[INFO] crate ico_math 0.1.6 is already in cache
[INFO] testing ico_math-0.1.6 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate ico_math 0.1.6 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate ico_math 0.1.6 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ico_math 0.1.6
[INFO] finished tweaking crates.io crate ico_math 0.1.6
[INFO] tweaked toml for crates.io crate ico_math 0.1.6 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 11d55075cc1d11b923f7913e50c6893711c7f27016e10b7c2ce11895a4365006
[INFO] running `"docker" "start" "-a" "11d55075cc1d11b923f7913e50c6893711c7f27016e10b7c2ce11895a4365006"`
[INFO] [stderr]    Compiling ico_math v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "11d55075cc1d11b923f7913e50c6893711c7f27016e10b7c2ce11895a4365006"`
[INFO] running `"docker" "rm" "-f" "11d55075cc1d11b923f7913e50c6893711c7f27016e10b7c2ce11895a4365006"`
[INFO] [stdout] 11d55075cc1d11b923f7913e50c6893711c7f27016e10b7c2ce11895a4365006
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] b861587614a0ea3cfb7ecddf74ed5cec60a0224e005212517e1aa5720766943e
[INFO] running `"docker" "start" "-a" "b861587614a0ea3cfb7ecddf74ed5cec60a0224e005212517e1aa5720766943e"`
[INFO] [stderr]    Compiling ico_math v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `ico_math`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name ico_math src/lib.rs --color never --emit=dep-info,link -C opt-level=3 -C debuginfo=2 -C debug-assertions=on --test --cfg 'feature="default"' --cfg 'feature="use-std"' -C metadata=ba7fae15b7aa6c6a -C extra-filename=-ba7fae15b7aa6c6a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "b861587614a0ea3cfb7ecddf74ed5cec60a0224e005212517e1aa5720766943e"`
[INFO] running `"docker" "rm" "-f" "b861587614a0ea3cfb7ecddf74ed5cec60a0224e005212517e1aa5720766943e"`
[INFO] [stdout] b861587614a0ea3cfb7ecddf74ed5cec60a0224e005212517e1aa5720766943e