[INFO] cloning repository https://github.com/compass-rs/compass
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/compass-rs/compass" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcompass-rs%2Fcompass", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcompass-rs%2Fcompass'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53c4a9681cb263bd7ed6c501e4544031cab2b67a
[INFO] testing compass-rs/compass against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcompass-rs%2Fcompass" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/compass-rs/compass on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/compass-rs/compass
[INFO] finished tweaking git repo https://github.com/compass-rs/compass
[INFO] tweaked toml for git repo https://github.com/compass-rs/compass written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/compass-rs/compass already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sass-rs v0.0.17
[INFO] [stderr]   Downloaded compass-sprite v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 852d14acd7be34587118d06937df4c7086df75d1f9ac294304d0dff77b367bb5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "852d14acd7be34587118d06937df4c7086df75d1f9ac294304d0dff77b367bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "852d14acd7be34587118d06937df4c7086df75d1f9ac294304d0dff77b367bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "852d14acd7be34587118d06937df4c7086df75d1f9ac294304d0dff77b367bb5", kill_on_drop: false }`
[INFO] [stdout] 852d14acd7be34587118d06937df4c7086df75d1f9ac294304d0dff77b367bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 132210914f70ff65cc1e576574550cdbea31b7942d5de3729f02a2b8c7a106d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "132210914f70ff65cc1e576574550cdbea31b7942d5de3729f02a2b8c7a106d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling enum_primitive v0.0.1
[INFO] [stderr] error: could not compile `num-rational`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name num_rational --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-rational-0.3.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="num-bigint"' --cfg 'feature="num-bigint-std"' --cfg 'feature="std"' -C metadata=d0260a756e4a8598 -C extra-filename=-d0260a756e4a8598 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-8879c5bf7b556e0f.rmeta --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-cce38880b48bf9af.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-ac465bc6de999387.rmeta --cap-lints allow --cap-lints=warn --cfg has_int_exp_fmt` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "132210914f70ff65cc1e576574550cdbea31b7942d5de3729f02a2b8c7a106d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "132210914f70ff65cc1e576574550cdbea31b7942d5de3729f02a2b8c7a106d9", kill_on_drop: false }`
[INFO] [stdout] 132210914f70ff65cc1e576574550cdbea31b7942d5de3729f02a2b8c7a106d9