[INFO] cloning repository https://github.com/algesten/mung
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/algesten/mung" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgesten%2Fmung", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgesten%2Fmung'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c35e0ebceaa2dfa29429c81509b3cddd83aa929
[INFO] documenting algesten/mung 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%2Falgesten%2Fmung" "/workspace/builds/worker-49/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-49/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/algesten/mung 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/algesten/mung
[INFO] finished tweaking git repo https://github.com/algesten/mung
[INFO] tweaked toml for git repo https://github.com/algesten/mung written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate git repo https://github.com/algesten/mung 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] [stdout] f32d83e7c254084a410b53a15b2c67e6eef8e646773b536e596f9b4947c35dc5
[INFO] running `Command { std: "docker" "start" "-a" "f32d83e7c254084a410b53a15b2c67e6eef8e646773b536e596f9b4947c35dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f32d83e7c254084a410b53a15b2c67e6eef8e646773b536e596f9b4947c35dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32d83e7c254084a410b53a15b2c67e6eef8e646773b536e596f9b4947c35dc5", kill_on_drop: false }`
[INFO] [stdout] f32d83e7c254084a410b53a15b2c67e6eef8e646773b536e596f9b4947c35dc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 9dd0ab0f0833e19ad091eb0f0dadeb18b7d07852fd1219e5e0c376e5d8ff631c
[INFO] running `Command { std: "docker" "start" "-a" "9dd0ab0f0833e19ad091eb0f0dadeb18b7d07852fd1219e5e0c376e5d8ff631c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking version_check v0.9.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking rpassword v5.0.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking uuid v0.8.1
[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-0.6.18/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -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=eb0479953d43e8df -C extra-filename=-eb0479953d43e8df --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" "9dd0ab0f0833e19ad091eb0f0dadeb18b7d07852fd1219e5e0c376e5d8ff631c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dd0ab0f0833e19ad091eb0f0dadeb18b7d07852fd1219e5e0c376e5d8ff631c", kill_on_drop: false }`
[INFO] [stdout] 9dd0ab0f0833e19ad091eb0f0dadeb18b7d07852fd1219e5e0c376e5d8ff631c
