[INFO] updating cached repository cbiffle/minimal-embedded-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/cbiffle/minimal-embedded-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/cbiffle/minimal-embedded-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/cbiffle/minimal-embedded-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cbiffle/minimal-embedded-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/cbiffle/minimal-embedded-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cbiffle/minimal-embedded-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cbiffle/minimal-embedded-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 61b70c9be2a42aeeee72b55a851bdd179e6e9539 [INFO] sha for GitHub repo cbiffle/minimal-embedded-rust: 61b70c9be2a42aeeee72b55a851bdd179e6e9539 [INFO] validating manifest of cbiffle/minimal-embedded-rust on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of cbiffle/minimal-embedded-rust on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing cbiffle/minimal-embedded-rust [INFO] finished frobbing cbiffle/minimal-embedded-rust [INFO] frobbed toml for cbiffle/minimal-embedded-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/cbiffle/minimal-embedded-rust/Cargo.toml [INFO] started frobbing cbiffle/minimal-embedded-rust [INFO] finished frobbing cbiffle/minimal-embedded-rust [INFO] frobbed toml for cbiffle/minimal-embedded-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cbiffle/minimal-embedded-rust/Cargo.toml [INFO] crate cbiffle/minimal-embedded-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing cbiffle/minimal-embedded-rust against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cbiffle/minimal-embedded-rust:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 68b10bd0c1307a65b38a4f0d24a886d1d2a63683ad626961717288cfd6c7603f [INFO] running `"docker" "start" "-a" "68b10bd0c1307a65b38a4f0d24a886d1d2a63683ad626961717288cfd6c7603f"` [INFO] [stderr] Compiling rust-libcore v0.0.3 [INFO] [stderr] error: failed to run custom build command for `rust-libcore v0.0.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/rust-libcore-47ce6accd6fa6d78/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Box', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-libcore-0.0.3/./build.rs:43:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x556beb86b43b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x556beb86b43b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x556beb86b43b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x556beb86b43b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x556beb86b43b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x556beb86b116 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x556beb86bafd - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x556beb851e45 - std::panicking::begin_panic::h56bf10e038ea032c [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:411 [INFO] [stderr] 8: 0x556beb85bb23 - build_script_build::main::h6cf31c960ec9c313 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-libcore-0.0.3/./build.rs:43 [INFO] [stderr] 9: 0x556beb85b130 - std::rt::lang_start::{{closure}}::h9eb31e2fd18e52aa [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 10: 0x556beb86b553 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 11: 0x556beb86b553 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 12: 0x556beb87252a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 13: 0x556beb86c00d - std::panicking::try::h4af22d9cb0afa351 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 14: 0x556beb86c00d - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 15: 0x556beb86c00d - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 16: 0x556beb85b109 - std::rt::lang_start::h9dfc7543921d9724 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 17: 0x556beb85c1ba - main [INFO] [stderr] 18: 0x7f6f1c41e2e1 - __libc_start_main [INFO] [stderr] 19: 0x556beb8479ea - _start [INFO] [stderr] 20: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "68b10bd0c1307a65b38a4f0d24a886d1d2a63683ad626961717288cfd6c7603f"` [INFO] running `"docker" "rm" "-f" "68b10bd0c1307a65b38a4f0d24a886d1d2a63683ad626961717288cfd6c7603f"` [INFO] [stdout] 68b10bd0c1307a65b38a4f0d24a886d1d2a63683ad626961717288cfd6c7603f