[INFO] fetching crate conrod_prompt 0.4.1...
[INFO] documenting conrod_prompt-0.4.1 against 1.55.0 for beta-1.56-rustdoc-1
[INFO] extracting crate conrod_prompt 0.4.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate conrod_prompt 0.4.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate conrod_prompt 0.4.1
[INFO] finished tweaking crates.io crate conrod_prompt 0.4.1
[INFO] tweaked toml for crates.io crate conrod_prompt 0.4.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate conrod_prompt 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f3bee11607b7f1d55e0c236138d20a0702a64ba509e271dbca242d0f37d82a3
[INFO] running `Command { std: "docker" "start" "-a" "4f3bee11607b7f1d55e0c236138d20a0702a64ba509e271dbca242d0f37d82a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f3bee11607b7f1d55e0c236138d20a0702a64ba509e271dbca242d0f37d82a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f3bee11607b7f1d55e0c236138d20a0702a64ba509e271dbca242d0f37d82a3", kill_on_drop: false }`
[INFO] [stdout] 4f3bee11607b7f1d55e0c236138d20a0702a64ba509e271dbca242d0f37d82a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e82e2bc1d5e169c03647f7c38c2872199f50b8cd161a0e0ce3d9ec00fd77d47d
[INFO] running `Command { std: "docker" "start" "-a" "e82e2bc1d5e169c03647f7c38c2872199f50b8cd161a0e0ce3d9ec00fd77d47d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking daggy v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling conrod_derive v0.73.0
[INFO] [stderr]     Checking x11-clipboard v0.5.2
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.6.6
[INFO] [stderr]     Checking smithay-clipboard v0.4.0
[INFO] [stderr]     Checking copypasta v0.6.3
[INFO] [stderr]     Checking conrod_core v0.73.0
[INFO] [stderr]  Documenting conrod_prompt v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "e82e2bc1d5e169c03647f7c38c2872199f50b8cd161a0e0ce3d9ec00fd77d47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e82e2bc1d5e169c03647f7c38c2872199f50b8cd161a0e0ce3d9ec00fd77d47d", kill_on_drop: false }`
[INFO] [stdout] e82e2bc1d5e169c03647f7c38c2872199f50b8cd161a0e0ce3d9ec00fd77d47d