[INFO] fetching crate mlcr 0.2.0...
[INFO] documenting mlcr-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mlcr 0.2.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate mlcr 0.2.0 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 mlcr 0.2.0
[INFO] finished tweaking crates.io crate mlcr 0.2.0
[INFO] tweaked toml for crates.io crate mlcr 0.2.0 written to /workspace/builds/worker-15/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] f899e05dc3e030d670d0ce2a273f2de3f29811304ce4a1d0c6380c6d836045f8
[INFO] running `Command { std: "docker" "start" "-a" "f899e05dc3e030d670d0ce2a273f2de3f29811304ce4a1d0c6380c6d836045f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f899e05dc3e030d670d0ce2a273f2de3f29811304ce4a1d0c6380c6d836045f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f899e05dc3e030d670d0ce2a273f2de3f29811304ce4a1d0c6380c6d836045f8", kill_on_drop: false }`
[INFO] [stdout] f899e05dc3e030d670d0ce2a273f2de3f29811304ce4a1d0c6380c6d836045f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] bd14f6c7021965e5d3ddfab5b9ab702600cc8c205a837f3aa51dead5e07d6f2f
[INFO] running `Command { std: "docker" "start" "-a" "bd14f6c7021965e5d3ddfab5b9ab702600cc8c205a837f3aa51dead5e07d6f2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking nn v0.1.6
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]  Documenting mlcr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "bd14f6c7021965e5d3ddfab5b9ab702600cc8c205a837f3aa51dead5e07d6f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd14f6c7021965e5d3ddfab5b9ab702600cc8c205a837f3aa51dead5e07d6f2f", kill_on_drop: false }`
[INFO] [stdout] bd14f6c7021965e5d3ddfab5b9ab702600cc8c205a837f3aa51dead5e07d6f2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] bccbb15196b0bc8b5fcdde4193631e26230cf6f007bec3d750af144e3c08a5e5
[INFO] running `Command { std: "docker" "start" "-a" "bccbb15196b0bc8b5fcdde4193631e26230cf6f007bec3d750af144e3c08a5e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking nn v0.1.6
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]  Documenting mlcr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "bccbb15196b0bc8b5fcdde4193631e26230cf6f007bec3d750af144e3c08a5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bccbb15196b0bc8b5fcdde4193631e26230cf6f007bec3d750af144e3c08a5e5", kill_on_drop: false }`
[INFO] [stdout] bccbb15196b0bc8b5fcdde4193631e26230cf6f007bec3d750af144e3c08a5e5