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rust-1.91.0_beta produces a broken rustc-stage1 on custom musl target #146930

@stefson

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@stefson

hello everyone,

I'm building rust for a custom musl target and was about to test the 1.91.0_beta, but the build process fails due to seemingly missing libs:

running: RUSTC_BOOTSTRAP="1" "/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/build/armv7a-unknown-linux-musleabihf/stage1/bin/rustc" "--print=target-spec-json-schema" "-Zunstable-options" (failure_mode=Exit) (created at src/bootstrap/src/core/build_steps/dist.rs:628:21, executed at src/bootstrap/src/core/build_steps/dist.rs:632:24) Command `RUSTC_BOOTSTRAP="1" "/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/build/armv7a-unknown-linux-musleabihf/stage1/bin/rustc" "--print=target-spec-json-schema" "-Zunstable-options" (failure_mode=Exit)` failed with exit code 127 Created at: src/bootstrap/src/core/build_steps/dist.rs:628:21 Executed at: src/bootstrap/src/core/build_steps/dist.rs:632:24 --- STDOUT vvv --- STDERR vvv Error loading shared library librustc_driver-25f52a4f3a321d15.so: No such file or directory (needed by /var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/build/armv7a-unknown-linux-musleabihf/stage1/bin/rustc) Error relocating /var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/build/armv7a-unknown-linux-musleabihf/stage1/bin/rustc: _ZN3std2rt19lang_start_internal17hda59b061fa42e575E: symbol not found Error relocating /var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/build/armv7a-unknown-linux-musleabihf/stage1/bin/rustc: _RNvCs6FONwEGrKIA_17rustc_driver_impl4main: symbol not found Traceback (most recent call last): File "/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/./x.py", line 53, in <module> bootstrap.main() ~~~~~~~~~~~~~~^^ File "/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/src/bootstrap/bootstrap.py", line 1389, in main bootstrap(args) ~~~~~~~~~^^^^^^ File "/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/src/bootstrap/bootstrap.py", line 1364, in bootstrap run(args, env=env, verbose=build.verbose, is_bootstrap=True) ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/src/bootstrap/bootstrap.py", line 237, in run raise RuntimeError(err) RuntimeError: failed to run: /var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/build/bootstrap/debug/bootstrap install -v --config=/var/tmp/portage/dev-lang/rust-1.91.0_beta/work/rustc-beta-src/bootstrap.toml -j1 

this is my bootstrap.toml config file:

[llvm] download-ci-llvm = false optimize = true release-debuginfo = false assertions = false ninja = true targets = "ARM" experimental-targets = "" link-shared = false [build] build = "armv7a-unknown-linux-musleabihf" host = ["armv7a-unknown-linux-musleabihf"] target = ["armv7a-unknown-linux-musleabihf"] cargo = "/usr/lib/rust/1.90.0/bin/cargo" rustc = "/usr/lib/rust/1.90.0/bin/rustc" docs = false compiler-docs = false submodules = false python = "python3.13" locked-deps = true extended = true tools = ["cargo","rustdoc"] verbose = 2 sanitizers = false cargo-native-static = false [install] prefix = "/usr/lib/rust/1.91.0_beta" sysconfdir = "etc" docdir = "share/doc/rust" bindir = "bin" libdir = "lib" mandir = "share/man" [rust] # https://github.com/rust-lang/rust/issues/54872 codegen-units-std = 1 optimize = true debug = false debug-assertions = false debuginfo-level-rustc = 0 backtrace = true incremental = false default-linker = "armv7a-unknown-linux-musleabihf-gcc" channel = "stable" rpath = false verbose-tests = true optimize-tests = true codegen-tests = true dist-src = false # https://github.com/rust-lang/rust/issues/117885 remap-debuginfo = true lld = false # try to get rid of llvm-tools-preview llvm-tools = false backtrace-on-ice = true jemalloc = false # See https://github.com/rust-lang/rust/issues/121124 lto = "off" [dist] vendor = false src-tarball = false compression-formats = ["xz"] [target.armv7a-unknown-linux-musleabihf] cc = "armv7a-unknown-linux-musleabihf-gcc" cxx = "armv7a-unknown-linux-musleabihf-g++" linker = "armv7a-unknown-linux-musleabihf-gcc" ar = "armv7a-unknown-linux-musleabihf-ar" crt-static = false 

the file in question is def. present in the build dir:

./armv7a-unknown-linux-musleabihf/stage1-rustc/armv7a-unknown-linux-musleabihf/release/deps/librustc_driver-25f52a4f3a321d15.so ./armv7a-unknown-linux-musleabihf/stage1/lib/librustc_driver-25f52a4f3a321d15.so ./armv7a-unknown-linux-musleabihf/stage0-sysroot/lib/rustlib/armv7a-unknown-linux-musleabihf/lib/librustc_driver-25f52a4f3a321d15.so 

from folder ../rustc-beta-src/build/armv7a-unknown-linux-musleabihf/stage1/bin
I execute ./rustc gives me:

 /lib/ld-musl-armhf.so.1 (0xf791e000) Error loading shared library librustc_driver-25f52a4f3a321d15.so: No such file or directory (needed by rustc) libgcc_s.so.1 => /usr/lib/gcc/armv7a-unknown-linux-musleabihf/14/libgcc_s.so.1 (0xf790f000) libc.so => /lib/ld-musl-armhf.so.1 (0xf791e000) Error relocating rustc: _ZN3std2rt19lang_start_internal17hda59b061fa42e575E: symbol not found Error relocating rustc: _RNvCs6FONwEGrKIA_17rustc_driver_impl4main: symbol not found 

my git-commit-hash is b34cfaf51ab461e8aeb742c40ca790a4e5feefe1 ; 1.91.0_beta bootstrapped via 1.90.0

Additional context

the full build log can be found here: build.log.gz

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    C-bugCategory: This is a bug.T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.

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