files "." "^linker.rs$") (("linker.env\\(\"LC_ALL\", \"C\"\\);") "linker.env(\"LC_ALL\", \"en_US.UTF-8\");")))) (add-after 'unpack 'add-cc-shim-to-path (lambda _ (mkdir-p "/tmp/bin") (symlink (which "gcc") "/tmp/bin/cc") (setenv "PATH" (string-append "/tmp/bin:" (getenv "PATH"))))) (replace 'configure (lambda* (#:key inputs outputs #:allow-other-keys) (let* ((out (assoc-ref outputs "out")) (gcc (assoc-ref inputs "gcc")) (python (assoc-ref inputs "python")) (binutils (assoc-ref inputs "binutils")) (rustc (assoc-ref inputs "rustc-bootstrap")) (cargo (assoc-ref inputs "cargo-bootstrap")) (llvm (assoc-ref inputs "llvm"))) (call-with-output-file "config.toml" (lambda (port) (display (string-append " [llvm] [build] cargo = \"" cargo "/bin/cargo" "\" rustc = \"" rustc "/bin/rustc" "\" docs = false python = \"" python "/bin/python" "\" vendor = true submodules = false [install] prefix = \"" out "\" sysconfdir = \"etc\" [rust] debug=false jemalloc=false default-linker = \"" gcc "/bin/gcc" "\" channel = \"stable\" rpath = true [target." ,(platform-rust-target (lookup-platform-by-system (%current-system))) "] llvm-config = \"" llvm "/bin/llvm-config" "\" cc = \"" gcc "/bin/gcc" "\" cxx = \"" gcc "/bin/g++" "\" ar = \"" binutils "/bin/ar" "\" [dist] ") port)))))) (replace 'build ;; The standard library source location moved in this release. (lambda* (#:key parallel-build? #:allow-other-keys) (let ((job-spec (string-append "-j" (if parallel-build? (number->string (parallel-job-count)) "1")))) (invoke "./x.py" job-spec "build" "--stage=1" "library/std" "src/tools/cargo")))) (replace 'install (lambda* (#:key outputs #:allow-other-keys) (let* ((out (assoc-ref outputs "out")) (cargo-out (assoc-ref outputs "cargo")) (build (string-append "build/" ,(platform-rust-target (lookup-platform-by-target-or-system (or (%current-target-system) (%current-system))))))) ;; Manually do the installation instead of calling './x.py ;; install', as that is slow and needlessly rebuilds some ;; things. (install-file (string-append build "/stage1/bin/rustc") (string-append out "/bin")) (copy-recursively (string-append build "/stage1/lib") (string-append out "/lib")) (install-file (string-append build "/stage1-tools-bin/cargo") (string-append cargo-out "/bin"))))) (add-after 'install 'delete-install-logs (lambda* (#:key outputs #:allow-other-keys) (for-each (lambda (f) (false-if-exception (delete-file f))) (append-map (lambda (output) (find-files (string-append output "/lib/rustlib") "(^install.log$|^manifest-)")) (map cdr outputs))))) (add-after 'install 'wrap-rustc (lambda* (#:key inputs outputs #:allow-other-keys) (let ((out (assoc-ref outputs "out")) (libc (assoc-ref inputs "libc")) (ld-wrapper (assoc-ref inputs "ld-wrapper"))) ;; Let gcc find ld and libc startup files. (wrap-program (string-append out "/bin/rustc") `("PATH" ":" prefix (,(string-append ld-wrapper "/bin"))) `("LIBRARY_PATH" ":" suffix (,(string-append libc "/lib")))))))))) (native-inputs `(("pkg-config" ,pkg-config) ("python" ,python-wrapper) ("rustc-bootstrap" ,rust-bootstrap) ("cargo-bootstrap" ,rust-bootstrap "cargo"))) (inputs `(("llvm" ,llvm-13) ("openssl" ,openssl))) ;; rustc invokes gcc, so we need to set its search paths accordingly. ;; Note: duplicate its value here to cope with circular dependencies among ;; modules (see ). (native-search-paths (list (search-path-specification (variable "C_INCLUDE_PATH") (files '("include"))) (search-path-specification (variable "CPLUS_INCLUDE_PATH") (files '("include/c++" "include"))) (search-path-specification (variable "LIBRARY_PATH") (files '("lib" "lib64"))))) (supported-systems (delete "i586-gnu" %supported-systems)) (synopsis "Compiler for the Rust programming language") (description "Rust is a systems programming language that provides memory safety and thread safety guarantees.") (home-page "https://www.rust-lang.org") ;; Dual licensed. (license (list license:asl2.0 license:expat)))) (define-public rust-1.56 (let ((base-rust (rust-bootstrapped-package rust-1.55 "1.56.1" "04cmqx7nn63hzz7z27b2b0dj2qx18rck9ifvip43s6dampx8v2f3"))) (package (inherit base-rust) (arguments (substitute-keyword-arguments (package-arguments base-rust) ((#:validate-runpath? _ #t) #t) ((#:phases phases) `(modify-phases ,phases (delete 'add-cc-shim-to-path) (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums (lambda* _ (substitute* "Cargo.lock" (("(checksum = )\".*\"" all name) (string-append name "\"" ,%cargo-reference-hash "\""))) (generate-all-checksums "vendor")))))))))) (define-public rust-1.57 (rust-bootstrapped-package ;; Verified that it *doesn't* build with 1.55. e.g.: ;; * feature `edition2021` is required rust-1.56 "1.57.0" "06jw8ka2p3kls8p0gd4p0chhhb1ia1mlvj96zn78n7qvp71zjiim")) (define-public rust-1.58 (rust-bootstrapped-package ;; Verified that it *doesn't* build with 1.56. e.g.: ;; * error: attributes starting with `rustc` are reserved for use by the ;; `rustc` compiler ;; * error: cannot find attribute `rustc_do_not_const_check` in this scope ;; * error[E0522]: definition of an unknown language item: ;; `const_eval_select_ct` rust-1.57 "1.58.1" "1iq7kj16qfpkx8gvw50d8rf7glbm6s0pj2y1qkrz7mi56vfsyfd8")) (define-public rust-1.59 (let ((base-rust (rust-bootstrapped-package ;; Verified that it *doesn't* build with 1.57. e.g.: ;; * error: `doc(primitive)` should never have been stable ;; * error[E0522]: definition of an unknown language item: ;; `generator_return` ;; * error[E0206]: the trait `Copy` may not be implemented for this type rust-1.58 "1.59.0" "1yc5bwcbmbwyvpfq7zvra78l0r8y3lbv60kbr62fzz2vx2pfxj57"))) (package (inherit base-rust) (arguments (if (target-riscv64?) (substitute-keyword-arguments (package-arguments base-rust) ((#:phases phases) `(modify-phases ,phases (add-after 'unpack 'revert-riscv-pause-instruction (lambda _ ;; This fails with: ;; error: unknown directive, referring to '.insn'. ;; This is due to building with llvm < 14. ;; https://github.com/rust-lang/stdarch/issues/1291 ;; Partial roll-back from this commit: ;; https://github.com/rust-lang/stdarch/pull/1271 (substitute* "library/stdarch/crates/core_arch/src/riscv_shared/mod.rs" (("\\.insn i 0x0F, 0, x0, x0, 0x010") ".word 0x0100000F"))))))) (package-arguments base-rust)))))) (define-public rust-1.60 (rust-bootstrapped-package ;; Verified that it *doesn't* build with 1.58. e.g.: ;; * error: unknown codegen option: `symbol-mangling-version` rust-1.59 "1.60.0" "1drqr0a26x1rb2w3kj0i6abhgbs3jx5qqkrcwbwdlx7n3inq5ji0")) (define-public rust-1.61 (let ((base-rust (rust-bootstrapped-package rust-1.60 "1.61.0" "1vfs05hkf9ilk19b2vahqn8l6k17pl9nc1ky9kgspaascx8l62xd"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project" "vendor/tikv-jemalloc-sys/jemalloc")) ;; Remove vendored dynamically linked libraries. ;; find . -not -type d -executable -exec file {} \+ | grep ELF (delete-file "vendor/vte/vim10m_match") (delete-file "vendor/vte/vim10m_table") ;; Also remove the bundled (mostly Windows) libraries. (for-each delete-file (find-files "vendor" ".*\\.(a|dll|exe|lib)$"))))))))) (define-public rust-1.62 (rust-bootstrapped-package rust-1.61 "1.62.1" "0gqkg34ic77dcvsz69qbdng6g3zfhl6hnhx7ha1mjkyrzipvxb3j")) (define-public rust-1.63 (rust-bootstrapped-package rust-1.62 "1.63.0" "1l4rrbzhxv88pnfq94nbyb9m6lfnjwixma3mwjkmvvs2aqlq158z")) (define-public rust-1.64 (let ((base-rust (rust-bootstrapped-package rust-1.63 "1.64.0" "018j720b2n12slp4xk64jc6shkncd46d621qdyzh2a8s3r49zkdk"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (patches (search-patches "rust-1.64-fix-riscv64-bootstrap.patch")) (patch-flags '("-p1" "--reverse")))) (arguments (substitute-keyword-arguments (package-arguments base-rust) ((#:phases phases) `(modify-phases ,phases (replace 'patch-cargo-checksums (lambda _ (substitute* '("Cargo.lock" "src/bootstrap/Cargo.lock" "src/tools/rust-analyzer/Cargo.lock") (("(checksum = )\".*\"" all name) (string-append name "\"" ,%cargo-reference-hash "\""))) (generate-all-checksums "vendor")))))))))) (define-public rust-1.65 (let ((base-rust (rust-bootstrapped-package rust-1.64 "1.65.0" "0f005kc0vl7qyy298f443i78ibz71hmmh820726bzskpyrkvna2q"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (patches '()) (patch-flags '("-p1"))))))) (define-public rust-1.66 (rust-bootstrapped-package rust-1.65 "1.66.1" "1fjr94gsicsxd2ypz4zm8aad1zdbiccr7qjfbmq8f8f7jhx96g2v")) (define-public rust-1.67 (let ((base-rust (rust-bootstrapped-package rust-1.66 "1.67.1" "0vpzv6rm3w1wbni17ryvcw83k5klhghklylfdza3nnp8blz3sj26"))) (package (inherit base-rust) (inputs (modify-inputs (package-inputs base-rust) (replace "llvm" llvm-15)))))) (define-public rust-1.68 (rust-bootstrapped-package rust-1.67 "1.68.2" "15ifyd5jj8rd979dkakp887hgmhndr68pqaqvd2hqkfdywirqcwk")) (define-public rust-1.69 (let ((base-rust (rust-bootstrapped-package rust-1.68 "1.69.0" "03zn7kx5bi5mdfsqfccj4h8gd6abm7spj0kjsfxwlv5dcwc9f1gv"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project" "vendor/tikv-jemalloc-sys/jemalloc")) ;; Also remove the bundled (mostly Windows) libraries. (for-each delete-file (find-files "vendor" "\\.(a|dll|exe|lib)$"))))))))) (define-public rust-1.70 (let ((base-rust (rust-bootstrapped-package rust-1.69 "1.70.0" "0z6j7d0ni0rmfznv0w3mrf882m11kyh51g2bxkj40l3s1c0axgxj"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) ;; Rust 1.70 adds the rustix library which depends on the vendored ;; fd-lock crate. The fd-lock crate uses Outline assembly which expects ;; a precompiled static library. Enabling the "cc" feature tells the ;; build.rs script to compile the assembly files instead of searching ;; for a precompiled library. (patches (search-patches "rust-1.70-fix-rustix-build.patch"))))))) (define-public rust-1.71 (let ((base-rust (rust-bootstrapped-package rust-1.70 "1.71.1" "0bj79syjap1kgpg9pc0r4jxc0zkxwm6phjf3digsfafms580vabg"))) (package (inherit base-rust) (arguments (substitute-keyword-arguments (package-arguments base-rust) ((#:phases phases) `(modify-phases ,phases (replace 'patch-cargo-checksums (lambda _ (substitute* (cons* "Cargo.lock" "src/bootstrap/Cargo.lock" (find-files "src/tools" "Cargo.lock")) (("(checksum = )\".*\"" all name) (string-append name "\"" ,%cargo-reference-hash "\""))) (generate-all-checksums "vendor")))))))))) (define-public rust-1.72 (let ((base-rust (rust-bootstrapped-package rust-1.71 "1.72.1" "15gqd1jzhnc16a7gjmav4x1v83jjbzyjh1gvcdfvpkajd9gq8j3z"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project" "vendor/tikv-jemalloc-sys/jemalloc")) ;; Remove vendored dynamically linked libraries. ;; find . -not -type d -executable -exec file {} \+ | grep ELF ;; Also remove the bundled (mostly Windows) libraries. (for-each delete-file (find-files "vendor" "\\.(a|dll|exe|lib)$")) ;; Adjust rustc_driver to explicitly use rustix with libc backend. (substitute* "compiler/rustc_driver/Cargo.toml" (("rustix = \"=0.37.11\"") (string-append "rustix = { version = \"=0.37.11\"," " features = [\"use-libc\"] }")))))))))) (define-public rust-1.73 (let ((base-rust (rust-bootstrapped-package rust-1.72 "1.73.0" "0fmvn7vg3qg9xprgfwv10g3ygy8i4j4bkcxcr1xdy89d3xnjxmln"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project" "vendor/tikv-jemalloc-sys/jemalloc")) ;; Remove vendored dynamically linked libraries. ;; find . -not -type d -executable -exec file {} \+ | grep ELF ;; Also remove the bundled (mostly Windows) libraries. (for-each delete-file (find-files "vendor" "\\.(a|dll|exe|lib)$")) ;; Adjust vendored dependency to explicitly use rustix with libc backend. (substitute* "vendor/tempfile-3.6.0/Cargo.toml" (("features = \\[\"fs\"" all) (string-append all ", \"use-libc\"")))))))))) (define rust-1.74 (let ((base-rust (rust-bootstrapped-package rust-1.73 "1.74.1" "07930r17dkj3dnsrmilywb6p9i2g2jx56ndfpa2wh8crzhi3xnv7"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (snippet '(begin (for-each delete-file-recursively '("src/llvm-project" "vendor/tikv-jemalloc-sys/jemalloc")) ;; Remove vendored dynamically linked libraries. ;; find . -not -type d -executable -exec file {} \+ | grep ELF ;; Also remove the bundled (mostly Windows) libraries. (for-each delete-file (find-files "vendor" "\\.(a|dll|exe|lib)$")) ;; Adjust vendored dependency to explicitly use rustix with libc backend. (substitute* "vendor/tempfile/Cargo.toml" (("features = \\[\"fs\"" all) (string-append all ", \"use-libc\"")))))))))) (define rust-1.75 (let ((base-rust (rust-bootstrapped-package rust-1.74 "1.75.0" "1260mf3066ki6y55pvr35lnf54am6z96a3ap3hniwd4xpi2rywsv"))) (package (inherit base-rust) (source (origin (inherit (package-source base-rust)) (patches '())))))) (define (make-ignore-test-list strs) "Function to make creating a list to ignore tests a bit easier." (map (lambda (str) `((,str) (string-append "#[ignore]\n" ,str))) strs)) ;;; Note: Only the latest version of Rust is supported and tested. The ;;; intermediate rusts are built for bootstrapping purposes and should not ;;; be relied upon. This is to ease maintenance and reduce the time ;;; required to build the full Rust bootstrap chain. ;;; ;;; Here we take the latest included Rust, make it public, and re-enable tests ;;; and extra components such as rustfmt. (define-public rust (let ((base-rust rust-1.75)) (package (inherit base-rust) (properties (alist-delete 'hidden? (package-properties base-rust))) (outputs (cons* "rust-src" "tools" (package-outputs base-rust))) (arguments (substitute-keyword-arguments (strip-keyword-arguments '(#:tests?) (package-arguments base-rust)) ((#:phases phases) `(modify-phases ,phases (add-after 'unpack 'relax-gdb-auto-load-safe-path ;; Allow GDB to load binaries from any location, otherwise the ;; gdbinfo tests fail. This is only useful when testing with a ;; GDB version newer than 8.2. (lambda _ (setenv "HOME" (getcwd)) (with-output-to-file (string-append (getenv "HOME") "/.gdbinit") (lambda _ (format #t "set auto-load safe-path /~%"))) ;; Do not launch gdb with '-nx' which causes it to not execute ;; any init file. (substitute* "src/tools/compiletest/src/runtest.rs" (("\"-nx\".as_ref\\(\\), ") "")))) (add-after 'unpack 'disable-tests-requiring-git (lambda _ (substitute* "src/tools/cargo/tests/testsuite/git.rs" ,@(make-ignore-test-list '("fn fetch_downloads_with_git2_first_"))))) (add-after 'unpack 'disable-tests-requiring-mercurial (lambda _ (with-directory-excursion "src/tools/cargo/tests/testsuite/cargo_init" (substitute* '("mercurial_autodetect/mod.rs" "simple_hg_ignore_exists/mod.rs") ,@(make-ignore-test-list '("fn case")))))) (add-after 'unpack 'disable-tests-using-cargo-publish (lambda _ (with-directory-excursion "src/tools/cargo/tests/testsuite" (substitute* "alt_registry.rs" ,@(make-ignore-test-list '("fn warn_for_unused_fields"))) (substitute* '("cargo_add/locked_unchanged/mod.rs" "cargo_add/lockfile_updated/mod.rs" "cargo_remove/update_lock_file/mod.rs") ,@(make-ignore-test-list '("fn case"))) (substitute* "git_shallow.rs" ,@(make-ignore-test-list '("fn gitoxide_clones_git_dependency_with_shallow_protocol_and_git2_is_used_for_followup_fetches" "fn gitoxide_clones_registry_with_shallow_protocol_and_aborts_and_updates_again" "fn gitoxide_clones_registry_with_shallow_protocol_and_follow_up_fetch_maintains_shallowness" "fn gitoxide_clones_registry_with_shallow_protocol_and_follow_up_with_git2_fetch" "fn gitoxide_clones_registry_without_shallow_protocol_and_follow_up_fetch_uses_shallowness" "fn gitoxide_shallow_clone_followed_by_non_shallow_update" "fn gitoxide_clones_shallow_two_revs_same_deps" "fn gitoxide_git_dependencies_switch_from_branch_to_rev" "fn shallow_deps_work_with_revisions_and_branches_mixed_on_same_dependency"))) (substitute* "install.rs" ,@(make-ignore-test-list '("fn failed_install_retains_temp_directory"))) (substitute* "offline.rs" ,@(make-ignore-test-list '("fn gitoxide_cargo_compile_offline_with_cached_git_dep_shallow_dep"))) (substitute* "patch.rs" ,@(make-ignore-test-list '("fn gitoxide_clones_shallow_old_git_patch")))))) (add-after 'unpack 'disable-tests-broken-on-aarch64 (lambda _ (with-directory-excursion "src/tools/cargo/tests/testsuite/" (substitute* "build_script_extra_link_arg.rs" ,@(make-ignore-test-list '("fn build_script_extra_link_arg_bin_single"))) (substitute* "build_script.rs" ,@(make-ignore-test-list '("fn env_test"))) (substitute* "collisions.rs" ,@(make-ignore-test-list '("fn collision_doc_profile_split"))) (substitute* "concurrent.rs" ,@(make-ignore-test-list '("fn no_deadlock_with_git_dependencies"))) (substitute* "features2.rs" ,@(make-ignore-test-list '("fn dep_with_optional_host_deps_activated")))))) (add-after 'unpack 'patch-command-exec-tests ;; This test suite includes some tests that the stdlib's ;; `Command` execution properly handles in situations where ;; the environment or PATH variable are empty, but this fails ;; since we don't have `echo` available at its usual FHS ;; location. (lambda _ (substitute* "tests/ui/command/command-exec.rs" (("Command::new\\(\"echo\"\\)") (format #f "Command::new(~s)" (which "echo")))))) (add-after 'unpack 'patch-command-uid-gid-test (lambda _ (substitute* "tests/ui/command/command-uid-gid.rs" (("/bin/sh") (which "sh")) (("/bin/ls") (which "ls"))))) (add-after 'unpack 'skip-shebang-tests ;; This test make sure that the parser behaves properly when a ;; source file starts with a shebang. Unfortunately, the ;; patch-shebangs phase changes the meaning of these edge-cases. ;; We skip the test since it's drastically unlikely Guix's ;; packaging will introduce a bug here. (lambda _ (delete-file "tests/ui/parser/shebang/sneaky-attrib.rs"))) (add-after 'unpack 'patch-process-tests (lambda* (#:key inputs #:allow-other-keys) (let ((bash (assoc-ref inputs "bash"))) (with-directory-excursion "library/std/src" (substitute* "process/tests.rs" (("\"/bin/sh\"") (string-append "\"" bash "/bin/sh\""))) ;; The three tests which are known to fail upstream on QEMU ;; emulation on aarch64 and riscv64 also fail on x86_64 in ;; Guix's build system. Skip them on all builds. (substitute* "sys/unix/process/process_common/tests.rs" ;; We can't use make-ignore-test-list because we will get ;; build errors due to the double [ignore] block. (("target_arch = \"arm\"" arm) (string-append "target_os = \"linux\",\n" " " arm))))))) (add-after 'unpack 'disable-interrupt-tests (lambda _ ;; This test hangs in the build container; disable it. (substitute* "src/tools/cargo/tests/testsuite/freshness.rs" ,@(make-ignore-test-list '("fn linking_interrupted"))) ;; Likewise for the ctrl_c_kills_everyone test. (substitute* "src/tools/cargo/tests/testsuite/death.rs" ,@(make-ignore-test-list '("fn ctrl_c_kills_everyone"))))) (add-after 'unpack 'adjust-rpath-values ;; This adds %output:out to rpath, allowing us to install utilities in ;; different outputs while reusing the shared libraries. (lambda* (#:key outputs #:allow-other-keys) (let ((out (assoc-ref outputs "out"))) (substitute* "src/bootstrap/src/core/builder.rs" ((" = rpath.*" all) (string-append all " " "rustflags.arg(\"-Clink-args=-Wl,-rpath=" out "/lib\");\n")))))) (add-after 'configure 'add-gdb-to-config (lambda* (#:key inputs #:allow-other-keys) (let ((gdb (assoc-ref inputs "gdb"))) (substitute* "config.toml" (("^python =.*" all) (string-append all "gdb = \"" gdb "/bin/gdb\"\n")))))) (replace 'build ;; Phase overridden to also build more tools. (lambda* (#:key parallel-build? #:allow-other-keys) (let ((job-spec (string-append "-j" (if parallel-build? (number->string (parallel-job-count)) "1")))) (invoke "./x.py" job-spec "build" "library/std" ;rustc "src/tools/cargo" "src/tools/clippy" "src/tools/rust-analyzer" "src/tools/rustfmt")))) (replace 'check ;; Phase overridden to also test more tools. (lambda* (#:key tests? parallel-build? #:allow-other-keys) (when tests? (let ((job-spec (string-append "-j" (if parallel-build? (number->string (parallel-job-count)) "1")))) (invoke "./x.py" job-spec "test" "-vv" "library/std" "src/tools/cargo" "src/tools/clippy" "src/tools/rust-analyzer" "src/tools/rustfmt"))))) (replace 'install ;; Phase overridden to also install more tools. (lambda* (#:key outputs #:allow-other-keys) (invoke "./x.py" "install") (substitute* "config.toml" ;; Adjust the prefix to the 'cargo' output. (("prefix = \"[^\"]*\"") (format #f "prefix = ~s" (assoc-ref outputs "cargo")))) (invoke "./x.py" "install" "cargo") (substitute* "config.toml" ;; Adjust the prefix to the 'tools' output. (("prefix = \"[^\"]*\"") (format #f "prefix = ~s" (assoc-ref outputs "tools")))) (invoke "./x.py" "install" "clippy") (invoke "./x.py" "install" "rust-analyzer") (invoke "./x.py" "install" "rustfmt"))) (add-after 'install 'install-rust-src (lambda* (#:key outputs #:allow-other-keys) (let ((out (assoc-ref outputs "rust-src")) (dest "/lib/rustlib/src/rust")) (mkdir-p (string-append out dest)) (copy-recursively "library" (string-append out dest "/library")) (copy-recursively "src" (string-append out dest "/src"))))) (add-after 'install 'remove-uninstall-script (lambda* (#:key outputs #:allow-other-keys) ;; This script has no use on Guix ;; and it retains a reference to the host's bash. (delete-file (string-append (assoc-ref outputs "out") "/lib/rustlib/uninstall.sh")))) (add-after 'install-rust-src 'wrap-rust-analyzer (lambda* (#:key outputs #:allow-other-keys) (let ((bin (string-append (assoc-ref outputs "tools") "/bin"))) (rename-file (string-append bin "/rust-analyzer") (string-append bin "/.rust-analyzer-real")) (call-with-output-file (string-append bin "/rust-analyzer") (lambda (port) (format port "#!~a if test -z \"${RUST_SRC_PATH}\";then export RUST_SRC_PATH=~S;fi; exec -a \"$0\" \"~a\" \"$@\"" (which "bash") (string-append (assoc-ref outputs "rust-src") "/lib/rustlib/src/rust/library") (string-append bin "/.rust-analyzer-real")))) (chmod (string-append bin "/rust-analyzer") #o755)))))))) (inputs (modify-inputs (package-inputs base-rust) (prepend curl))) ;; Add test inputs. (native-inputs (cons* `("gdb" ,gdb/pinned) `("procps" ,procps) (package-native-inputs base-rust)))))) (define*-public (make-rust-sysroot target) (make-rust-sysroot/implementation target rust)) (define make-rust-sysroot/implementation (mlambda (target base-rust) (package (inherit base-rust) (name (string-append "rust-sysroot-for-" target)) (outputs '("out")) (arguments (substitute-keyword-arguments (package-arguments base-rust) ((#:tests? _ #f) #f) ; This package for cross-building. ((#:phases phases) `(modify-phases ,phases (add-after 'unpack 'unbundle-xz (lambda _ (delete-file-recursively "vendor/lzma-sys/xz-5.2") ;; Remove the option of using the static library. ;; This is necessary for building the sysroot. (substitute* "vendor/lzma-sys/build.rs" (("!want_static && ") "")))) ,@(if (target-mingw? target) `((add-after 'set-env 'patch-for-mingw (lambda* (#:key inputs #:allow-other-keys) (setenv "LIBRARY_PATH" (string-join (delete (string-append (or (assoc-ref inputs "mingw-w64-i686-winpthreads") (assoc-ref inputs "mingw-w64-x86_64-winpthreads")) "/lib") (string-split (getenv "LIBRARY_PATH") #\:)) ":")) (setenv "CPLUS_INCLUDE_PATH" (string-join (delete (string-append (or (assoc-ref inputs "mingw-w64-i686-winpthreads") (assoc-ref inputs "mingw-w64-x86_64-winpthreads")) "/include") (string-split (getenv "CPLUS_INCLUDE_PATH") #\:)) ":")) ;; When building a rust-sysroot this crate is only used for ;; the rust-installer. (substitute* "vendor/num_cpus/src/linux.rs" (("\\.ceil\\(\\)") "")) ;; gcc doesn't recognize this flag. (substitute* "compiler/rustc_target/src/spec/base/windows_gnullvm.rs" ((", \"--unwindlib=none\"") ""))))) `()) (replace 'set-env (lambda* (#:key inputs #:allow-other-keys) (setenv "SHELL" (which "sh")) (setenv "CONFIG_SHELL" (which "sh")) (setenv "CC" (which "gcc")) ;; The Guix LLVM package installs only shared libraries. (setenv "LLVM_LINK_SHARED" "1") (setenv "CROSS_LIBRARY_PATH" (getenv "LIBRARY_PATH")) (setenv "CROSS_CPLUS_INCLUDE_PATH" (getenv "CPLUS_INCLUDE_PATH")) (when (assoc-ref inputs (string-append "glibc-cross-" ,target)) (setenv "LIBRARY_PATH" (string-join (delete (string-append (assoc-ref inputs (string-append "glibc-cross-" ,target)) "/lib") (string-split (getenv "LIBRARY_PATH") #\:)) ":")) (setenv "CPLUS_INCLUDE_PATH" (string-join (delete (string-append (assoc-ref inputs (string-append "glibc-cross-" ,target)) "/include") (string-split (getenv "CPLUS_INCLUDE_PATH") #\:)) ":"))))) (replace 'configure (lambda* (#:key inputs outputs #:allow-other-keys) (let* ((out (assoc-ref outputs "out")) (target-cc (search-input-file inputs (string-append "/bin/" ,(cc-for-target target))))) (call-with-output-file "config.toml" (lambda (port) (display (string-append " [llvm] [build] cargo = \"" (search-input-file inputs "/bin/cargo") "\" rustc = \"" (search-input-file inputs "/bin/rustc") "\" docs = false python = \"" (which "python") "\" vendor = true submodules = false target = [\"" ,(platform-rust-target (lookup-platform-by-target target)) "\"] [install] prefix = \"" out "\" sysconfdir = \"etc\" [rust] debug = false jemalloc = false default-linker = \"" target-cc "\" channel = \"stable\" [target." ,(platform-rust-target (lookup-platform-by-system (%current-system))) "] # These are all native tools llvm-config = \"" (search-input-file inputs "/bin/llvm-config") "\" linker = \"" (which "gcc") "\" cc = \"" (which "gcc") "\" cxx = \"" (which "g++") "\" ar = \"" (which "ar") "\" [target." ,(platform-rust-target (lookup-platform-by-target target)) "] llvm-config = \"" (search-input-file inputs "/bin/llvm-config") "\" linker = \"" target-cc "\" cc = \"" target-cc "\" cxx = \"" (search-input-file inputs (string-append "/bin/" ,(cxx-for-target target))) "\" ar = \"" (search-input-file inputs (string-append "/bin/" ,(ar-for-target target))) "\" [dist] ") port)))))) (replace 'build ;; Phase overridden to build the necessary directories. (lambda* (#:key parallel-build? #:allow-other-keys) (let ((job-spec (string-append "-j" (if parallel-build? (number->string (parallel-job-count)) "1")))) ;; This works for us with the --sysroot flag ;; and then we can build ONLY library/std (invoke "./x.py" job-spec "build" "library/std")))) (replace 'install (lambda _ (invoke "./x.py" "install" "library/std"))) (delete 'install-rust-src) (delete 'wrap-rust-analyzer) (delete 'wrap-rustc))))) (inputs (modify-inputs (package-inputs base-rust) (prepend xz))) ; for lzma-sys (propagated-inputs (if (target-mingw? target) (modify-inputs (package-propagated-inputs base-rust) (prepend (if (string=? "i686-w64-mingw32" target) mingw-w64-i686-winpthreads mingw-w64-x86_64-winpthreads))) (package-propagated-inputs base-rust))) (native-inputs (if (target-mingw? target) (modify-inputs (package-native-inputs base-rust) (prepend (cross-gcc target #:libc (cross-libc target)) (cross-binutils target) (if (string=? "i686-w64-mingw32" target) mingw-w64-i686-winpthreads mingw-w64-x86_64-winpthreads) libunwind)) (modify-inputs (package-native-inputs base-rust) (prepend (cross-gcc target #:libc (cross-libc target)) (cross-libc target) (cross-binutils target))))) (properties `((hidden? . #t) ,(package-properties base-rust)))))) (define-public rust-analyzer (package (name "rust-analyzer") (version (package-version rust)) (source #f) (build-system trivial-build-system) (arguments (list #:modules '((guix build utils)) #:builder #~(begin (use-modules (guix build utils)) (let ((rust (assoc-ref %build-inputs "rust"))) (install-file (string-append rust "/bin/rust-analyzer") (string-append #$output "/bin")) (copy-recursively (string-append rust "/share") (string-append #$output "/share")))))) (inputs (list (list rust "tools"))) (home-page "https://rust-analyzer.github.io/") (synopsis "Experimental Rust compiler front-end for IDEs") (description "Rust-analyzer is a modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust.") (license (list license:expat license:asl2.0))))