[INFO] fetching crate reverse 0.2.2...
[INFO] documenting reverse-0.2.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate reverse 0.2.2 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate reverse 0.2.2 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reverse 0.2.2
[INFO] finished tweaking crates.io crate reverse 0.2.2
[INFO] tweaked toml for crates.io crate reverse 0.2.2 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate crates.io crate reverse 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded approx_eq v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f64b8238f04b791f55a8628188322a1e5f52ffd5c36f79113fc7abf348da051
[INFO] running `Command { std: "docker" "start" "-a" "9f64b8238f04b791f55a8628188322a1e5f52ffd5c36f79113fc7abf348da051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f64b8238f04b791f55a8628188322a1e5f52ffd5c36f79113fc7abf348da051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f64b8238f04b791f55a8628188322a1e5f52ffd5c36f79113fc7abf348da051", kill_on_drop: false }`
[INFO] [stdout] 9f64b8238f04b791f55a8628188322a1e5f52ffd5c36f79113fc7abf348da051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc3cb99631268b5669db4268263a639f651ef145daa4f1ee7838a1927c5c867
[INFO] running `Command { std: "docker" "start" "-a" "dbc3cb99631268b5669db4268263a639f651ef145daa4f1ee7838a1927c5c867", 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] [stderr]  Documenting reverse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "dbc3cb99631268b5669db4268263a639f651ef145daa4f1ee7838a1927c5c867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc3cb99631268b5669db4268263a639f651ef145daa4f1ee7838a1927c5c867", kill_on_drop: false }`
[INFO] [stdout] dbc3cb99631268b5669db4268263a639f651ef145daa4f1ee7838a1927c5c867
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] c22514eed89ccfddb94b8e067c5d74bdd443ebec30ac56ae1a29b3489ea9e3b7
[INFO] running `Command { std: "docker" "start" "-a" "c22514eed89ccfddb94b8e067c5d74bdd443ebec30ac56ae1a29b3489ea9e3b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting reverse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "c22514eed89ccfddb94b8e067c5d74bdd443ebec30ac56ae1a29b3489ea9e3b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c22514eed89ccfddb94b8e067c5d74bdd443ebec30ac56ae1a29b3489ea9e3b7", kill_on_drop: false }`
[INFO] [stdout] c22514eed89ccfddb94b8e067c5d74bdd443ebec30ac56ae1a29b3489ea9e3b7