[INFO] fetching crate roman_numerals_converter 0.1.0...
[INFO] testing roman_numerals_converter-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate roman_numerals_converter 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate roman_numerals_converter 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 9ec732ed2ec293c0a980006fadb18419f8eb14cb1212d65a2589c1686f8b749b
[INFO] running `Command { std: "docker" "start" "-a" "9ec732ed2ec293c0a980006fadb18419f8eb14cb1212d65a2589c1686f8b749b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ec732ed2ec293c0a980006fadb18419f8eb14cb1212d65a2589c1686f8b749b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec732ed2ec293c0a980006fadb18419f8eb14cb1212d65a2589c1686f8b749b", kill_on_drop: false }`
[INFO] [stdout] 9ec732ed2ec293c0a980006fadb18419f8eb14cb1212d65a2589c1686f8b749b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] e7872f31c0b08827598dbf18a279e7b86490b8219493b569797d6b2a658819b9
[INFO] running `Command { std: "docker" "start" "-a" "e7872f31c0b08827598dbf18a279e7b86490b8219493b569797d6b2a658819b9", 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 0.69s
[INFO] running `Command { std: "docker" "inspect" "e7872f31c0b08827598dbf18a279e7b86490b8219493b569797d6b2a658819b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7872f31c0b08827598dbf18a279e7b86490b8219493b569797d6b2a658819b9", kill_on_drop: false }`
[INFO] [stdout] e7872f31c0b08827598dbf18a279e7b86490b8219493b569797d6b2a658819b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f08607a4e2bfcde06a9297594b4be56ded63e2f6f490780f2849ae1a74a403df
[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" "f08607a4e2bfcde06a9297594b4be56ded63e2f6f490780f2849ae1a74a403df", 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 1.28s
[INFO] running `Command { std: "docker" "inspect" "f08607a4e2bfcde06a9297594b4be56ded63e2f6f490780f2849ae1a74a403df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f08607a4e2bfcde06a9297594b4be56ded63e2f6f490780f2849ae1a74a403df", kill_on_drop: false }`
[INFO] [stdout] f08607a4e2bfcde06a9297594b4be56ded63e2f6f490780f2849ae1a74a403df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 78d8d9e89959281380278bdc3a2301244d9517cd08d9b7176822e47bdb1e85f7
[INFO] running `Command { std: "docker" "start" "-a" "78d8d9e89959281380278bdc3a2301244d9517cd08d9b7176822e47bdb1e85f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roman_numerals_converter-cc926c2f29cd884e
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test arabic_converter::tests::test_can_convert_roman_numeral_to_integer ... ok
[INFO] [stdout] test arabic_converter::tests::test_negative_get_symbol ... ok
[INFO] [stdout] test arabic_converter::tests::test_positive_get_symbol ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_3999 ... ok
[INFO] [stdout] test roman_converter::tests::test_should_fail_over_3999 ... ok
[INFO] [stdout] test tests::test_conversion_to_arabic_1939 ... ok
[INFO] [stdout] test tests::test_conversion_to_roman_1939 ... ok
[INFO] [stderr]    Doc-tests roman_numerals_converter
[INFO] [stdout] test roman_converter::tests::test_can_convert_zeros ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_2019 ... ok
[INFO] [stdout] test arabic_converter::tests::test_can_normalize_one_element_array ... ok
[INFO] [stdout] test arabic_converter::tests::test_can_normalize_multiple_elements_array ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_one ... ok
[INFO] [stdout] test arabic_converter::tests::test_invalid_symbol_will_return_error ... ok
[INFO] [stdout] test arabic_converter::tests::test_can_normalize_empty_array ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "78d8d9e89959281380278bdc3a2301244d9517cd08d9b7176822e47bdb1e85f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d8d9e89959281380278bdc3a2301244d9517cd08d9b7176822e47bdb1e85f7", kill_on_drop: false }`
[INFO] [stdout] 78d8d9e89959281380278bdc3a2301244d9517cd08d9b7176822e47bdb1e85f7