[INFO] cloning repository https://github.com/alexesmet/mandelbrot-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexesmet/mandelbrot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexesmet%2Fmandelbrot-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexesmet%2Fmandelbrot-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b1f77dfef7963a0c04729a201f9675d16e9ca07
[INFO] checking alexesmet/mandelbrot-rs against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexesmet%2Fmandelbrot-rs" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexesmet/mandelbrot-rs 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 git repo https://github.com/alexesmet/mandelbrot-rs
[INFO] finished tweaking git repo https://github.com/alexesmet/mandelbrot-rs
[INFO] tweaked toml for git repo https://github.com/alexesmet/mandelbrot-rs written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate git repo https://github.com/alexesmet/mandelbrot-rs already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded gpu-alloc v0.4.7
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[INFO] [stderr]   Downloaded redox_syscall v0.2.9
[INFO] [stderr]   Downloaded ash v0.32.1
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[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded memmap2 v0.1.0
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[INFO] [stderr]   Downloaded thiserror-impl v1.0.26
[INFO] [stderr]   Downloaded nom v6.2.1
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[INFO] [stderr]   Downloaded core-video-sys v0.1.4
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[INFO] [stderr]   Downloaded core-graphics v0.19.2
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[INFO] [stderr]   Downloaded randomize v3.0.1
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[INFO] [stderr]   Downloaded core-graphics-types v0.1.1
[INFO] [stderr]   Downloaded dispatch v0.2.0
[INFO] [stderr]   Downloaded darling_core v0.10.2
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[INFO] [stderr]   Downloaded strsim v0.9.3
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[INFO] [stderr]   Downloaded nix v0.18.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] [stdout] adee548de677848cd8ae3b489b637dff94dadc0a1dd24f96db350733a169911c
[INFO] running `Command { std: "docker" "start" "-a" "adee548de677848cd8ae3b489b637dff94dadc0a1dd24f96db350733a169911c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adee548de677848cd8ae3b489b637dff94dadc0a1dd24f96db350733a169911c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adee548de677848cd8ae3b489b637dff94dadc0a1dd24f96db350733a169911c", kill_on_drop: false }`
[INFO] [stdout] adee548de677848cd8ae3b489b637dff94dadc0a1dd24f96db350733a169911c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62f47b64742b799eb97bb883403ac83a0fcab932d2ff5b1900f59ea826a28b27
[INFO] running `Command { std: "docker" "start" "-a" "62f47b64742b799eb97bb883403ac83a0fcab932d2ff5b1900f59ea826a28b27", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking glow v0.9.0
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking inplace_it v0.3.3
[INFO] [stderr]     Checking profiling v1.0.3
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking pollster v0.2.4
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking randomize v3.0.1
[INFO] [stderr]     Checking hsl v0.1.1
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]     Checking wgpu-types v0.8.0
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking line_drawing v0.8.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.18.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=cf0c9917b46fc4a5 -C extra-filename=-cf0c9917b46fc4a5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-22dcd12d8ed9385b.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-70f8c0bf8d13201f.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-4fa0c50be704fb69.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "62f47b64742b799eb97bb883403ac83a0fcab932d2ff5b1900f59ea826a28b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62f47b64742b799eb97bb883403ac83a0fcab932d2ff5b1900f59ea826a28b27", kill_on_drop: false }`
[INFO] [stdout] 62f47b64742b799eb97bb883403ac83a0fcab932d2ff5b1900f59ea826a28b27
