[INFO] cloning repository https://github.com/ethqnol/mnist-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethqnol/mnist-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethqnol%2Fmnist-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethqnol%2Fmnist-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df89a70df88480c5206269b24fcda280fca40ef3
[INFO] checking ethqnol/mnist-wasm against master#b115ea2e6a07e440e7cc18b08644fc0a2265391b for pr-139493-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethqnol%2Fmnist-wasm" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ethqnol/mnist-wasm
[INFO] finished tweaking git repo https://github.com/ethqnol/mnist-wasm
[INFO] tweaked toml for git repo https://github.com/ethqnol/mnist-wasm written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ethqnol/mnist-wasm on toolchain b115ea2e6a07e440e7cc18b08644fc0a2265391b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b115ea2e6a07e440e7cc18b08644fc0a2265391b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ethqnol/mnist-wasm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b115ea2e6a07e440e7cc18b08644fc0a2265391b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wide v0.7.26
[INFO] [stderr]   Downloaded serde_json v1.0.121
[INFO] [stderr]   Downloaded nalgebra v0.33.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b115ea2e6a07e440e7cc18b08644fc0a2265391b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd572c5b62323953207cedf9ee23dba58efe9d1fbcde2f3df47fbe7c63ef838e
[INFO] running `Command { std: "docker" "start" "-a" "dd572c5b62323953207cedf9ee23dba58efe9d1fbcde2f3df47fbe7c63ef838e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd572c5b62323953207cedf9ee23dba58efe9d1fbcde2f3df47fbe7c63ef838e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd572c5b62323953207cedf9ee23dba58efe9d1fbcde2f3df47fbe7c63ef838e", kill_on_drop: false }`
[INFO] [stdout] dd572c5b62323953207cedf9ee23dba58efe9d1fbcde2f3df47fbe7c63ef838e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b115ea2e6a07e440e7cc18b08644fc0a2265391b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2f2e75d402ffcbfa6f2d427cae270618294269e4251c4aa291ed0cc88b9ab78
[INFO] running `Command { std: "docker" "start" "-a" "b2f2e75d402ffcbfa6f2d427cae270618294269e4251c4aa291ed0cc88b9ab78", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.16.3
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling serde_json v1.0.121
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling nalgebra-macros v0.2.2
[INFO] [stderr]     Checking safe_arch v0.7.2
[INFO] [stderr]     Checking wide v0.7.26
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking simba v0.9.0
[INFO] [stderr]     Checking nalgebra v0.33.0
[INFO] [stderr]     Checking mnist-wasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.17s
[INFO] running `Command { std: "docker" "inspect" "b2f2e75d402ffcbfa6f2d427cae270618294269e4251c4aa291ed0cc88b9ab78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2f2e75d402ffcbfa6f2d427cae270618294269e4251c4aa291ed0cc88b9ab78", kill_on_drop: false }`
[INFO] [stdout] b2f2e75d402ffcbfa6f2d427cae270618294269e4251c4aa291ed0cc88b9ab78