[INFO] fetching crate qip 0.15.3...
[INFO] testing qip-0.15.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate qip 0.15.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate qip 0.15.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qip 0.15.3
[INFO] finished tweaking crates.io crate qip 0.15.3
[INFO] tweaked toml for crates.io crate qip 0.15.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate qip 0.15.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9311559d33d5c78f5f49dbc510054f47cafd070ce862fe7f0e5060f19029048
[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" "c9311559d33d5c78f5f49dbc510054f47cafd070ce862fe7f0e5060f19029048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9311559d33d5c78f5f49dbc510054f47cafd070ce862fe7f0e5060f19029048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9311559d33d5c78f5f49dbc510054f47cafd070ce862fe7f0e5060f19029048", kill_on_drop: false }`
[INFO] [stdout] c9311559d33d5c78f5f49dbc510054f47cafd070ce862fe7f0e5060f19029048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52864a55559c17354aa80fd0640c29ff309d22d4a7c8d04a048c10fa0f73f5f2
[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" "52864a55559c17354aa80fd0640c29ff309d22d4a7c8d04a048c10fa0f73f5f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.4.1
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling qip v0.15.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.47s
[INFO] running `Command { std: "docker" "inspect" "52864a55559c17354aa80fd0640c29ff309d22d4a7c8d04a048c10fa0f73f5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52864a55559c17354aa80fd0640c29ff309d22d4a7c8d04a048c10fa0f73f5f2", kill_on_drop: false }`
[INFO] [stdout] 52864a55559c17354aa80fd0640c29ff309d22d4a7c8d04a048c10fa0f73f5f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ff63a2aaa37402e1654838ebb497df94f52ae3c508e882eaa0478054ea76c27
[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" "4ff63a2aaa37402e1654838ebb497df94f52ae3c508e882eaa0478054ea76c27", kill_on_drop: false }`
[INFO] [stderr]    Compiling qip v0.15.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `qip`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name qip --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="parallel"' --cfg 'feature="rayon"' -C metadata=0dc50493da74d89e -C extra-filename=-0dc50493da74d89e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern num=/opt/rustwide/target/debug/deps/libnum-e5b1fd8a4bee175e.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-5ab5f6411868649c.rlib --extern rayon=/opt/rustwide/target/debug/deps/librayon-3420e84d71a91800.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 `Command { std: "docker" "inspect" "4ff63a2aaa37402e1654838ebb497df94f52ae3c508e882eaa0478054ea76c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff63a2aaa37402e1654838ebb497df94f52ae3c508e882eaa0478054ea76c27", kill_on_drop: false }`
[INFO] [stdout] 4ff63a2aaa37402e1654838ebb497df94f52ae3c508e882eaa0478054ea76c27