[INFO] cloning repository https://github.com/howeih/Day-49-Ford-Fulkerson
[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-49-Ford-Fulkerson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-49-Ford-Fulkerson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-49-Ford-Fulkerson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1af4a87034f7bf9cff697782695ca76ea954b08
[INFO] testing howeih/Day-49-Ford-Fulkerson against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-49-Ford-Fulkerson" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/howeih/Day-49-Ford-Fulkerson on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/howeih/Day-49-Ford-Fulkerson
[INFO] finished tweaking git repo https://github.com/howeih/Day-49-Ford-Fulkerson
[INFO] tweaked toml for git repo https://github.com/howeih/Day-49-Ford-Fulkerson written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/howeih/Day-49-Ford-Fulkerson already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 530b9771b9962d74ad4daf50e542dfee26ff04c340fa8f8f398fcfc23a4a56c0
[INFO] running `Command { std: "docker" "start" "-a" "530b9771b9962d74ad4daf50e542dfee26ff04c340fa8f8f398fcfc23a4a56c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "530b9771b9962d74ad4daf50e542dfee26ff04c340fa8f8f398fcfc23a4a56c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530b9771b9962d74ad4daf50e542dfee26ff04c340fa8f8f398fcfc23a4a56c0", kill_on_drop: false }`
[INFO] [stdout] 530b9771b9962d74ad4daf50e542dfee26ff04c340fa8f8f398fcfc23a4a56c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dc49d39aab424468a0c4de66c5caadd3aa3093ea0b984226b8b9943c58807ab
[INFO] running `Command { std: "docker" "start" "-a" "6dc49d39aab424468a0c4de66c5caadd3aa3093ea0b984226b8b9943c58807ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling ford_fulkerson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "6dc49d39aab424468a0c4de66c5caadd3aa3093ea0b984226b8b9943c58807ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc49d39aab424468a0c4de66c5caadd3aa3093ea0b984226b8b9943c58807ab", kill_on_drop: false }`
[INFO] [stdout] 6dc49d39aab424468a0c4de66c5caadd3aa3093ea0b984226b8b9943c58807ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53dd01664e127717bc2ba512ed8ba6341dc17e36d1e0dd3683bc52ab4d5f7b54
[INFO] running `Command { std: "docker" "start" "-a" "53dd01664e127717bc2ba512ed8ba6341dc17e36d1e0dd3683bc52ab4d5f7b54", kill_on_drop: false }`
[INFO] [stderr]    Compiling ford_fulkerson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/ford_fulkerson-961d56367228c760)
[INFO] running `Command { std: "docker" "inspect" "53dd01664e127717bc2ba512ed8ba6341dc17e36d1e0dd3683bc52ab4d5f7b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53dd01664e127717bc2ba512ed8ba6341dc17e36d1e0dd3683bc52ab4d5f7b54", kill_on_drop: false }`
[INFO] [stdout] 53dd01664e127717bc2ba512ed8ba6341dc17e36d1e0dd3683bc52ab4d5f7b54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bfe8ff0aad182f08a78236ba7abd33847f5a4eb7f6c6fc4265c0c669811c1d86
[INFO] running `Command { std: "docker" "start" "-a" "bfe8ff0aad182f08a78236ba7abd33847f5a4eb7f6c6fc4265c0c669811c1d86", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ford_fulkerson-961d56367228c760)
[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" "bfe8ff0aad182f08a78236ba7abd33847f5a4eb7f6c6fc4265c0c669811c1d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe8ff0aad182f08a78236ba7abd33847f5a4eb7f6c6fc4265c0c669811c1d86", kill_on_drop: false }`
[INFO] [stdout] bfe8ff0aad182f08a78236ba7abd33847f5a4eb7f6c6fc4265c0c669811c1d86