[INFO] updating cached repository tamamu/roman-numeral-parser
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tamamu/roman-numeral-parser
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tamamu/roman-numeral-parser" "work/ex/beta-1.38-1/sources/1.37.0/gh/tamamu/roman-numeral-parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tamamu/roman-numeral-parser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tamamu/roman-numeral-parser" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tamamu/roman-numeral-parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tamamu/roman-numeral-parser'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 42686284b72832231327d959447965e0d0b96b4f
[INFO] sha for GitHub repo tamamu/roman-numeral-parser: 42686284b72832231327d959447965e0d0b96b4f
[INFO] validating manifest of tamamu/roman-numeral-parser 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 tamamu/roman-numeral-parser 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 tamamu/roman-numeral-parser
[INFO] finished frobbing tamamu/roman-numeral-parser
[INFO] frobbed toml for tamamu/roman-numeral-parser written to work/ex/beta-1.38-1/sources/1.37.0/gh/tamamu/roman-numeral-parser/Cargo.toml
[INFO] started frobbing tamamu/roman-numeral-parser
[INFO] finished frobbing tamamu/roman-numeral-parser
[INFO] frobbed toml for tamamu/roman-numeral-parser written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tamamu/roman-numeral-parser/Cargo.toml
[INFO] crate tamamu/roman-numeral-parser 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 tamamu/roman-numeral-parser against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tamamu/roman-numeral-parser:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9549e44bc1e4559bf77b984017407a0a700fa044fe1efd6d11a596b3ebe52a4e
[INFO] running `"docker" "start" "-a" "9549e44bc1e4559bf77b984017407a0a700fa044fe1efd6d11a596b3ebe52a4e"`
[INFO] [stderr]    Compiling rome_parser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:134:21
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     _ => Err(ParseError::IllegalAlignment)
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `first_max`
[INFO] [stderr]   --> src/main.rs:87:29
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 let (first, first_max) = try!(self.parse_one());
[INFO] [stderr]    |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_first_max`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `second_max`
[INFO] [stderr]    --> src/main.rs:115:42
[INFO] [stderr]     |
[INFO] [stderr] 115 |                             let (second, second_max) = try!(self.parse_one());
[INFO] [stderr]     |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_second_max`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:124:33
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     Token::Five(n) => {
[INFO] [stderr]     |                                 ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unknown`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Unknown
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     parser.lex();
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "9549e44bc1e4559bf77b984017407a0a700fa044fe1efd6d11a596b3ebe52a4e"`
[INFO] running `"docker" "rm" "-f" "9549e44bc1e4559bf77b984017407a0a700fa044fe1efd6d11a596b3ebe52a4e"`
[INFO] [stdout] 9549e44bc1e4559bf77b984017407a0a700fa044fe1efd6d11a596b3ebe52a4e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tamamu/roman-numeral-parser:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c8e37c266cb4c13537d261f48c01aeeaec78592c412b113d94d0252fccf136db
[INFO] running `"docker" "start" "-a" "c8e37c266cb4c13537d261f48c01aeeaec78592c412b113d94d0252fccf136db"`
[INFO] [stderr]    Compiling rome_parser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:134:21
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     _ => Err(ParseError::IllegalAlignment)
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `first_max`
[INFO] [stderr]   --> src/main.rs:87:29
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 let (first, first_max) = try!(self.parse_one());
[INFO] [stderr]    |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_first_max`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `second_max`
[INFO] [stderr]    --> src/main.rs:115:42
[INFO] [stderr]     |
[INFO] [stderr] 115 |                             let (second, second_max) = try!(self.parse_one());
[INFO] [stderr]     |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_second_max`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:124:33
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     Token::Five(n) => {
[INFO] [stderr]     |                                 ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unknown`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Unknown
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     parser.lex();
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "c8e37c266cb4c13537d261f48c01aeeaec78592c412b113d94d0252fccf136db"`
[INFO] running `"docker" "rm" "-f" "c8e37c266cb4c13537d261f48c01aeeaec78592c412b113d94d0252fccf136db"`
[INFO] [stdout] c8e37c266cb4c13537d261f48c01aeeaec78592c412b113d94d0252fccf136db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tamamu/roman-numeral-parser:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d0ab4ff21f4aac5c313580931fb1635e809a5cdc52500ddc4be617e2c19eb079
[INFO] running `"docker" "start" "-a" "d0ab4ff21f4aac5c313580931fb1635e809a5cdc52500ddc4be617e2c19eb079"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rome_parser-701e60cf7f4467f3
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test5 ... ok
[INFO] [stdout] test tests::test6 ... ok
[INFO] [stdout] test tests::test3 ... ok
[INFO] [stdout] test tests::test4 ... ok
[INFO] [stdout] test tests::test7 ... ok
[INFO] [stdout] test tests::test2 ... ok
[INFO] [stdout] test tests::test1 ... ok
[INFO] [stdout] test tests::test9 ... ok
[INFO] [stdout] test tests::test8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d0ab4ff21f4aac5c313580931fb1635e809a5cdc52500ddc4be617e2c19eb079"`
[INFO] running `"docker" "rm" "-f" "d0ab4ff21f4aac5c313580931fb1635e809a5cdc52500ddc4be617e2c19eb079"`
[INFO] [stdout] d0ab4ff21f4aac5c313580931fb1635e809a5cdc52500ddc4be617e2c19eb079