[INFO] fetching crate roman_numerals_converter 0.1.0...
[INFO] testing roman_numerals_converter-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate roman_numerals_converter 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate roman_numerals_converter 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate roman_numerals_converter 0.1.0
[INFO] finished tweaking crates.io crate roman_numerals_converter 0.1.0
[INFO] tweaked toml for crates.io crate roman_numerals_converter 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6cd105b12e0791642ae4f2ebc9bdbf75049ed9d2550046231793f821eec8d6d
[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" "c6cd105b12e0791642ae4f2ebc9bdbf75049ed9d2550046231793f821eec8d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6cd105b12e0791642ae4f2ebc9bdbf75049ed9d2550046231793f821eec8d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6cd105b12e0791642ae4f2ebc9bdbf75049ed9d2550046231793f821eec8d6d", kill_on_drop: false }`
[INFO] [stdout] c6cd105b12e0791642ae4f2ebc9bdbf75049ed9d2550046231793f821eec8d6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5729e92c79683b8e33757d902af19ee262f29eb226b01a929c81aaf8df4d45c8
[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" "5729e92c79683b8e33757d902af19ee262f29eb226b01a929c81aaf8df4d45c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling roman_numerals_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "5729e92c79683b8e33757d902af19ee262f29eb226b01a929c81aaf8df4d45c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5729e92c79683b8e33757d902af19ee262f29eb226b01a929c81aaf8df4d45c8", kill_on_drop: false }`
[INFO] [stdout] 5729e92c79683b8e33757d902af19ee262f29eb226b01a929c81aaf8df4d45c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a4c1d2223c619b314341a494b899451cd4a9fe3d22df945c9685f633759700b
[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" "3a4c1d2223c619b314341a494b899451cd4a9fe3d22df945c9685f633759700b", kill_on_drop: false }`
[INFO] [stderr]    Compiling roman_numerals_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "3a4c1d2223c619b314341a494b899451cd4a9fe3d22df945c9685f633759700b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a4c1d2223c619b314341a494b899451cd4a9fe3d22df945c9685f633759700b", kill_on_drop: false }`
[INFO] [stdout] 3a4c1d2223c619b314341a494b899451cd4a9fe3d22df945c9685f633759700b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] eb5e897d5204418fd88c58c2104c8f1fc81a9687bc0227468efc41259f30078f
[INFO] running `Command { std: "docker" "start" "-a" "eb5e897d5204418fd88c58c2104c8f1fc81a9687bc0227468efc41259f30078f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 14 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/roman_numerals_converter-a0a62e3b688d2dfc)
[INFO] [stdout] test arabic_converter::tests::test_can_normalize_empty_array ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_one ... ok
[INFO] [stdout] test arabic_converter::tests::test_can_convert_roman_numeral_to_integer ... ok
[INFO] [stdout] test roman_converter::tests::test_should_fail_over_3999 ... ok
[INFO] [stdout] test tests::test_conversion_to_roman_1939 ... ok
[INFO] [stdout] test arabic_converter::tests::test_can_normalize_multiple_elements_array ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_2019 ... ok
[INFO] [stdout] test arabic_converter::tests::test_positive_get_symbol ... ok
[INFO] [stdout] test arabic_converter::tests::test_can_normalize_one_element_array ... ok
[INFO] [stdout] test tests::test_conversion_to_arabic_1939 ... ok
[INFO] [stdout] test arabic_converter::tests::test_invalid_symbol_will_return_error ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_zeros ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_3999 ... ok
[INFO] [stdout] test arabic_converter::tests::test_negative_get_symbol ... ok
[INFO] [stderr]    Doc-tests roman_numerals_converter
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "eb5e897d5204418fd88c58c2104c8f1fc81a9687bc0227468efc41259f30078f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb5e897d5204418fd88c58c2104c8f1fc81a9687bc0227468efc41259f30078f", kill_on_drop: false }`
[INFO] [stdout] eb5e897d5204418fd88c58c2104c8f1fc81a9687bc0227468efc41259f30078f