[INFO] cloning repository https://github.com/Cristiandi/course-rust-in-motion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cristiandi/course-rust-in-motion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCristiandi%2Fcourse-rust-in-motion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCristiandi%2Fcourse-rust-in-motion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 812eadf4584a270a9207a8e3797e5afc88d2993b
[INFO] documenting Cristiandi/course-rust-in-motion 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%2FCristiandi%2Fcourse-rust-in-motion" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Cristiandi/course-rust-in-motion 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/Cristiandi/course-rust-in-motion
[INFO] finished tweaking git repo https://github.com/Cristiandi/course-rust-in-motion
[INFO] tweaked toml for git repo https://github.com/Cristiandi/course-rust-in-motion written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Cristiandi/course-rust-in-motion 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] e40050d9cdb401427e4fb1a63b55c58b4f5e0995c8a5ed37d63218c653f0140e
[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" "e40050d9cdb401427e4fb1a63b55c58b4f5e0995c8a5ed37d63218c653f0140e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e40050d9cdb401427e4fb1a63b55c58b4f5e0995c8a5ed37d63218c653f0140e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e40050d9cdb401427e4fb1a63b55c58b4f5e0995c8a5ed37d63218c653f0140e", kill_on_drop: false }`
[INFO] [stdout] e40050d9cdb401427e4fb1a63b55c58b4f5e0995c8a5ed37d63218c653f0140e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f10e31106d0081e9a9084cecc950da502ec7bc1624452692d879dddcaac18eb2
[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" "f10e31106d0081e9a9084cecc950da502ec7bc1624452692d879dddcaac18eb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling backtrace v0.3.18
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]  Documenting myproject v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `myproject`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name functions src/unit-1/05_functions.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-554862abd170afce.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8ae5792da481cc3d.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-962e26a16e339755.rmeta --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-a39d50422617918f.so --extern quick_error=/opt/rustwide/target/debug/deps/libquick_error-41ffc3cf2a681b80.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f1f2eec25053d02b.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-529def51d5ee2d95.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-83cf5160763c40f4.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" "f10e31106d0081e9a9084cecc950da502ec7bc1624452692d879dddcaac18eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f10e31106d0081e9a9084cecc950da502ec7bc1624452692d879dddcaac18eb2", kill_on_drop: false }`
[INFO] [stdout] f10e31106d0081e9a9084cecc950da502ec7bc1624452692d879dddcaac18eb2
