[INFO] cloning repository https://github.com/sampsyo/band
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sampsyo/band" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsampsyo%2Fband", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsampsyo%2Fband'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4187b96d02d2a5bf8a4a5e55f2b612e98d3f5db1
[INFO] documenting sampsyo/band against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsampsyo%2Fband" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sampsyo/band on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sampsyo/band
[INFO] finished tweaking git repo https://github.com/sampsyo/band
[INFO] tweaked toml for git repo https://github.com/sampsyo/band written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sampsyo/band already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72a62ceb62b0fa3444ae1e9ae9f9afc7fa44f1d86d95950269c286228bb79732
[INFO] running `Command { std: "docker" "start" "-a" "72a62ceb62b0fa3444ae1e9ae9f9afc7fa44f1d86d95950269c286228bb79732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72a62ceb62b0fa3444ae1e9ae9f9afc7fa44f1d86d95950269c286228bb79732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a62ceb62b0fa3444ae1e9ae9f9afc7fa44f1d86d95950269c286228bb79732", kill_on_drop: false }`
[INFO] [stdout] 72a62ceb62b0fa3444ae1e9ae9f9afc7fa44f1d86d95950269c286228bb79732
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc8c403703536ec24c8036b70efad98ba52bf562a9b2dda6013507f5ca521cec
[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" "dc8c403703536ec24c8036b70efad98ba52bf562a9b2dda6013507f5ca521cec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling signal-hook v0.3.7
[INFO] [stderr]    Compiling http-types v2.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]     Checking harsh v0.2.1
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking rust-embed-utils v5.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking byte-pool v0.2.2
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking async-dup v1.2.2
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling rust-embed-impl v5.9.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.23/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="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=5c8121566f39070a -C extra-filename=-5c8121566f39070a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (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" "dc8c403703536ec24c8036b70efad98ba52bf562a9b2dda6013507f5ca521cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc8c403703536ec24c8036b70efad98ba52bf562a9b2dda6013507f5ca521cec", kill_on_drop: false }`
[INFO] [stdout] dc8c403703536ec24c8036b70efad98ba52bf562a9b2dda6013507f5ca521cec
