[INFO] fetching crate async-readline 0.1.0...
[INFO] documenting async-readline-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate async-readline 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async-readline 0.1.0 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 async-readline 0.1.0
[INFO] finished tweaking crates.io crate async-readline 0.1.0
[INFO] tweaked toml for crates.io crate async-readline 0.1.0 written to /workspace/builds/worker-2/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b4367d5607d881b48bb58de4f4c06de06b51eae1c76b26e89f28566e43f58bba
[INFO] running `Command { std: "docker" "start" "-a" "b4367d5607d881b48bb58de4f4c06de06b51eae1c76b26e89f28566e43f58bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4367d5607d881b48bb58de4f4c06de06b51eae1c76b26e89f28566e43f58bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4367d5607d881b48bb58de4f4c06de06b51eae1c76b26e89f28566e43f58bba", kill_on_drop: false }`
[INFO] [stdout] b4367d5607d881b48bb58de4f4c06de06b51eae1c76b26e89f28566e43f58bba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] cfd7772739b2cad3bd7eade109ec88a3e142b1fa2fc4097fd8e72d2833b87432
[INFO] running `Command { std: "docker" "start" "-a" "cfd7772739b2cad3bd7eade109ec88a3e142b1fa2fc4097fd8e72d2833b87432", 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]    Compiling semver v0.1.20
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking tokio v0.0.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]  Documenting async-readline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "cfd7772739b2cad3bd7eade109ec88a3e142b1fa2fc4097fd8e72d2833b87432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd7772739b2cad3bd7eade109ec88a3e142b1fa2fc4097fd8e72d2833b87432", kill_on_drop: false }`
[INFO] [stdout] cfd7772739b2cad3bd7eade109ec88a3e142b1fa2fc4097fd8e72d2833b87432
