[INFO] fetching crate kas-wgpu 0.9.0...
[INFO] checking kas-wgpu-0.9.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate kas-wgpu 0.9.0 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate kas-wgpu 0.9.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kas-wgpu 0.9.0
[INFO] finished tweaking crates.io crate kas-wgpu 0.9.0
[INFO] tweaked toml for crates.io crate kas-wgpu 0.9.0 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate crates.io crate kas-wgpu 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wgpu-types v0.9.0
[INFO] [stderr]   Downloaded gfx-backend-empty v0.9.0
[INFO] [stderr]   Downloaded d3d12 v0.4.0
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.9.0
[INFO] [stderr]   Downloaded unicode-bidi-mirroring v0.1.0
[INFO] [stderr]   Downloaded unicode-ccc v0.1.2
[INFO] [stderr]   Downloaded unicode-general-category v0.2.0
[INFO] [stderr]   Downloaded unicode-script v0.5.3
[INFO] [stderr]   Downloaded fontdb v0.5.4
[INFO] [stderr]   Downloaded gfx-renderdoc v0.1.0
[INFO] [stderr]   Downloaded renderdoc-sys v0.7.1
[INFO] [stderr]   Downloaded guillotiere v0.6.1
[INFO] [stderr]   Downloaded easy-cast v0.4.4
[INFO] [stderr]   Downloaded gfx-backend-metal v0.9.1
[INFO] [stderr]   Downloaded metal v0.23.0
[INFO] [stderr]   Downloaded gpu-alloc v0.4.7
[INFO] [stderr]   Downloaded gfx-auxil v0.10.0
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.9.0
[INFO] [stderr]   Downloaded glow v0.9.0
[INFO] [stderr]   Downloaded drm-fourcc v2.1.1
[INFO] [stderr]   Downloaded ash v0.32.1
[INFO] [stderr]   Downloaded gfx-hal v0.9.0
[INFO] [stderr]   Downloaded rustybuzz v0.3.0
[INFO] [stderr]   Downloaded stack_dst v0.6.1
[INFO] [stderr]   Downloaded external-memory v0.0.1
[INFO] [stderr]   Downloaded profiling v1.0.3
[INFO] [stderr]   Downloaded kas-theme v0.9.0
[INFO] [stderr]   Downloaded rose_tree v0.2.0
[INFO] [stderr]   Downloaded kas-macros v0.9.0
[INFO] [stderr]   Downloaded ttf-parser v0.9.0
[INFO] [stderr]   Downloaded wgpu-core v0.9.2
[INFO] [stderr]   Downloaded wgpu v0.9.0
[INFO] [stderr]   Downloaded linear-map v1.2.0
[INFO] [stderr]   Downloaded thunderdome v0.4.1
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.9.1
[INFO] [stderr]   Downloaded gfx-backend-gl v0.9.0
[INFO] [stderr]   Downloaded khronos-egl v4.1.0
[INFO] [stderr]   Downloaded kas-text v0.3.4
[INFO] [stderr]   Downloaded kas v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92fe808c5236d701103f74bcd1276e7a64c407561a3a92fe11d49a08af20c14f
[INFO] running `Command { std: "docker" "start" "-a" "92fe808c5236d701103f74bcd1276e7a64c407561a3a92fe11d49a08af20c14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92fe808c5236d701103f74bcd1276e7a64c407561a3a92fe11d49a08af20c14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92fe808c5236d701103f74bcd1276e7a64c407561a3a92fe11d49a08af20c14f", kill_on_drop: false }`
[INFO] [stdout] 92fe808c5236d701103f74bcd1276e7a64c407561a3a92fe11d49a08af20c14f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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=forbid" "-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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1acf270a4332754f6aa98cec2415fc64da874b06a36c912ee8a79e6cf5d38e6e
[INFO] running `Command { std: "docker" "start" "-a" "1acf270a4332754f6aa98cec2415fc64da874b06a36c912ee8a79e6cf5d38e6e", 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] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "1acf270a4332754f6aa98cec2415fc64da874b06a36c912ee8a79e6cf5d38e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1acf270a4332754f6aa98cec2415fc64da874b06a36c912ee8a79e6cf5d38e6e", kill_on_drop: false }`
[INFO] [stdout] 1acf270a4332754f6aa98cec2415fc64da874b06a36c912ee8a79e6cf5d38e6e