[INFO] fetching crate pixel_engine_backend 0.2.1...
[INFO] checking pixel_engine_backend-0.2.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate pixel_engine_backend 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pixel_engine_backend 0.2.1 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pixel_engine_backend 0.2.1
[INFO] finished tweaking crates.io crate pixel_engine_backend 0.2.1
[INFO] tweaked toml for crates.io crate pixel_engine_backend 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5a3e19d25865ba00806d7f4dfcc9bb12e9b98c0be447f6fc2b8fb26d96c5b22
[INFO] running `Command { std: "docker" "start" "-a" "c5a3e19d25865ba00806d7f4dfcc9bb12e9b98c0be447f6fc2b8fb26d96c5b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5a3e19d25865ba00806d7f4dfcc9bb12e9b98c0be447f6fc2b8fb26d96c5b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a3e19d25865ba00806d7f4dfcc9bb12e9b98c0be447f6fc2b8fb26d96c5b22", kill_on_drop: false }`
[INFO] [stdout] c5a3e19d25865ba00806d7f4dfcc9bb12e9b98c0be447f6fc2b8fb26d96c5b22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff0ec6088e99fde40ef81e511f8545bc1c8d131e4f1c2381c651c180c0f626ef
[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" "ff0ec6088e99fde40ef81e511f8545bc1c8d131e4f1c2381c651c180c0f626ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking bytemuck v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking hibitset v0.6.3
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[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking gfx-hal v0.5.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.23
[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 rusttype v0.8.3
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[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking gfx-backend-empty v0.5.2
[INFO] [stderr]     Checking gfx-descriptor v0.1.0
[INFO] [stderr]     Checking gfx-memory v0.1.3
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]     Checking calloop v0.4.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling peek-poke-derive v0.2.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.6.6
[INFO] [stderr]     Checking peek-poke v0.2.0
[INFO] [stderr]     Checking wgpu-types v0.5.1
[INFO] [stderr]     Checking winit v0.22.2
[INFO] [stderr]     Checking gfx-backend-vulkan v0.5.11
[INFO] [stderr]     Checking wgpu-core v0.5.6
[INFO] [stderr]     Checking wgpu-native v0.5.1
[INFO] [stderr]     Checking wgpu v0.5.2
[INFO] [stderr]     Checking pixel_engine_backend v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "ff0ec6088e99fde40ef81e511f8545bc1c8d131e4f1c2381c651c180c0f626ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff0ec6088e99fde40ef81e511f8545bc1c8d131e4f1c2381c651c180c0f626ef", kill_on_drop: false }`
[INFO] [stdout] ff0ec6088e99fde40ef81e511f8545bc1c8d131e4f1c2381c651c180c0f626ef