[INFO] cloning repository https://github.com/Hermitter/rust-book-2018-notes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hermitter/rust-book-2018-notes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermitter%2Frust-book-2018-notes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermitter%2Frust-book-2018-notes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcfe4313c342ffaac8443ccb84403c37e23cc419
[INFO] documenting Hermitter/rust-book-2018-notes against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermitter%2Frust-book-2018-notes" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hermitter/rust-book-2018-notes on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hermitter/rust-book-2018-notes
[INFO] finished tweaking git repo https://github.com/Hermitter/rust-book-2018-notes
[INFO] tweaked toml for git repo https://github.com/Hermitter/rust-book-2018-notes written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Hermitter/rust-book-2018-notes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9120a523331ca93ba32b2d8feb580125cc5e71deea7bccaa8e10bab43d382325
[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" "9120a523331ca93ba32b2d8feb580125cc5e71deea7bccaa8e10bab43d382325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9120a523331ca93ba32b2d8feb580125cc5e71deea7bccaa8e10bab43d382325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9120a523331ca93ba32b2d8feb580125cc5e71deea7bccaa8e10bab43d382325", kill_on_drop: false }`
[INFO] [stdout] 9120a523331ca93ba32b2d8feb580125cc5e71deea7bccaa8e10bab43d382325
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a3e678b76ad98449f6728340145900d9294dee24012dcaf17c59108799e0f5a
[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" "2a3e678b76ad98449f6728340145900d9294dee24012dcaf17c59108799e0f5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]  Documenting book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `ice_cream` should have an upper camel case name
[INFO] [stdout]   --> src/bin/ch7_modules/main.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         ice_cream,
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to upper camel case: `IceCream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `cake` should have an upper camel case name
[INFO] [stdout]   --> src/bin/ch7_modules/main.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         cake,
[INFO] [stdout]    |         ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `book`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch7_modules src/bin/ch7_modules/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-795d8685f7a57e07.rmeta --cap-lints=forbid` (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" "2a3e678b76ad98449f6728340145900d9294dee24012dcaf17c59108799e0f5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3e678b76ad98449f6728340145900d9294dee24012dcaf17c59108799e0f5a", kill_on_drop: false }`
[INFO] [stdout] 2a3e678b76ad98449f6728340145900d9294dee24012dcaf17c59108799e0f5a