[INFO] cloning repository https://github.com/hhatto/wwup-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hhatto/wwup-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhhatto%2Fwwup-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhhatto%2Fwwup-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ef78053e5a0447048fafc7824dd7adb64c60c12
[INFO] documenting hhatto/wwup-in-rust against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhhatto%2Fwwup-in-rust" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hhatto/wwup-in-rust on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hhatto/wwup-in-rust
[INFO] finished tweaking git repo https://github.com/hhatto/wwup-in-rust
[INFO] tweaked toml for git repo https://github.com/hhatto/wwup-in-rust written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/hhatto/wwup-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prctl v1.0.0
[INFO] [stderr]   Downloaded chan v0.1.19
[INFO] [stderr]   Downloaded bit-set v0.4.0
[INFO] [stderr]   Downloaded bit-vec v0.4.3
[INFO] [stderr]   Downloaded nix v0.7.0
[INFO] [stderr]   Downloaded chan-signal v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c080e28d884add2114af4e05bbda104c4f0eace90fdfe6d767095bdd2d1b437
[INFO] running `Command { std: "docker" "start" "-a" "9c080e28d884add2114af4e05bbda104c4f0eace90fdfe6d767095bdd2d1b437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c080e28d884add2114af4e05bbda104c4f0eace90fdfe6d767095bdd2d1b437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c080e28d884add2114af4e05bbda104c4f0eace90fdfe6d767095bdd2d1b437", kill_on_drop: false }`
[INFO] [stdout] 9c080e28d884add2114af4e05bbda104c4f0eace90fdfe6d767095bdd2d1b437
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba2c4b06d7b300add8b868ee48d1ba241f8f033b387e399cba752fd57b741703
[INFO] running `Command { std: "docker" "start" "-a" "ba2c4b06d7b300add8b868ee48d1ba241f8f033b387e399cba752fd57b741703", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]     Checking chan-signal v0.2.0
[INFO] [stderr]     Checking prctl v1.0.0
[INFO] [stderr]  Documenting wwup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 4_processes_have_parents src/4_processes_have_parents.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-b2acdc448d9f7c33.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-f2e639693234a69d.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-c9d76235c1739fdd.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-b05314ca20e98281.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-d02e270e0387c04e.rmeta --cap-lints=warn --crate-version 0.1.0` (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" "ba2c4b06d7b300add8b868ee48d1ba241f8f033b387e399cba752fd57b741703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2c4b06d7b300add8b868ee48d1ba241f8f033b387e399cba752fd57b741703", kill_on_drop: false }`
[INFO] [stdout] ba2c4b06d7b300add8b868ee48d1ba241f8f033b387e399cba752fd57b741703
