[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-1.38-1/sources/1.37.0/gh/shdblowers/roman_numerals_kata"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shdblowers/roman_numerals_kata'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shdblowers/roman_numerals_kata" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shdblowers/roman_numerals_kata"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shdblowers/roman_numerals_kata on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing shdblowers/roman_numerals_kata against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f48c9193690d29780043dbdb6f627aee1055110cca8a8d70b9b48a17fe19f136
[INFO] running `"docker" "start" "-a" "f48c9193690d29780043dbdb6f627aee1055110cca8a8d70b9b48a17fe19f136"`
[INFO] [stderr]    Compiling roman_numerals_kata v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "f48c9193690d29780043dbdb6f627aee1055110cca8a8d70b9b48a17fe19f136"`
[INFO] running `"docker" "rm" "-f" "f48c9193690d29780043dbdb6f627aee1055110cca8a8d70b9b48a17fe19f136"`
[INFO] [stdout] f48c9193690d29780043dbdb6f627aee1055110cca8a8d70b9b48a17fe19f136
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 82e7fcede04562290d9b642855c16e4583103d04bc7caa69099452f165f6e7f9
[INFO] running `"docker" "start" "-a" "82e7fcede04562290d9b642855c16e4583103d04bc7caa69099452f165f6e7f9"`
[INFO] [stderr]    Compiling roman_numerals_kata v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `"docker" "inspect" "82e7fcede04562290d9b642855c16e4583103d04bc7caa69099452f165f6e7f9"`
[INFO] running `"docker" "rm" "-f" "82e7fcede04562290d9b642855c16e4583103d04bc7caa69099452f165f6e7f9"`
[INFO] [stdout] 82e7fcede04562290d9b642855c16e4583103d04bc7caa69099452f165f6e7f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d3cecfd61b54e65a130be8b6da5b570159f3ed0bee3ee4e8332ddbb8caf0f322
[INFO] running `"docker" "start" "-a" "d3cecfd61b54e65a130be8b6da5b570159f3ed0bee3ee4e8332ddbb8caf0f322"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/roman_numerals_kata-77fd86fe5f1fa09a
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::parse_errors_if_provided_with_too_few_arguments ... 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 encoder::tests::encode_multiples ... ok
[INFO] [stdout] test encoder::tests::encode_fours ... 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] test encoder::tests::encode_fives ... ok
[INFO] [stdout] test tests::parse_errors_when_its_not_given_a_number ... ok
[INFO] [stdout] test tests::parse_errors_if_provided_with_too_many_arguments ... 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-3ad6597118ea24f5
[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] [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] running `"docker" "inspect" "d3cecfd61b54e65a130be8b6da5b570159f3ed0bee3ee4e8332ddbb8caf0f322"`
[INFO] running `"docker" "rm" "-f" "d3cecfd61b54e65a130be8b6da5b570159f3ed0bee3ee4e8332ddbb8caf0f322"`
[INFO] [stdout] d3cecfd61b54e65a130be8b6da5b570159f3ed0bee3ee4e8332ddbb8caf0f322