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RUSTFLAGS on Alpine #127498

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mo8it opened this issue Jul 8, 2024 · 1 comment
Closed

RUSTFLAGS on Alpine #127498

mo8it opened this issue Jul 8, 2024 · 1 comment
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C-bug Category: This is a bug. T-cargo Relevant to the cargo team, which will review and decide on the PR/issue.

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@mo8it
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mo8it commented Jul 8, 2024 •
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Compiling with cargo and RUSTFLAGS fails on Alpine.

Here is how to reproduce it:

# Docker
docker run -it --rm rust:alpine sh -c "cargo new foo && cd foo && RUSTFLAGS='-A warnings' cargo r"

# Podman
podman run -it --rm docker.io/library/rust:alpine sh -c "cargo new foo && cd foo && RUSTFLAGS='-A warnings' cargo r"

Note that the command works if you remove the RUSTFLAGS environment variable.

Output 
error: output of --print=file-names missing when learning about target-specific information from rustc
command was: `/usr/local/rustup/toolchains/1.79.0-x86_64-unknown-linux-musl/bin/rustc - --crate-name ___ --print=file-names -A warnings --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=split-debuginfo --print=crate-name --print=cfg`
                                                                                                                                                                          
--- stdout
___
lib___.rlib
lib___.a
lib___.so
/usr/local/rustup/toolchains/1.79.0-x86_64-unknown-linux-musl
off
packed
unpacked
___
debug_assertions
panic="unwind"
proc_macro
target_abi=""
target_arch="x86_64"
target_endian="little"
target_env="musl"
target_family="unix"
target_feature="fxsr"
target_feature="sse"
target_feature="sse2"
target_has_atomic="16"
target_has_atomic="32"
target_has_atomic="64"
target_has_atomic="8"
target_has_atomic="ptr"
target_os="linux"
target_pointer_width="64"
target_vendor="unknown"
unix

This seems like an argument parsing problem to me.

The background is the following Rustlings issue: rust-lang/rustlings#2036
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jul 8, 2024
@mo8it mo8it mentioned this issue Jul 8, 2024
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@ehuss
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ehuss commented Jul 9, 2024

Thanks for the report! I believe this is a duplicate of rust-lang/cargo#8010, so closing in favor of that.

@ehuss ehuss closed this as not planned Won't fix, can't repro, duplicate, stale Jul 9, 2024
@saethlin saethlin added T-cargo Relevant to the cargo team, which will review and decide on the PR/issue. C-bug Category: This is a bug. and removed needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Jul 9, 2024
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