[INFO] fetching crate wgpu-core 0.6.1...
[INFO] documenting wgpu-core-0.6.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate wgpu-core 0.6.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wgpu-core 0.6.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wgpu-core 0.6.1
[INFO] finished tweaking crates.io crate wgpu-core 0.6.1
[INFO] tweaked toml for crates.io crate wgpu-core 0.6.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.6.3
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.6.2
[INFO] [stderr]   Downloaded gfx-auxil v0.6.0
[INFO] [stderr]   Downloaded spirv_cross v0.21.0
[INFO] [stderr]   Downloaded wgpu-types v0.6.1
[INFO] [stderr]   Downloaded gfx-backend-metal v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f803fcb68f68a2314585bc3f301085f240047b6a0f07d72275b8a7c3c430fe09
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f803fcb68f68a2314585bc3f301085f240047b6a0f07d72275b8a7c3c430fe09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f803fcb68f68a2314585bc3f301085f240047b6a0f07d72275b8a7c3c430fe09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f803fcb68f68a2314585bc3f301085f240047b6a0f07d72275b8a7c3c430fe09", kill_on_drop: false }`
[INFO] [stdout] f803fcb68f68a2314585bc3f301085f240047b6a0f07d72275b8a7c3c430fe09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b1f3cf1d6cbd4895b2ec6f87462702a15de38eb318346b07e77cae86327707
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7b1f3cf1d6cbd4895b2ec6f87462702a15de38eb318346b07e77cae86327707", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking inplace_it v0.3.2
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking wgpu-types v0.6.1
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking naga v0.2.0
[INFO] [stderr]     Checking gfx-backend-empty v0.6.0
[INFO] [stderr]     Checking gfx-descriptor v0.2.0
[INFO] [stderr]     Checking gfx-memory v0.2.0
[INFO] [stderr]     Checking gfx-backend-vulkan v0.6.1
[INFO] [stderr]  Documenting wgpu-core v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.50s
[INFO] running `Command { std: "docker" "inspect" "d7b1f3cf1d6cbd4895b2ec6f87462702a15de38eb318346b07e77cae86327707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b1f3cf1d6cbd4895b2ec6f87462702a15de38eb318346b07e77cae86327707", kill_on_drop: false }`
[INFO] [stdout] d7b1f3cf1d6cbd4895b2ec6f87462702a15de38eb318346b07e77cae86327707