[INFO] updating cached repository https://github.com/bunnymatic/histogram-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e785041e235e03fbec69320e6803972576fde4d
[INFO] documenting bunnymatic/histogram-rust/5e785041e235e03fbec69320e6803972576fde4d against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbunnymatic%2Fhistogram-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bunnymatic/histogram-rust on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bunnymatic/histogram-rust
[INFO] finished tweaking git repo https://github.com/bunnymatic/histogram-rust
[INFO] tweaked toml for git repo https://github.com/bunnymatic/histogram-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/bunnymatic/histogram-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2c077b34d6edc80ced3745cc73b8fbd6c66638f1fc3e0e159cf498de72511c5
[INFO] running `Command { std: "docker" "start" "-a" "d2c077b34d6edc80ced3745cc73b8fbd6c66638f1fc3e0e159cf498de72511c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2c077b34d6edc80ced3745cc73b8fbd6c66638f1fc3e0e159cf498de72511c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c077b34d6edc80ced3745cc73b8fbd6c66638f1fc3e0e159cf498de72511c5", kill_on_drop: false }`
[INFO] [stdout] d2c077b34d6edc80ced3745cc73b8fbd6c66638f1fc3e0e159cf498de72511c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bebcceeb98d706f05c4b674d4f3d999bcf77570f5aa1c5b2dfbdf58457e3370
[INFO] running `Command { std: "docker" "start" "-a" "5bebcceeb98d706f05c4b674d4f3d999bcf77570f5aa1c5b2dfbdf58457e3370", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling structopt-derive v0.2.17
[INFO] [stderr]     Checking structopt v0.2.17
[INFO] [stderr]  Documenting histogram v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let words = line.unwrap().split(/\s+/);
[INFO] [stdout]    |                                          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `histogram`
[INFO] [stdout] error: expected expression, found `/`
[INFO] [stdout]   --> src/main.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let words = line.unwrap().split(/\s+/);
[INFO] [stdout]    |                                         ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name histogram src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=e9c0b0f6da7d5e6b -L dependency=/opt/rustwide/target/debug/deps --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-bbc1038957da1f48.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "5bebcceeb98d706f05c4b674d4f3d999bcf77570f5aa1c5b2dfbdf58457e3370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bebcceeb98d706f05c4b674d4f3d999bcf77570f5aa1c5b2dfbdf58457e3370", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: Could not kill running container 5bebcceeb98d706f05c4b674d4f3d999bcf77570f5aa1c5b2dfbdf58457e3370, cannot remove - tried to kill container, but did not receive an exit event
[ERROR] failed to delete container 5bebcceeb98d706f05c4b674d4f3d999bcf77570f5aa1c5b2dfbdf58457e3370
[ERROR] caused by: command failed: exit status: 1