[INFO] crate ico_math 0.1.6 is already in cache
[INFO] checking ico_math-0.1.6 against beta-2019-10-27 for pr-65897
[INFO] extracting crate ico_math 0.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ico_math 0.1.6 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "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 /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4056d3fe333651d4e88d952f86daaa85e125740c4c9d380632e924ef657141eb
[INFO] running `"docker" "start" "-a" "4056d3fe333651d4e88d952f86daaa85e125740c4c9d380632e924ef657141eb"`
[INFO] [stderr]     Checking 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,metadata -C opt-level=3 -C debuginfo=2 -C debug-assertions=on --test --cfg 'feature="default"' --cfg 'feature="use-std"' -C metadata=084c7e2589882570 -C extra-filename=-084c7e2589882570 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=allow` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "4056d3fe333651d4e88d952f86daaa85e125740c4c9d380632e924ef657141eb"`
[INFO] running `"docker" "rm" "-f" "4056d3fe333651d4e88d952f86daaa85e125740c4c9d380632e924ef657141eb"`
[INFO] [stdout] 4056d3fe333651d4e88d952f86daaa85e125740c4c9d380632e924ef657141eb