[INFO] cloning repository https://github.com/Supakornn/mnist_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Supakornn/mnist_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSupakornn%2Fmnist_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSupakornn%2Fmnist_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a04ef9d503f9f3a991dd22c672f9cc9bb1c2f68c
[INFO] testing Supakornn/mnist_rust against 1.97.0-beta.6 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSupakornn%2Fmnist_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Supakornn/mnist_rust
[INFO] finished tweaking git repo https://github.com/Supakornn/mnist_rust
[INFO] tweaked toml for git repo https://github.com/Supakornn/mnist_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Supakornn/mnist_rust on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Supakornn/mnist_rust 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d
[INFO] running `Command { std: "docker" "start" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
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[INFO] [stderr]    Compiling mnist_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 34s
[INFO] running `Command { std: "docker" "inspect" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling mnist_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mnist_rust-ff6b06e5790b1f71)
[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] [stderr]      Running unittests src/bin/visualize.rs (/opt/rustwide/target/debug/deps/visualize-e2cd14634dde43f5)
[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" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d", kill_on_drop: false }`
[INFO] [stdout] c6d6812f8b8d61ecf7b271f73f05e17f4c93d281f90689fea5cc531723c9614d