[INFO] cloning repository https://github.com/mt-rainier/mnist_plain_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mt-rainier/mnist_plain_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-rainier%2Fmnist_plain_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-rainier%2Fmnist_plain_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90f6b4f50268ef4a6aadf9d21cc4a54b28c0d9bd
[INFO] testing mt-rainier/mnist_plain_rust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-rainier%2Fmnist_plain_rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mt-rainier/mnist_plain_rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mt-rainier/mnist_plain_rust
[INFO] finished tweaking git repo https://github.com/mt-rainier/mnist_plain_rust
[INFO] tweaked toml for git repo https://github.com/mt-rainier/mnist_plain_rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mt-rainier/mnist_plain_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f72bd1c967a61017eb2a74cd5bf1150929780981d5d78a9c07ecfb2fd5e9fc4e
[INFO] running `Command { std: "docker" "start" "-a" "f72bd1c967a61017eb2a74cd5bf1150929780981d5d78a9c07ecfb2fd5e9fc4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f72bd1c967a61017eb2a74cd5bf1150929780981d5d78a9c07ecfb2fd5e9fc4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72bd1c967a61017eb2a74cd5bf1150929780981d5d78a9c07ecfb2fd5e9fc4e", kill_on_drop: false }`
[INFO] [stdout] f72bd1c967a61017eb2a74cd5bf1150929780981d5d78a9c07ecfb2fd5e9fc4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45126940d7c352ec841d1a5cc9271a61824f8da7cf24797d7c7d002984991f95
[INFO] running `Command { std: "docker" "start" "-a" "45126940d7c352ec841d1a5cc9271a61824f8da7cf24797d7c7d002984991f95", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling mnist_plain_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.22s
[INFO] running `Command { std: "docker" "inspect" "45126940d7c352ec841d1a5cc9271a61824f8da7cf24797d7c7d002984991f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45126940d7c352ec841d1a5cc9271a61824f8da7cf24797d7c7d002984991f95", kill_on_drop: false }`
[INFO] [stdout] 45126940d7c352ec841d1a5cc9271a61824f8da7cf24797d7c7d002984991f95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0d4f82d5c76b0c1a66ef8bc747553ff2e2b7814596dbaacc08fbc059da60efc
[INFO] running `Command { std: "docker" "start" "-a" "e0d4f82d5c76b0c1a66ef8bc747553ff2e2b7814596dbaacc08fbc059da60efc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mnist_plain_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.15s
[INFO] running `Command { std: "docker" "inspect" "e0d4f82d5c76b0c1a66ef8bc747553ff2e2b7814596dbaacc08fbc059da60efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d4f82d5c76b0c1a66ef8bc747553ff2e2b7814596dbaacc08fbc059da60efc", kill_on_drop: false }`
[INFO] [stdout] e0d4f82d5c76b0c1a66ef8bc747553ff2e2b7814596dbaacc08fbc059da60efc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e4d021511039a62416e995c063aa39099bbe7ff6b8658e33e2add75ec134de3
[INFO] running `Command { std: "docker" "start" "-a" "8e4d021511039a62416e995c063aa39099bbe7ff6b8658e33e2add75ec134de3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mnist_plain_rust-b904ef6fb06ed17a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e4d021511039a62416e995c063aa39099bbe7ff6b8658e33e2add75ec134de3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e4d021511039a62416e995c063aa39099bbe7ff6b8658e33e2add75ec134de3", kill_on_drop: false }`
[INFO] [stdout] 8e4d021511039a62416e995c063aa39099bbe7ff6b8658e33e2add75ec134de3