failed to run custom build command for log v0.4.1

[johnpangalos]

Hey I recently bought an M1 Mac and decided to try the rust beta and have run into a problem when build this repo (I was trying to compile something else and this was the first error I received). When building on the current rust beta (cargo 1.49.0-beta (b9216831a 2020-11-24)) I receive the following error message:

cargo build --verbose
    Updating crates.io index
  Downloaded cfg-if v1.0.0
  Downloaded 1 crate (7.9 KB) in 0.43s
   Compiling log v0.4.11 (/Users/johnpangalos/repos/log)
   Compiling cfg-if v1.0.0
     Running `rustc --crate-name build_script_build build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=aa33ebf73a613007 -C extra-filename=-aa33ebf73a613007 --out-dir /Users/johnpangalos/repos/log/target/debug/build/log-aa33ebf73a613007 -C incremental=/Users/johnpangalos/repos/log/target/debug/incremental -L dependency=/Users/johnpangalos/repos/log/target/debug/deps`
     Running `rustc --crate-name cfg_if --edition=2018 /Users/johnpangalos/.cargo/registry/src/gitpro.ttaallkk.top-1ecc6299db9ec823/cfg-if-1.0.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=51b7bb36365783be -C extra-filename=-51b7bb36365783be --out-dir /Users/johnpangalos/repos/log/target/debug/deps -L dependency=/Users/johnpangalos/repos/log/target/debug/deps --cap-lints allow`
     Running `/Users/johnpangalos/repos/log/target/debug/build/log-aa33ebf73a613007/build-script-build`
error: failed to run custom build command for `log v0.4.11 (/Users/johnpangalos/repos/log)`

Caused by:
  process didn't exit successfully: `/Users/johnpangalos/repos/log/target/debug/build/log-aa33ebf73a613007/build-script-build` (signal: 9, SIGKILL: kill)

I would love to help out in anyway I can but honestly I am not a experienced rust developer. Let me know if there is anything else you need to know from me. Thanks!

[johnpangalos]

I tried running it again just now and it seems to have compiled... Here is the output

cargo build --verbose
       Fresh cfg-if v1.0.0
   Compiling log v0.4.11 (/Users/johnpangalos/repos/log)
     Running `rustc --crate-name log src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=5cf34cb8864094ad -C extra-filename=-5cf34cb8864094ad --out-dir /Users/johnpangalos/repos/log/target/debug/deps -C incremental=/Users/johnpangalos/repos/log/target/debug/incremental -L dependency=/Users/johnpangalos/repos/log/target/debug/deps --extern cfg_if=/Users/johnpangalos/repos/log/target/debug/deps/libcfg_if-51b7bb36365783be.rmeta --cfg atomic_cas --cfg has_atomics`
    Finished dev [unoptimized + debuginfo] target(s) in 0.18s

I'll close for now.

[Thomasdezeeuw]

@Johnny88 for reference, it means that running the build script failed (located here: https://github.com/rust-lang/log/blob/078e68fa1e27d3dd66ee524e0ef646cfb434c6f9/build.rs). That said, I'm not sure what could have failed.

[sfackler]

There's something funky with macOS's handling of untrusted executables on ARM: rust-lang/cargo#8913