[INFO] fetching crate earmuffs 0.1.0...
[INFO] documenting earmuffs-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate earmuffs 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate earmuffs 0.1.0 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 crates.io crate earmuffs 0.1.0
[INFO] finished tweaking crates.io crate earmuffs 0.1.0
[INFO] tweaked toml for crates.io crate earmuffs 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce320e43a83339285da9e00c8cce324e08bac47f7e97f33e7069647e51b81a0c
[INFO] running `Command { std: "docker" "start" "-a" "ce320e43a83339285da9e00c8cce324e08bac47f7e97f33e7069647e51b81a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce320e43a83339285da9e00c8cce324e08bac47f7e97f33e7069647e51b81a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce320e43a83339285da9e00c8cce324e08bac47f7e97f33e7069647e51b81a0c", kill_on_drop: false }`
[INFO] [stdout] ce320e43a83339285da9e00c8cce324e08bac47f7e97f33e7069647e51b81a0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 850e097d7c698df407760e66c4db9f8639961542736198705315c466f3078870
[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" "850e097d7c698df407760e66c4db9f8639961542736198705315c466f3078870", kill_on_drop: false }`
[INFO] [stderr]  Documenting earmuffs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "850e097d7c698df407760e66c4db9f8639961542736198705315c466f3078870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850e097d7c698df407760e66c4db9f8639961542736198705315c466f3078870", kill_on_drop: false }`
[INFO] [stdout] 850e097d7c698df407760e66c4db9f8639961542736198705315c466f3078870
