[INFO] cloning repository https://github.com/sencenan/rust_exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sencenan/rust_exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsencenan%2Frust_exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsencenan%2Frust_exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07edbd04683e454024a53ae19f08e69eada623ad
[INFO] testing sencenan/rust_exercise against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsencenan%2Frust_exercise" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sencenan/rust_exercise 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/sencenan/rust_exercise
[INFO] finished tweaking git repo https://github.com/sencenan/rust_exercise
[INFO] tweaked toml for git repo https://github.com/sencenan/rust_exercise written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/sencenan/rust_exercise 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7b9133738cadaa1932633d09bed0d2dcdd3aab2658c9b00de707ac4ca76e05e
[INFO] running `Command { std: "docker" "start" "-a" "e7b9133738cadaa1932633d09bed0d2dcdd3aab2658c9b00de707ac4ca76e05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b9133738cadaa1932633d09bed0d2dcdd3aab2658c9b00de707ac4ca76e05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b9133738cadaa1932633d09bed0d2dcdd3aab2658c9b00de707ac4ca76e05e", kill_on_drop: false }`
[INFO] [stdout] e7b9133738cadaa1932633d09bed0d2dcdd3aab2658c9b00de707ac4ca76e05e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 665a067de19a471ed64610e08edce6a74b1c41ac359031b4ebacf302b49bba0c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "665a067de19a471ed64610e08edce6a74b1c41ac359031b4ebacf302b49bba0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "665a067de19a471ed64610e08edce6a74b1c41ac359031b4ebacf302b49bba0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "665a067de19a471ed64610e08edce6a74b1c41ac359031b4ebacf302b49bba0c", kill_on_drop: false }`
[INFO] [stdout] 665a067de19a471ed64610e08edce6a74b1c41ac359031b4ebacf302b49bba0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 63aad015e102e427a1c40a66357122e3572c5319fe6d9001b83c59aa843c54fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "63aad015e102e427a1c40a66357122e3572c5319fe6d9001b83c59aa843c54fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "63aad015e102e427a1c40a66357122e3572c5319fe6d9001b83c59aa843c54fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63aad015e102e427a1c40a66357122e3572c5319fe6d9001b83c59aa843c54fa", kill_on_drop: false }`
[INFO] [stdout] 63aad015e102e427a1c40a66357122e3572c5319fe6d9001b83c59aa843c54fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96f08b5302c33e61a6f77cde80d4fd8f3a8a52e659da15d1d6063ecfa628f131
[INFO] running `Command { std: "docker" "start" "-a" "96f08b5302c33e61a6f77cde80d4fd8f3a8a52e659da15d1d6063ecfa628f131", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_exercise-e9f98711e7d96859)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test longest_common_prefix_14::tests::longest_common_prefix_test ... ok
[INFO] [stdout] test valid_parentheses_20::tests::is_valid_test ... ok
[INFO] [stdout] test reverse_integer_7::tests::reverse_test ... ok
[INFO] [stdout] test roman_to_integer_13::tests::roman_to_int_test ... ok
[INFO] [stdout] test palindrome_number_9::tests::is_palindrome_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" "96f08b5302c33e61a6f77cde80d4fd8f3a8a52e659da15d1d6063ecfa628f131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f08b5302c33e61a6f77cde80d4fd8f3a8a52e659da15d1d6063ecfa628f131", kill_on_drop: false }`
[INFO] [stdout] 96f08b5302c33e61a6f77cde80d4fd8f3a8a52e659da15d1d6063ecfa628f131