[INFO] fetching crate conrod_wgpu 0.74.0...
[INFO] documenting conrod_wgpu-0.74.0 against 1.55.0 for beta-1.56-rustdoc-1
[INFO] extracting crate conrod_wgpu 0.74.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate conrod_wgpu 0.74.0 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_wgpu 0.74.0
[INFO] finished tweaking crates.io crate conrod_wgpu 0.74.0
[INFO] tweaked toml for crates.io crate conrod_wgpu 0.74.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate conrod_wgpu 0.74.0 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] f23cb738eb522fa60eb40b05df7e69dce879926111bf8afc28a0e3efa1ffaace
[INFO] running `Command { std: "docker" "start" "-a" "f23cb738eb522fa60eb40b05df7e69dce879926111bf8afc28a0e3efa1ffaace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f23cb738eb522fa60eb40b05df7e69dce879926111bf8afc28a0e3efa1ffaace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f23cb738eb522fa60eb40b05df7e69dce879926111bf8afc28a0e3efa1ffaace", kill_on_drop: false }`
[INFO] [stdout] f23cb738eb522fa60eb40b05df7e69dce879926111bf8afc28a0e3efa1ffaace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 3a6ece4f230c536a7e5a1b5c4314077e8f56a35f6653152c90ebfb9ce5a29a69
[INFO] running `Command { std: "docker" "start" "-a" "3a6ece4f230c536a7e5a1b5c4314077e8f56a35f6653152c90ebfb9ce5a29a69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling drm-fourcc v2.1.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking renderdoc-sys v0.7.1
[INFO] [stderr]     Checking glow v0.9.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking profiling v1.0.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking stb_truetype v0.3.1
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[INFO] [stderr]     Checking ash v0.32.1
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[INFO] [stderr]     Checking wgpu-types v0.9.0
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
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[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking gfx-renderdoc v0.1.0
[INFO] [stderr]    Compiling wgpu-core v0.9.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking gpu-descriptor v0.1.1
[INFO] [stderr]     Checking daggy v0.5.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking rose_tree v0.2.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling conrod_derive v0.74.0
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking naga v0.5.0
[INFO] [stderr]     Checking x11-clipboard v0.5.2
[INFO] [stderr]     Checking serde v1.0.126
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[INFO] [stderr]     Checking external-memory v0.0.1
[INFO] [stderr]     Checking gfx-hal v0.9.0
[INFO] [stderr]     Checking gfx-backend-vulkan v0.9.0
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[INFO] [stderr]     Checking copypasta v0.6.3
[INFO] [stderr]     Checking conrod_core v0.74.0
[INFO] [stderr]  Documenting conrod_wgpu v0.74.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "3a6ece4f230c536a7e5a1b5c4314077e8f56a35f6653152c90ebfb9ce5a29a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6ece4f230c536a7e5a1b5c4314077e8f56a35f6653152c90ebfb9ce5a29a69", kill_on_drop: false }`
[INFO] [stdout] 3a6ece4f230c536a7e5a1b5c4314077e8f56a35f6653152c90ebfb9ce5a29a69