[INFO] fetching crate cargo-docgen 0.1.3...
[INFO] documenting cargo-docgen-0.1.3 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate cargo-docgen 0.1.3 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate cargo-docgen 0.1.3 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-docgen 0.1.3
[INFO] finished tweaking crates.io crate cargo-docgen 0.1.3
[INFO] tweaked toml for crates.io crate cargo-docgen 0.1.3 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99469856f333e1f4307c4df323cf5e6c2031692b8f36058be10416a865be7b1b
[INFO] running `Command { std: "docker" "start" "-a" "99469856f333e1f4307c4df323cf5e6c2031692b8f36058be10416a865be7b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99469856f333e1f4307c4df323cf5e6c2031692b8f36058be10416a865be7b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99469856f333e1f4307c4df323cf5e6c2031692b8f36058be10416a865be7b1b", kill_on_drop: false }`
[INFO] [stdout] 99469856f333e1f4307c4df323cf5e6c2031692b8f36058be10416a865be7b1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0858cd5ae2116e0167de4ad861d372f412c191eb53068b423bc9848339286619
[INFO] running `Command { std: "docker" "start" "-a" "0858cd5ae2116e0167de4ad861d372f412c191eb53068b423bc9848339286619", kill_on_drop: false }`
[INFO] [stderr]     Checking easy-shortcuts v0.2.0
[INFO] [stderr]     Checking lapp v0.3.1
[INFO] [stderr]  Documenting cargo-docgen v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "0858cd5ae2116e0167de4ad861d372f412c191eb53068b423bc9848339286619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0858cd5ae2116e0167de4ad861d372f412c191eb53068b423bc9848339286619", kill_on_drop: false }`
[INFO] [stdout] 0858cd5ae2116e0167de4ad861d372f412c191eb53068b423bc9848339286619