[INFO] fetching crate err-gen 0.1.4...
[INFO] documenting err-gen-0.1.4 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate err-gen 0.1.4 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate err-gen 0.1.4 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 err-gen 0.1.4
[INFO] finished tweaking crates.io crate err-gen 0.1.4
[INFO] tweaked toml for crates.io crate err-gen 0.1.4 written to /workspace/builds/worker-118/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] [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-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] f6a3e790e0c141b8311d051ff9d7e672b2a6945d202a327133fd6252174eef9b
[INFO] running `Command { std: "docker" "start" "-a" "f6a3e790e0c141b8311d051ff9d7e672b2a6945d202a327133fd6252174eef9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6a3e790e0c141b8311d051ff9d7e672b2a6945d202a327133fd6252174eef9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a3e790e0c141b8311d051ff9d7e672b2a6945d202a327133fd6252174eef9b", kill_on_drop: false }`
[INFO] [stdout] f6a3e790e0c141b8311d051ff9d7e672b2a6945d202a327133fd6252174eef9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 92928f9e8a67df0ed700132dde60e65f389d835a640d8218efde10e038cd04bb
[INFO] running `Command { std: "docker" "start" "-a" "92928f9e8a67df0ed700132dde60e65f389d835a640d8218efde10e038cd04bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]  Documenting err-gen v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.06s
[INFO] running `Command { std: "docker" "inspect" "92928f9e8a67df0ed700132dde60e65f389d835a640d8218efde10e038cd04bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92928f9e8a67df0ed700132dde60e65f389d835a640d8218efde10e038cd04bb", kill_on_drop: false }`
[INFO] [stdout] 92928f9e8a67df0ed700132dde60e65f389d835a640d8218efde10e038cd04bb
