[INFO] fetching crate doc-comment 0.3.3...
[INFO] documenting doc-comment-0.3.3 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate doc-comment 0.3.3 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate doc-comment 0.3.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doc-comment 0.3.3
[INFO] finished tweaking crates.io crate doc-comment 0.3.3
[INFO] tweaked toml for crates.io crate doc-comment 0.3.3 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e926445bc66351f95b85a2dc976fd3eb652a1ef73fc7051fa1ced278b8a7212
[INFO] running `Command { std: "docker" "start" "-a" "7e926445bc66351f95b85a2dc976fd3eb652a1ef73fc7051fa1ced278b8a7212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e926445bc66351f95b85a2dc976fd3eb652a1ef73fc7051fa1ced278b8a7212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e926445bc66351f95b85a2dc976fd3eb652a1ef73fc7051fa1ced278b8a7212", kill_on_drop: false }`
[INFO] [stdout] 7e926445bc66351f95b85a2dc976fd3eb652a1ef73fc7051fa1ced278b8a7212
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92a906f12a70add27c5aa00a1eecf18ce402718b46c946f3fec322eb1cb17414
[INFO] running `Command { std: "docker" "start" "-a" "92a906f12a70add27c5aa00a1eecf18ce402718b46c946f3fec322eb1cb17414", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling doc-comment v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting doc-comment v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "92a906f12a70add27c5aa00a1eecf18ce402718b46c946f3fec322eb1cb17414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a906f12a70add27c5aa00a1eecf18ce402718b46c946f3fec322eb1cb17414", kill_on_drop: false }`
[INFO] [stdout] 92a906f12a70add27c5aa00a1eecf18ce402718b46c946f3fec322eb1cb17414
