[INFO] crate ubpf-sys 0.1.1 is already in cache
[INFO] extracting crate ubpf-sys 0.1.1 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/ubpf-sys/0.1.1
[INFO] extracting crate ubpf-sys 0.1.1 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/ubpf-sys/0.1.1
[INFO] validating manifest of ubpf-sys-0.1.1 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ubpf-sys-0.1.1 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ubpf-sys-0.1.1
[INFO] finished frobbing ubpf-sys-0.1.1
[INFO] frobbed toml for ubpf-sys-0.1.1 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/ubpf-sys/0.1.1/Cargo.toml
[INFO] started frobbing ubpf-sys-0.1.1
[INFO] finished frobbing ubpf-sys-0.1.1
[INFO] frobbed toml for ubpf-sys-0.1.1 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/ubpf-sys/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ubpf-sys-0.1.1 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/ubpf-sys/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 253f2bc34c29f58b31f4c40e2a52d483c55a182f1cb42cdad24824c63d13f235
[INFO] running `"docker" "start" "-a" "253f2bc34c29f58b31f4c40e2a52d483c55a182f1cb42cdad24824c63d13f235"`
[INFO] [stderr]    Compiling ubpf-sys v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `ubpf-sys v0.1.1 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/ubpf-sys-b0e66be33bc3ab40/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Please specify CROSS_COMPILE=x86_64-linux-musl- cargo build --target=x86_64-unknown-linux-musl as the 'cc' crate incorrectly looks for musl-gcc', src/build.rs:20:3
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x559c337a5f7b - backtrace::backtrace::libunwind::trace::h80786597adfabf72
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x559c337a5f7b - backtrace::backtrace::trace_unsynchronized::hcac650387ca20819
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x559c337a5f7b - std::sys_common::backtrace::_print::h1b9354ff68cb5a2b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x559c337a5f7b - std::sys_common::backtrace::print::hee32569be499cf66
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x559c337a5f7b - std::panicking::default_hook::{{closure}}::h57d4a5a18212e6c4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x559c337a5c56 - std::panicking::default_hook::h6b5ac8e0c8ee81de
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x559c337a663d - std::panicking::rust_panic_with_hook::h087293a0d0382d86
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x559c33792fc1 - std::panicking::begin_panic::h96739b6dc49f4fc4
[INFO] [stderr]                                at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x559c337992f2 - build_script_build::tool::hdb77be3da64a9feb
[INFO] [stderr]                                at src/build.rs:20
[INFO] [stderr]    9:     0x559c3379912b - build_script_build::main::hea3d58208b891c32
[INFO] [stderr]                                at src/build.rs:13
[INFO] [stderr]   10:     0x559c337902a0 - std::rt::lang_start::{{closure}}::hb3f74c1b7aa9902b
[INFO] [stderr]                                at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/rt.rs:64
[INFO] [stderr]   11:     0x559c337a6093 - std::rt::lang_start_internal::{{closure}}::h1a060554ddace6f7
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   12:     0x559c337a6093 - std::panicking::try::do_call::h36cfd8d9c1d0d936
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   13:     0x559c337ac39a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   14:     0x559c337a6b4d - std::panicking::try::h225224763b892cde
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   15:     0x559c337a6b4d - std::panic::catch_unwind::h3043ed737cbd6e8e
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   16:     0x559c337a6b4d - std::rt::lang_start_internal::h97b8d999a39debed
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   17:     0x559c33790279 - std::rt::lang_start::hc52dec8b78f46b98
[INFO] [stderr]                                at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x559c33799d9a - main
[INFO] [stderr]   19:     0x7f6c8776e2e1 - __libc_start_main
[INFO] [stderr]   20:     0x559c3378cfaa - _start
[INFO] [stderr]   21:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "253f2bc34c29f58b31f4c40e2a52d483c55a182f1cb42cdad24824c63d13f235"`
[INFO] running `"docker" "rm" "-f" "253f2bc34c29f58b31f4c40e2a52d483c55a182f1cb42cdad24824c63d13f235"`
[INFO] [stdout] 253f2bc34c29f58b31f4c40e2a52d483c55a182f1cb42cdad24824c63d13f235