[INFO] cloning repository https://github.com/oiwn/rust-introduction-to-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oiwn/rust-introduction-to-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foiwn%2Frust-introduction-to-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foiwn%2Frust-introduction-to-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9abeba77903567f9557eab44896c6487750dccbd
[INFO] testing oiwn/rust-introduction-to-algorithms against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foiwn%2Frust-introduction-to-algorithms" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oiwn/rust-introduction-to-algorithms 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/oiwn/rust-introduction-to-algorithms
[INFO] finished tweaking git repo https://github.com/oiwn/rust-introduction-to-algorithms
[INFO] tweaked toml for git repo https://github.com/oiwn/rust-introduction-to-algorithms written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/oiwn/rust-introduction-to-algorithms 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 5a41764e108a13151fc77991246179c2fcd8b93f60608791758c5e08d4aa466a
[INFO] running `Command { std: "docker" "start" "-a" "5a41764e108a13151fc77991246179c2fcd8b93f60608791758c5e08d4aa466a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a41764e108a13151fc77991246179c2fcd8b93f60608791758c5e08d4aa466a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a41764e108a13151fc77991246179c2fcd8b93f60608791758c5e08d4aa466a", kill_on_drop: false }`
[INFO] [stdout] 5a41764e108a13151fc77991246179c2fcd8b93f60608791758c5e08d4aa466a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 095d8cb033b322edf9bd04105672ed41b8453bec90949cf6c7e695526b33382b
[INFO] running `Command { std: "docker" "start" "-a" "095d8cb033b322edf9bd04105672ed41b8453bec90949cf6c7e695526b33382b", kill_on_drop: false }`
[INFO] [stderr]    Compiling kormen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "095d8cb033b322edf9bd04105672ed41b8453bec90949cf6c7e695526b33382b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "095d8cb033b322edf9bd04105672ed41b8453bec90949cf6c7e695526b33382b", kill_on_drop: false }`
[INFO] [stdout] 095d8cb033b322edf9bd04105672ed41b8453bec90949cf6c7e695526b33382b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 2872c154da35d3f856688c20967a4531293c3c75b00f206c64c76766ea8f98d0
[INFO] running `Command { std: "docker" "start" "-a" "2872c154da35d3f856688c20967a4531293c3c75b00f206c64c76766ea8f98d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling kormen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "2872c154da35d3f856688c20967a4531293c3c75b00f206c64c76766ea8f98d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2872c154da35d3f856688c20967a4531293c3c75b00f206c64c76766ea8f98d0", kill_on_drop: false }`
[INFO] [stdout] 2872c154da35d3f856688c20967a4531293c3c75b00f206c64c76766ea8f98d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] dc124e77bc25c9a292de1d37c6835e07dcc797113e5779e4ab67ce4bcad333ac
[INFO] running `Command { std: "docker" "start" "-a" "dc124e77bc25c9a292de1d37c6835e07dcc797113e5779e4ab67ce4bcad333ac", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kormen-d4ecdcdf0c8a23e5)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test ch1::tests::insertion_sort_test ... ok
[INFO] [stdout] test ch1::tests::merge_sort_test ... ok
[INFO] [stdout] test ch6::tests::build_max_heap_test ... ok
[INFO] [stdout] test ch6::tests::heap_sort_test ... ok
[INFO] [stdout] test ch6::tests::max_heapify_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc124e77bc25c9a292de1d37c6835e07dcc797113e5779e4ab67ce4bcad333ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc124e77bc25c9a292de1d37c6835e07dcc797113e5779e4ab67ce4bcad333ac", kill_on_drop: false }`
[INFO] [stdout] dc124e77bc25c9a292de1d37c6835e07dcc797113e5779e4ab67ce4bcad333ac