[INFO] fetching crate pixel_engine_backend 0.4.0...
[INFO] testing pixel_engine_backend-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pixel_engine_backend 0.4.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate pixel_engine_backend 0.4.0 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 pixel_engine_backend 0.4.0
[INFO] finished tweaking crates.io crate pixel_engine_backend 0.4.0
[INFO] tweaked toml for crates.io crate pixel_engine_backend 0.4.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7c02d6d7e64edce56fd94c96d8c01c5cf0e941dd64a2bdab0e8cc6503fedd8b
[INFO] running `Command { std: "docker" "start" "-a" "a7c02d6d7e64edce56fd94c96d8c01c5cf0e941dd64a2bdab0e8cc6503fedd8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7c02d6d7e64edce56fd94c96d8c01c5cf0e941dd64a2bdab0e8cc6503fedd8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c02d6d7e64edce56fd94c96d8c01c5cf0e941dd64a2bdab0e8cc6503fedd8b", kill_on_drop: false }`
[INFO] [stdout] a7c02d6d7e64edce56fd94c96d8c01c5cf0e941dd64a2bdab0e8cc6503fedd8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 767ddb6816e70425bdf32edccb3cace07dd9a725e010a8bbb930f97b6baa0a9d
[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" "767ddb6816e70425bdf32edccb3cace07dd9a725e010a8bbb930f97b6baa0a9d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling khronos-egl v3.0.2
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling inplace_it v0.3.3
[INFO] [stderr]    Compiling glow v0.7.2
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling gpu-alloc-types v0.2.0
[INFO] [stderr]    Compiling gpu-descriptor-types v0.1.1
[INFO] [stderr]    Compiling wgpu-types v0.7.0
[INFO] [stderr]    Compiling ash v0.31.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling spirv_headers v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling wgpu-core v0.7.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling wayland-commons v0.28.6
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling spirv_cross v0.23.1
[INFO] [stderr] error: could not compile `ash`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ash --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ash-0.31.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="libloading"' -C metadata=940016d860f58e36 -C extra-filename=-940016d860f58e36 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-3173d3dfe4fa6324.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: src/wrapper.cpp:2: warning: ignoring #pragma warning  [-Wunknown-pragmas]
[INFO] [stderr] warning:     2 | #pragma warning(disable : 4996 4101)
[INFO] [stderr] warning:       | 
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "767ddb6816e70425bdf32edccb3cace07dd9a725e010a8bbb930f97b6baa0a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767ddb6816e70425bdf32edccb3cace07dd9a725e010a8bbb930f97b6baa0a9d", kill_on_drop: false }`
[INFO] [stdout] 767ddb6816e70425bdf32edccb3cace07dd9a725e010a8bbb930f97b6baa0a9d