[INFO] updating cached repository jslone/crust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jslone/crust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jslone/crust" "work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/jslone/crust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/jslone/crust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jslone/crust" "work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/jslone/crust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/jslone/crust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dff9c6ac29b0881eef561258fdfd24a952012aae
[INFO] sha for GitHub repo jslone/crust: dff9c6ac29b0881eef561258fdfd24a952012aae
[INFO] validating manifest of jslone/crust on toolchain master#7840a0b753a065a41999f1fb6028f67d33e3fdd5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jslone/crust on toolchain try#6a9f0b6cc40687e25f9d772e3b10bab335c63853
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+6a9f0b6cc40687e25f9d772e3b10bab335c63853-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jslone/crust
[INFO] removed path dependency libc from jslone/crust
[INFO] finished frobbing jslone/crust
[INFO] frobbed toml for jslone/crust written to work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/jslone/crust/Cargo.toml
[INFO] started frobbing jslone/crust
[INFO] removed path dependency libc from jslone/crust
[INFO] finished frobbing jslone/crust
[INFO] frobbed toml for jslone/crust written to work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/jslone/crust/Cargo.toml
[INFO] crate jslone/crust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/jslone/crust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+6a9f0b6cc40687e25f9d772e3b10bab335c63853-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+6a9f0b6cc40687e25f9d772e3b10bab335c63853-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jslone/crust against try#6a9f0b6cc40687e25f9d772e3b10bab335c63853 for pr-60466
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60466/worker-4/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/jslone/crust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+6a9f0b6cc40687e25f9d772e3b10bab335c63853-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d22218d33fd234e6c3dddbb18c73174914e89357e5d1b2110138fa5349bde17d
[INFO] running `"docker" "start" "-a" "d22218d33fd234e6c3dddbb18c73174914e89357e5d1b2110138fa5349bde17d"`
[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-5763d30ff285b859/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Box<Any>', /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:     0x55e29369cd2a - backtrace::backtrace::libunwind::trace::h6a914de936d19d32
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.25/src/backtrace/libunwind.rs:97
[INFO] [stderr]    1:     0x55e29369cd2a - backtrace::backtrace::trace_unsynchronized::hdc7962958aac26ca
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.25/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55e29369cd2a - std::sys_common::backtrace::_print::h4636cc90ad6e9cc8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55e29369cd2a - std::sys_common::backtrace::print::h5e5a912d150b774f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55e29369cd2a - std::panicking::default_hook::{{closure}}::h5fcf878e4219f22e
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    5:     0x55e29369ca2b - std::panicking::default_hook::hff6517781036cbe2
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    6:     0x55e29369d3ef - std::panicking::rust_panic_with_hook::h22be939073562a0c
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    7:     0x55e293682397 - std::panicking::begin_panic::hd274b838a1636aff
[INFO] [stderr]                                at /rustc/6a9f0b6cc40687e25f9d772e3b10bab335c63853/src/libstd/panicking.rs:408
[INFO] [stderr]    8:     0x55e2936870a7 - build_script_build::main::h2d0e80cdb4574fb8
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-libcore-0.0.3/./build.rs:43
[INFO] [stderr]    9:     0x55e2936860bf - std::rt::lang_start::{{closure}}::h4962e05bf76d5f6b
[INFO] [stderr]                                at /rustc/6a9f0b6cc40687e25f9d772e3b10bab335c63853/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x55e29369ce42 - std::rt::lang_start_internal::{{closure}}::h7a046000d751c604
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   11:     0x55e29369ce42 - std::panicking::try::do_call::h7822f6600116a051
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   12:     0x55e2936a3f29 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   13:     0x55e29369d8fc - std::panicking::try::h358b691e2e16967b
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]   14:     0x55e29369d8fc - std::panic::catch_unwind::haa1f6d1877145dfc
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   15:     0x55e29369d8fc - std::rt::lang_start_internal::hdb0bb82020fa34fd
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x55e293686098 - std::rt::lang_start::hdb728a4ec4f2f8bd
[INFO] [stderr]                                at /rustc/6a9f0b6cc40687e25f9d772e3b10bab335c63853/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x55e293687749 - main
[INFO] [stderr]   18:     0x7fab124e12e0 - __libc_start_main
[INFO] [stderr]   19:     0x55e29367a5b9 - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "d22218d33fd234e6c3dddbb18c73174914e89357e5d1b2110138fa5349bde17d"`
[INFO] running `"docker" "rm" "-f" "d22218d33fd234e6c3dddbb18c73174914e89357e5d1b2110138fa5349bde17d"`
[INFO] [stdout] d22218d33fd234e6c3dddbb18c73174914e89357e5d1b2110138fa5349bde17d