[INFO] updating cached repository shdblowers/roman_numerals_kata
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shdblowers/roman_numerals_kata
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shdblowers/roman_numerals_kata" "work/ex/beta-1.37-6/sources/1.36.0/gh/shdblowers/roman_numerals_kata"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/shdblowers/roman_numerals_kata'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shdblowers/roman_numerals_kata" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shdblowers/roman_numerals_kata"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shdblowers/roman_numerals_kata'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2fc9416a55d8c2d706c9a2407eb9db3c32d48ce
[INFO] sha for GitHub repo shdblowers/roman_numerals_kata: b2fc9416a55d8c2d706c9a2407eb9db3c32d48ce
[INFO] validating manifest of shdblowers/roman_numerals_kata on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shdblowers/roman_numerals_kata on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shdblowers/roman_numerals_kata
[INFO] finished frobbing shdblowers/roman_numerals_kata
[INFO] frobbed toml for shdblowers/roman_numerals_kata written to work/ex/beta-1.37-6/sources/1.36.0/gh/shdblowers/roman_numerals_kata/Cargo.toml
[INFO] started frobbing shdblowers/roman_numerals_kata
[INFO] finished frobbing shdblowers/roman_numerals_kata
[INFO] frobbed toml for shdblowers/roman_numerals_kata written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shdblowers/roman_numerals_kata/Cargo.toml
[INFO] crate shdblowers/roman_numerals_kata already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing shdblowers/roman_numerals_kata against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shdblowers/roman_numerals_kata:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] de2f3a8f50752d835f205dedad1f292c50243ea2410d0f463f925b4e85f53a6e
[INFO] running `"docker" "start" "-a" "de2f3a8f50752d835f205dedad1f292c50243ea2410d0f463f925b4e85f53a6e"`
[INFO] [stderr]    Compiling roman_numerals_kata v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "de2f3a8f50752d835f205dedad1f292c50243ea2410d0f463f925b4e85f53a6e"`
[INFO] running `"docker" "rm" "-f" "de2f3a8f50752d835f205dedad1f292c50243ea2410d0f463f925b4e85f53a6e"`
[INFO] [stdout] de2f3a8f50752d835f205dedad1f292c50243ea2410d0f463f925b4e85f53a6e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shdblowers/roman_numerals_kata:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] f2e448b6231a40b86104f7268c6de0ef39e0e5f4a70786a0fce9ff09ee5c2c59
[INFO] running `"docker" "start" "-a" "f2e448b6231a40b86104f7268c6de0ef39e0e5f4a70786a0fce9ff09ee5c2c59"`
[INFO] [stderr]    Compiling roman_numerals_kata v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "f2e448b6231a40b86104f7268c6de0ef39e0e5f4a70786a0fce9ff09ee5c2c59"`
[INFO] running `"docker" "rm" "-f" "f2e448b6231a40b86104f7268c6de0ef39e0e5f4a70786a0fce9ff09ee5c2c59"`
[INFO] [stdout] f2e448b6231a40b86104f7268c6de0ef39e0e5f4a70786a0fce9ff09ee5c2c59
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shdblowers/roman_numerals_kata:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 0c109728338e6003e8e02ffe976a54b3b9f2b1135920b596f0f6d6f1c219f992
[INFO] running `"docker" "start" "-a" "0c109728338e6003e8e02ffe976a54b3b9f2b1135920b596f0f6d6f1c219f992"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/roman_numerals_kata-172d2ed653092deb
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test encoder::tests::encode_multiples ... ok
[INFO] [stdout] test encoder::tests::encode_fours ... ok
[INFO] [stdout] test encoder::tests::encode_fives ... ok
[INFO] [stdout] test tests::parse_converts_command_line_args_to_single_number ... ok
[INFO] [stdout] test encoder::tests::encode_singles ... ok
[INFO] [stdout] test encoder::tests::encode_nines ... ok
[INFO] [stdout] test tests::parse_errors_if_provided_with_too_few_arguments ... ok
[INFO] [stdout] test tests::parse_errors_if_provided_with_too_many_arguments ... ok
[INFO] [stdout] test tests::parse_errors_when_its_not_given_a_number ... ok
[INFO] [stdout] test tests::parse_errors_when_number_too_large ... ok
[INFO] [stdout] test tests::parse_errors_when_number_too_small ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/roman_numerals_kata-4dff22709224a3af
[INFO] [stderr]    Doc-tests roman_numerals_kata
[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] [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 `"docker" "inspect" "0c109728338e6003e8e02ffe976a54b3b9f2b1135920b596f0f6d6f1c219f992"`
[INFO] running `"docker" "rm" "-f" "0c109728338e6003e8e02ffe976a54b3b9f2b1135920b596f0f6d6f1c219f992"`
[INFO] [stdout] 0c109728338e6003e8e02ffe976a54b3b9f2b1135920b596f0f6d6f1c219f992