Build of `v4` fails on `i686-unknown-linux-gnu`/`x86_64-unknown-linux-gnu` with `cross`

[cakebaker]

Hi,

I noticed in our CI that the renovate PR that updates codspeed from 3.0.5 to 4.0.4 fails on i686-unknown-linux-gnu and x86_64-unknown-linux-gnu with cross. It works fine on i686-unknown-linux-musl and x86_64-unknown-linux-musl with cross.

Here is the error:

   Compiling codspeed v4.0.4
error: failed to run custom build command for `codspeed v4.0.4`

Caused by:
  process didn't exit successfully: `/target/debug/build/codspeed-3bad860d7e90d5b8/build-script-build` (exit status: 1)
  --- stdout
  cargo:rerun-if-changed=instrument-hooks/dist/core.c
  cargo:rerun-if-changed=instrument-hooks/includes/core.h
  cargo:rerun-if-changed=build.rs
  OUT_DIR = Some(/target/x86_64-unknown-linux-gnu/debug/build/codspeed-7b6f0295c0fb4125/out)
  OPT_LEVEL = Some(0)
  TARGET = Some(x86_64-unknown-linux-gnu)
  HOST = Some(x86_64-unknown-linux-gnu)
  cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
  CC_x86_64-unknown-linux-gnu = None
  cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
  CC_x86_64_unknown_linux_gnu = None
  cargo:rerun-if-env-changed=HOST_CC
  HOST_CC = None
  cargo:rerun-if-env-changed=CC
  CC = None
  cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
  RUSTC_WRAPPER = None
  cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some(true)
  CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
  cargo:rerun-if-env-changed=CFLAGS
  CFLAGS = None
  cargo:rerun-if-env-changed=HOST_CFLAGS
  HOST_CFLAGS = None
  cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
  CFLAGS_x86_64_unknown_linux_gnu = None
  cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
  CFLAGS_x86_64-unknown-linux-gnu = None
  CARGO_ENCODED_RUSTFLAGS = Some()

  --- stderr


  ERROR: Failed to compile instrument-hooks native library with cc-rs. Ensure you have an up-to-date C compiler installed.
  Compiler information: Tool { path: "cc", cc_wrapper_path: None, cc_wrapper_args: [], args: ["-O0", "-ffunction-sections", "-fdata-sections", "-fPIC", "-gdwarf-4", "-fno-omit-frame-pointer", "-m64", "-I", "instrument-hooks/includes", "-std=gnu17"], env: [("LC_ALL", "C")], family: Gnu, cuda: false, removed_args: [], has_internal_target_arg: false }
  Compilation error: ToolExecError: command did not execute successfully (status code exit status: 1): LC_ALL="C" "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "instrument-hooks/includes" "-std=gnu17" "-o" "/target/x86_64-unknown-linux-gnu/debug/build/codspeed-7b6f0295c0fb4125/out/b68c03e3d0475a32-core.o" "-c" "instrument-hooks/dist/core.c"

[cakebaker]

Closing this issue as it has been fixed with v4.0.5. Thanks!