[INFO] fetching crate jp 0.4.0...
[INFO] checking jp-0.4.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate jp 0.4.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate jp 0.4.0 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 jp 0.4.0
[INFO] finished tweaking crates.io crate jp 0.4.0
[INFO] tweaked toml for crates.io crate jp 0.4.0 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--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 gl_generator v0.6.1
[INFO] [stderr]   Downloaded piston-viewport v0.3.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.23.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.49.0
[INFO] [stderr]   Downloaded piston-shaders_graphics2d v0.3.1
[INFO] [stderr]   Downloaded piston-texture v0.6.0
[INFO] [stderr]   Downloaded inflate v0.3.4
[INFO] [stderr]   Downloaded png v0.11.0
[INFO] [stderr]   Downloaded interpolation v0.1.0
[INFO] [stderr]   Downloaded piston v0.35.0
[INFO] [stderr]   Downloaded read_color v0.1.0
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.35.0
[INFO] [stderr]   Downloaded glutin v0.10.1
[INFO] [stderr]   Downloaded pistoncore-input v0.20.0
[INFO] [stderr]   Downloaded pistoncore-window v0.30.0
[INFO] [stderr]   Downloaded shader_version v0.3.0
[INFO] [stderr]   Downloaded vecmath v0.3.1
[INFO] [stderr]   Downloaded rusttype v0.2.4
[INFO] [stderr]   Downloaded khronos_api v0.0.8
[INFO] [stderr]   Downloaded wayland-window v0.8.0
[INFO] [stderr]   Downloaded stb_truetype v0.2.8
[INFO] [stderr]   Downloaded piston-float v0.3.0
[INFO] [stderr]   Downloaded winit v0.8.3
[INFO] [stderr]   Downloaded gl v0.6.5
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.42.1
[INFO] [stderr]   Downloaded image v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] a09c93140b97b71c6d11a102f4ba8576be50bb0cefbbdaf9c9e8b8f10f12e962
[INFO] running `Command { std: "docker" "start" "-a" "a09c93140b97b71c6d11a102f4ba8576be50bb0cefbbdaf9c9e8b8f10f12e962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a09c93140b97b71c6d11a102f4ba8576be50bb0cefbbdaf9c9e8b8f10f12e962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a09c93140b97b71c6d11a102f4ba8576be50bb0cefbbdaf9c9e8b8f10f12e962", kill_on_drop: false }`
[INFO] [stdout] a09c93140b97b71c6d11a102f4ba8576be50bb0cefbbdaf9c9e8b8f10f12e962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] 3d6e5acc98de5a723107244c4d96b99ab9974f8b8ec29c2dc5b7bc52930e8be3
[INFO] running `Command { std: "docker" "start" "-a" "3d6e5acc98de5a723107244c4d96b99ab9974f8b8ec29c2dc5b7bc52930e8be3", kill_on_drop: false }`
[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" "3d6e5acc98de5a723107244c4d96b99ab9974f8b8ec29c2dc5b7bc52930e8be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d6e5acc98de5a723107244c4d96b99ab9974f8b8ec29c2dc5b7bc52930e8be3", kill_on_drop: false }`
[INFO] [stdout] 3d6e5acc98de5a723107244c4d96b99ab9974f8b8ec29c2dc5b7bc52930e8be3