[INFO] cloning repository https://github.com/MartMcMahon/mnist_neuralnet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MartMcMahon/mnist_neuralnet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMartMcMahon%2Fmnist_neuralnet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMartMcMahon%2Fmnist_neuralnet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41c12ea09b7a80ee53b4bad6f6af9ee77be23739
[INFO] documenting MartMcMahon/mnist_neuralnet against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMartMcMahon%2Fmnist_neuralnet" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MartMcMahon/mnist_neuralnet on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MartMcMahon/mnist_neuralnet
[INFO] finished tweaking git repo https://github.com/MartMcMahon/mnist_neuralnet
[INFO] tweaked toml for git repo https://github.com/MartMcMahon/mnist_neuralnet written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/MartMcMahon/mnist_neuralnet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winit_input_helper v0.11.0
[INFO] [stderr]   Downloaded naga v0.8.3
[INFO] [stderr]   Downloaded wgpu-hal v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 4a40cce162c3983ec6a5d38f011eaaee80db70434f07a216f1ab3c9c0a0e1853
[INFO] running `Command { std: "docker" "start" "-a" "4a40cce162c3983ec6a5d38f011eaaee80db70434f07a216f1ab3c9c0a0e1853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a40cce162c3983ec6a5d38f011eaaee80db70434f07a216f1ab3c9c0a0e1853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a40cce162c3983ec6a5d38f011eaaee80db70434f07a216f1ab3c9c0a0e1853", kill_on_drop: false }`
[INFO] [stdout] 4a40cce162c3983ec6a5d38f011eaaee80db70434f07a216f1ab3c9c0a0e1853
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899219334be29e42270941766e8f38711281e22f54e56c3a57dc59f60062bcd8
[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" "899219334be29e42270941766e8f38711281e22f54e56c3a57dc59f60062bcd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.3
[INFO] [stderr]     Checking wgpu-types v0.12.0
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking gpu-alloc v0.5.3
[INFO] [stderr]     Checking ash v0.34.0+1.2.203
[INFO] [stderr]     Checking nom v7.1.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking khronos-egl v4.1.0
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking x11-dl v2.19.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking gpu-descriptor v0.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking naga v0.8.3
[INFO] [stderr]     Checking wayland-commons v0.29.4
[INFO] [stderr]     Checking calloop v0.9.3
[INFO] [stderr]     Checking wayland-cursor v0.29.4
[INFO] [stderr]     Checking wgpu-hal v0.12.3
[INFO] [stderr]     Checking wgpu-core v0.12.2
[INFO] [stderr]     Checking wgpu v0.12.0
[INFO] [stderr]     Checking pixels v0.9.0
[INFO] [stderr]     Checking winit_input_helper v0.11.0
[INFO] [stderr]  Documenting mnist_neuralnet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 00s
[INFO] running `Command { std: "docker" "inspect" "899219334be29e42270941766e8f38711281e22f54e56c3a57dc59f60062bcd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899219334be29e42270941766e8f38711281e22f54e56c3a57dc59f60062bcd8", kill_on_drop: false }`
[INFO] [stdout] 899219334be29e42270941766e8f38711281e22f54e56c3a57dc59f60062bcd8