[INFO] cloning repository https://github.com/joshuamorton/rustnn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshuamorton/rustnn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuamorton%2Frustnn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuamorton%2Frustnn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41e3ef22f7419fcf706ccd9cfe5c229ee9b2dc93
[INFO] testing joshuamorton/rustnn against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuamorton%2Frustnn" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshuamorton/rustnn 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/joshuamorton/rustnn
[INFO] finished tweaking git repo https://github.com/joshuamorton/rustnn
[INFO] tweaked toml for git repo https://github.com/joshuamorton/rustnn written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuamorton/rustnn 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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] de61d07a28f55d99ee209c77434b7d755d24431e23a3be74878eda3228a6d09f
[INFO] running `Command { std: "docker" "start" "-a" "de61d07a28f55d99ee209c77434b7d755d24431e23a3be74878eda3228a6d09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de61d07a28f55d99ee209c77434b7d755d24431e23a3be74878eda3228a6d09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de61d07a28f55d99ee209c77434b7d755d24431e23a3be74878eda3228a6d09f", kill_on_drop: false }`
[INFO] [stdout] de61d07a28f55d99ee209c77434b7d755d24431e23a3be74878eda3228a6d09f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed73e850f4fe49cdea96b78d1b30d2691c93a14844d3a1b7d10d327ec09dc7e9
[INFO] running `Command { std: "docker" "start" "-a" "ed73e850f4fe49cdea96b78d1b30d2691c93a14844d3a1b7d10d327ec09dc7e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `train`
[INFO] [stdout]    --> src/main.rs:367:8
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn train(&mut self, samples: &Vec<Vec<f32>>, outs: &Vec<Vec<f32>> ) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "ed73e850f4fe49cdea96b78d1b30d2691c93a14844d3a1b7d10d327ec09dc7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed73e850f4fe49cdea96b78d1b30d2691c93a14844d3a1b7d10d327ec09dc7e9", kill_on_drop: false }`
[INFO] [stdout] ed73e850f4fe49cdea96b78d1b30d2691c93a14844d3a1b7d10d327ec09dc7e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5dd2ed5b657bf14b70136051014114bc637c14d537642e8c2e617391f120bed
[INFO] running `Command { std: "docker" "start" "-a" "d5dd2ed5b657bf14b70136051014114bc637c14d537642e8c2e617391f120bed", kill_on_drop: false }`
[INFO] [stderr]    Compiling nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `train`
[INFO] [stdout]    --> src/main.rs:367:8
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn train(&mut self, samples: &Vec<Vec<f32>>, outs: &Vec<Vec<f32>> ) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "d5dd2ed5b657bf14b70136051014114bc637c14d537642e8c2e617391f120bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5dd2ed5b657bf14b70136051014114bc637c14d537642e8c2e617391f120bed", kill_on_drop: false }`
[INFO] [stdout] d5dd2ed5b657bf14b70136051014114bc637c14d537642e8c2e617391f120bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9521ffb77a09cdab68c1d979c43dbf3d862897657e7697a1117bc16e96ca137b
[INFO] running `Command { std: "docker" "start" "-a" "9521ffb77a09cdab68c1d979c43dbf3d862897657e7697a1117bc16e96ca137b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `train`
[INFO] [stderr]    --> src/main.rs:367:8
[INFO] [stderr]     |
[INFO] [stderr] 367 |     fn train(&mut self, samples: &Vec<Vec<f32>>, outs: &Vec<Vec<f32>> ) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nn` (bin "nn" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nn-834a854529fba65d)
[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" "9521ffb77a09cdab68c1d979c43dbf3d862897657e7697a1117bc16e96ca137b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9521ffb77a09cdab68c1d979c43dbf3d862897657e7697a1117bc16e96ca137b", kill_on_drop: false }`
[INFO] [stdout] 9521ffb77a09cdab68c1d979c43dbf3d862897657e7697a1117bc16e96ca137b