[INFO] fetching crate roman_numeral 0.1.0...
[INFO] testing roman_numeral-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate roman_numeral 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate roman_numeral 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_numeral 0.1.0
[INFO] finished tweaking crates.io crate roman_numeral 0.1.0
[INFO] tweaked toml for crates.io crate roman_numeral 0.1.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] f98a8be260e4a5291c6c1919aaf9f3929abc14913c603ce4d5cdad2ed04d32b1
[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" "f98a8be260e4a5291c6c1919aaf9f3929abc14913c603ce4d5cdad2ed04d32b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f98a8be260e4a5291c6c1919aaf9f3929abc14913c603ce4d5cdad2ed04d32b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f98a8be260e4a5291c6c1919aaf9f3929abc14913c603ce4d5cdad2ed04d32b1", kill_on_drop: false }`
[INFO] [stdout] f98a8be260e4a5291c6c1919aaf9f3929abc14913c603ce4d5cdad2ed04d32b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e54fd525eda835576acfeefee0c37f6eb734b993aa77a37ffd1207721216a43c
[INFO] running `Command { std: "docker" "start" "-a" "e54fd525eda835576acfeefee0c37f6eb734b993aa77a37ffd1207721216a43c", kill_on_drop: false }`
[INFO] [stderr]    Compiling roman_numeral v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "e54fd525eda835576acfeefee0c37f6eb734b993aa77a37ffd1207721216a43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54fd525eda835576acfeefee0c37f6eb734b993aa77a37ffd1207721216a43c", kill_on_drop: false }`
[INFO] [stdout] e54fd525eda835576acfeefee0c37f6eb734b993aa77a37ffd1207721216a43c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8f017028a2a02d2403de8da67cd1edadea265bc819bb5ed27cb69f72999e6069
[INFO] running `Command { std: "docker" "start" "-a" "8f017028a2a02d2403de8da67cd1edadea265bc819bb5ed27cb69f72999e6069", kill_on_drop: false }`
[INFO] [stderr]    Compiling roman_numeral v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "8f017028a2a02d2403de8da67cd1edadea265bc819bb5ed27cb69f72999e6069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f017028a2a02d2403de8da67cd1edadea265bc819bb5ed27cb69f72999e6069", kill_on_drop: false }`
[INFO] [stdout] 8f017028a2a02d2403de8da67cd1edadea265bc819bb5ed27cb69f72999e6069
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 1b773f3eadadbf4f0072d208dcf5273b7aa8475dd6561bb9fe5c7053c09f8934
[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" "1b773f3eadadbf4f0072d208dcf5273b7aa8475dd6561bb9fe5c7053c09f8934", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roman_numeral-c092efab889f9b3e
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roman_numeral-85d6ce043a057888
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::it_should_create_from_roman_numeral_string ... ok
[INFO] [stdout] test tests::it_should_not_create_from_roman_numeral_string ... ok
[INFO] [stdout] test tests::it_should_not_init_fromu32 ... ok
[INFO] [stdout] test tests::it_should_init_basic_from_u32 ... ok
[INFO] [stdout] test tests::it_should_return_max_value ... ok
[INFO] [stderr]    Doc-tests roman_numeral
[INFO] [stdout] test tests::it_should_init_from_u32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 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" "1b773f3eadadbf4f0072d208dcf5273b7aa8475dd6561bb9fe5c7053c09f8934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b773f3eadadbf4f0072d208dcf5273b7aa8475dd6561bb9fe5c7053c09f8934", kill_on_drop: false }`
[INFO] [stdout] 1b773f3eadadbf4f0072d208dcf5273b7aa8475dd6561bb9fe5c7053c09f8934