[INFO] cloning repository https://github.com/amatho/mandelbrot-wgpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amatho/mandelbrot-wgpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famatho%2Fmandelbrot-wgpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famatho%2Fmandelbrot-wgpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84ba891fa5e7ffde13bfd20d764463f44db430a0
[INFO] checking amatho/mandelbrot-wgpu against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famatho%2Fmandelbrot-wgpu" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amatho/mandelbrot-wgpu on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amatho/mandelbrot-wgpu
[INFO] finished tweaking git repo https://github.com/amatho/mandelbrot-wgpu
[INFO] tweaked toml for git repo https://github.com/amatho/mandelbrot-wgpu written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/amatho/mandelbrot-wgpu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 824af98022d781978deb3eba36961b3df630b33a6e797accb57f618fcbbaa7d9
[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" "824af98022d781978deb3eba36961b3df630b33a6e797accb57f618fcbbaa7d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "824af98022d781978deb3eba36961b3df630b33a6e797accb57f618fcbbaa7d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824af98022d781978deb3eba36961b3df630b33a6e797accb57f618fcbbaa7d9", kill_on_drop: false }`
[INFO] [stdout] 824af98022d781978deb3eba36961b3df630b33a6e797accb57f618fcbbaa7d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8621cc4150c4f11b5561eaaf816b1971c2ec9fa463ba8fcc3d116f36212bb060
[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" "8621cc4150c4f11b5561eaaf816b1971c2ec9fa463ba8fcc3d116f36212bb060", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling winit v0.23.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling wayland-sys v0.28.2
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking libloading v0.6.6
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking wgpu-types v0.6.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling wayland-scanner v0.28.2
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling wayland-client v0.28.2
[INFO] [stderr]    Compiling wayland-protocols v0.28.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling shaderc-sys v0.7.0
[INFO] [stderr]     Checking gfx-memory v0.2.2
[INFO] [stderr]     Checking gfx-backend-empty v0.6.0
[INFO] [stderr]     Checking gfx-descriptor v0.2.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-commons v0.28.2
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]    Compiling synstructure v0.12.3
[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 --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="libloading"' -C metadata=d57a6ac2771e3a0e -C extra-filename=-d57a6ac2771e3a0e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-0849fa6d19fb07f3.rmeta --cap-lints allow --cap-lints=forbid` (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: shaderc: searching for native shaderc libraries on system;  use '--features build-from-source' to force building from source code
[INFO] [stderr] warning: shaderc: cannot find native shaderc library on system; falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8621cc4150c4f11b5561eaaf816b1971c2ec9fa463ba8fcc3d116f36212bb060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8621cc4150c4f11b5561eaaf816b1971c2ec9fa463ba8fcc3d116f36212bb060", kill_on_drop: false }`
[INFO] [stdout] 8621cc4150c4f11b5561eaaf816b1971c2ec9fa463ba8fcc3d116f36212bb060