[INFO] fetching crate arg 0.3.0...
[INFO] documenting arg-0.3.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate arg 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate arg 0.3.0 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 arg 0.3.0
[INFO] finished tweaking crates.io crate arg 0.3.0
[INFO] tweaked toml for crates.io crate arg 0.3.0 written to /workspace/builds/worker-13/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 3a41bc7d3f717a682e1027d7c62b1746ae01a1d5925c196d1f792f77f37beeac
[INFO] running `Command { std: "docker" "start" "-a" "3a41bc7d3f717a682e1027d7c62b1746ae01a1d5925c196d1f792f77f37beeac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a41bc7d3f717a682e1027d7c62b1746ae01a1d5925c196d1f792f77f37beeac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a41bc7d3f717a682e1027d7c62b1746ae01a1d5925c196d1f792f77f37beeac", kill_on_drop: false }`
[INFO] [stdout] 3a41bc7d3f717a682e1027d7c62b1746ae01a1d5925c196d1f792f77f37beeac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 09998f350a315900f1febf6275147e81234c76345ee0d61f3e2c076b3e861c48
[INFO] running `Command { std: "docker" "start" "-a" "09998f350a315900f1febf6275147e81234c76345ee0d61f3e2c076b3e861c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling tabwriter v1.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling arg-derive v0.3.4
[INFO] [stderr]  Documenting arg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.99s
[INFO] running `Command { std: "docker" "inspect" "09998f350a315900f1febf6275147e81234c76345ee0d61f3e2c076b3e861c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09998f350a315900f1febf6275147e81234c76345ee0d61f3e2c076b3e861c48", kill_on_drop: false }`
[INFO] [stdout] 09998f350a315900f1febf6275147e81234c76345ee0d61f3e2c076b3e861c48
