[INFO] crate polylog 0.3.0 is already in cache
[INFO] testing polylog-0.3.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate polylog 0.3.0 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate polylog 0.3.0 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 polylog 0.3.0
[INFO] finished tweaking crates.io crate polylog 0.3.0
[INFO] tweaked toml for crates.io crate polylog 0.3.0 written to work/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 56651e0a97080ac82cf374e4f5f23e3f5c5707d11865931893192fa8515c0a56
[INFO] running `"docker" "start" "-a" "56651e0a97080ac82cf374e4f5f23e3f5c5707d11865931893192fa8515c0a56"`
[INFO] [stderr]    Compiling polylog v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "56651e0a97080ac82cf374e4f5f23e3f5c5707d11865931893192fa8515c0a56"`
[INFO] running `"docker" "rm" "-f" "56651e0a97080ac82cf374e4f5f23e3f5c5707d11865931893192fa8515c0a56"`
[INFO] [stdout] 56651e0a97080ac82cf374e4f5f23e3f5c5707d11865931893192fa8515c0a56
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] feb423c326dafca06c785004c084da412cf16c95f86ed5f326da5721837372b9
[INFO] running `"docker" "start" "-a" "feb423c326dafca06c785004c084da412cf16c95f86ed5f326da5721837372b9"`
[INFO] [stderr]    Compiling polylog v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `polylog`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name li2 tests/li2.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=008a1b5100824d02 -C extra-filename=-008a1b5100824d02 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern num=/opt/rustwide/target/debug/deps/libnum-604c95a62156fbeb.rlib --extern polylog=/opt/rustwide/target/debug/deps/libpolylog-44982df1ba03c22e.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-2d809f82e1afeef8.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "feb423c326dafca06c785004c084da412cf16c95f86ed5f326da5721837372b9"`
[INFO] running `"docker" "rm" "-f" "feb423c326dafca06c785004c084da412cf16c95f86ed5f326da5721837372b9"`
[INFO] [stdout] feb423c326dafca06c785004c084da412cf16c95f86ed5f326da5721837372b9