[INFO] cloning repository https://github.com/howeih/Day-30-Strassen-multiplication
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/howeih/Day-30-Strassen-multiplication" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-30-Strassen-multiplication", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-30-Strassen-multiplication'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f8d722a91e269193891940b5a29e5a4a1f221ce
[INFO] testing howeih/Day-30-Strassen-multiplication against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-30-Strassen-multiplication" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/howeih/Day-30-Strassen-multiplication on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/howeih/Day-30-Strassen-multiplication
[INFO] finished tweaking git repo https://github.com/howeih/Day-30-Strassen-multiplication
[INFO] tweaked toml for git repo https://github.com/howeih/Day-30-Strassen-multiplication written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/howeih/Day-30-Strassen-multiplication already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b235b5c1bfa59f9f6c32a1a1043331094126e5fad11e96113747f66fe61ad9ba
[INFO] running `Command { std: "docker" "start" "-a" "b235b5c1bfa59f9f6c32a1a1043331094126e5fad11e96113747f66fe61ad9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b235b5c1bfa59f9f6c32a1a1043331094126e5fad11e96113747f66fe61ad9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b235b5c1bfa59f9f6c32a1a1043331094126e5fad11e96113747f66fe61ad9ba", kill_on_drop: false }`
[INFO] [stdout] b235b5c1bfa59f9f6c32a1a1043331094126e5fad11e96113747f66fe61ad9ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f32bc9f4f3366b3079452bbefc21d227b701bdac907a8cb1d4988f1d018838d7
[INFO] running `Command { std: "docker" "start" "-a" "f32bc9f4f3366b3079452bbefc21d227b701bdac907a8cb1d4988f1d018838d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling strassen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "f32bc9f4f3366b3079452bbefc21d227b701bdac907a8cb1d4988f1d018838d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32bc9f4f3366b3079452bbefc21d227b701bdac907a8cb1d4988f1d018838d7", kill_on_drop: false }`
[INFO] [stdout] f32bc9f4f3366b3079452bbefc21d227b701bdac907a8cb1d4988f1d018838d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 611edcb3c0fd0667b8a470ee85a232be6b028d10e347bef4951b63856950d891
[INFO] running `Command { std: "docker" "start" "-a" "611edcb3c0fd0667b8a470ee85a232be6b028d10e347bef4951b63856950d891", kill_on_drop: false }`
[INFO] [stderr]    Compiling strassen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "611edcb3c0fd0667b8a470ee85a232be6b028d10e347bef4951b63856950d891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "611edcb3c0fd0667b8a470ee85a232be6b028d10e347bef4951b63856950d891", kill_on_drop: false }`
[INFO] [stdout] 611edcb3c0fd0667b8a470ee85a232be6b028d10e347bef4951b63856950d891
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ec59eafb943c8c855c1b8a9f4f1c151af95c56025984e5c89b3ecc743e5c046
[INFO] running `Command { std: "docker" "start" "-a" "6ec59eafb943c8c855c1b8a9f4f1c151af95c56025984e5c89b3ecc743e5c046", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/strassen-e42fa05fd1c83cab)
[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" "6ec59eafb943c8c855c1b8a9f4f1c151af95c56025984e5c89b3ecc743e5c046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec59eafb943c8c855c1b8a9f4f1c151af95c56025984e5c89b3ecc743e5c046", kill_on_drop: false }`
[INFO] [stdout] 6ec59eafb943c8c855c1b8a9f4f1c151af95c56025984e5c89b3ecc743e5c046