[INFO] fetching crate roman_numerals_converter 0.1.0...
[INFO] testing roman_numerals_converter-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate roman_numerals_converter 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate roman_numerals_converter 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "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] 9b8deebed456b3fd0998e8dd862e4eed77aef4257e83279989a9f9ec61fd2124
[INFO] running `Command { std: "docker" "start" "-a" "9b8deebed456b3fd0998e8dd862e4eed77aef4257e83279989a9f9ec61fd2124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b8deebed456b3fd0998e8dd862e4eed77aef4257e83279989a9f9ec61fd2124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b8deebed456b3fd0998e8dd862e4eed77aef4257e83279989a9f9ec61fd2124", kill_on_drop: false }`
[INFO] [stdout] 9b8deebed456b3fd0998e8dd862e4eed77aef4257e83279989a9f9ec61fd2124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d67efcd73f3f712534feab2c90d4649eb0c7f27e6790214cdb66d984b48d9263
[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" "d67efcd73f3f712534feab2c90d4649eb0c7f27e6790214cdb66d984b48d9263", 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 0.68s
[INFO] running `Command { std: "docker" "inspect" "d67efcd73f3f712534feab2c90d4649eb0c7f27e6790214cdb66d984b48d9263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d67efcd73f3f712534feab2c90d4649eb0c7f27e6790214cdb66d984b48d9263", kill_on_drop: false }`
[INFO] [stdout] d67efcd73f3f712534feab2c90d4649eb0c7f27e6790214cdb66d984b48d9263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] a41d0545aa2217b1672725b9572f0e6903de260fd0144c30a6c45c7a3d47e0fb
[INFO] running `Command { std: "docker" "start" "-a" "a41d0545aa2217b1672725b9572f0e6903de260fd0144c30a6c45c7a3d47e0fb", 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 1.42s
[INFO] running `Command { std: "docker" "inspect" "a41d0545aa2217b1672725b9572f0e6903de260fd0144c30a6c45c7a3d47e0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a41d0545aa2217b1672725b9572f0e6903de260fd0144c30a6c45c7a3d47e0fb", kill_on_drop: false }`
[INFO] [stdout] a41d0545aa2217b1672725b9572f0e6903de260fd0144c30a6c45c7a3d47e0fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "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] b79fec4cb8290f766f2039a58be284179954747611105971e1dfdc9aa207247a
[INFO] running `Command { std: "docker" "start" "-a" "b79fec4cb8290f766f2039a58be284179954747611105971e1dfdc9aa207247a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roman_numerals_converter-57fe3c5b4860b99b
[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_can_normalize_empty_array ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_one ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_zeros ... ok
[INFO] [stdout] test roman_converter::tests::test_should_fail_over_3999 ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_2019 ... ok
[INFO] [stdout] test tests::test_conversion_to_arabic_1939 ... ok
[INFO] [stdout] test tests::test_conversion_to_roman_1939 ... ok
[INFO] [stdout] test arabic_converter::tests::test_positive_get_symbol ... ok
[INFO] [stdout] test arabic_converter::tests::test_invalid_symbol_will_return_error ... ok
[INFO] [stdout] test arabic_converter::tests::test_negative_get_symbol ... ok
[INFO] [stdout] test roman_converter::tests::test_can_convert_3999 ... 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] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests roman_numerals_converter
[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" "b79fec4cb8290f766f2039a58be284179954747611105971e1dfdc9aa207247a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b79fec4cb8290f766f2039a58be284179954747611105971e1dfdc9aa207247a", kill_on_drop: false }`
[INFO] [stdout] b79fec4cb8290f766f2039a58be284179954747611105971e1dfdc9aa207247a