[INFO] updating cached repository adrianclay/rust_roman_numerals
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adrianclay/rust_roman_numerals
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adrianclay/rust_roman_numerals" "work/ex/beta-1.38-1/sources/1.37.0/gh/adrianclay/rust_roman_numerals"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/adrianclay/rust_roman_numerals'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adrianclay/rust_roman_numerals" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adrianclay/rust_roman_numerals"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adrianclay/rust_roman_numerals'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd997dc42a4a381687db471baf9634441e4853dd
[INFO] sha for GitHub repo adrianclay/rust_roman_numerals: bd997dc42a4a381687db471baf9634441e4853dd
[INFO] validating manifest of adrianclay/rust_roman_numerals 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 adrianclay/rust_roman_numerals 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 adrianclay/rust_roman_numerals
[INFO] finished frobbing adrianclay/rust_roman_numerals
[INFO] frobbed toml for adrianclay/rust_roman_numerals written to work/ex/beta-1.38-1/sources/1.37.0/gh/adrianclay/rust_roman_numerals/Cargo.toml
[INFO] started frobbing adrianclay/rust_roman_numerals
[INFO] finished frobbing adrianclay/rust_roman_numerals
[INFO] frobbed toml for adrianclay/rust_roman_numerals written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adrianclay/rust_roman_numerals/Cargo.toml
[INFO] crate adrianclay/rust_roman_numerals 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 adrianclay/rust_roman_numerals 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-4/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/adrianclay/rust_roman_numerals:/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] 21eb5be7a3f21b149f883d3ae391881d8df81854643d2c5e867376bdac27630f
[INFO] running `"docker" "start" "-a" "21eb5be7a3f21b149f883d3ae391881d8df81854643d2c5e867376bdac27630f"`
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling roman_numerals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `"docker" "inspect" "21eb5be7a3f21b149f883d3ae391881d8df81854643d2c5e867376bdac27630f"`
[INFO] running `"docker" "rm" "-f" "21eb5be7a3f21b149f883d3ae391881d8df81854643d2c5e867376bdac27630f"`
[INFO] [stdout] 21eb5be7a3f21b149f883d3ae391881d8df81854643d2c5e867376bdac27630f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/adrianclay/rust_roman_numerals:/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] a3bcd2a77e3e6ed0bd38eb237939decfbbce301c9f005d41dc91e6291c3c11c0
[INFO] running `"docker" "start" "-a" "a3bcd2a77e3e6ed0bd38eb237939decfbbce301c9f005d41dc91e6291c3c11c0"`
[INFO] [stderr]    Compiling roman_numerals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "a3bcd2a77e3e6ed0bd38eb237939decfbbce301c9f005d41dc91e6291c3c11c0"`
[INFO] running `"docker" "rm" "-f" "a3bcd2a77e3e6ed0bd38eb237939decfbbce301c9f005d41dc91e6291c3c11c0"`
[INFO] [stdout] a3bcd2a77e3e6ed0bd38eb237939decfbbce301c9f005d41dc91e6291c3c11c0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/adrianclay/rust_roman_numerals:/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] 877d4e318aaf6561fa0dda64e4f349c4d7d976cd29891127f0fe42da66289964
[INFO] running `"docker" "start" "-a" "877d4e318aaf6561fa0dda64e4f349c4d7d976cd29891127f0fe42da66289964"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/roman_numerals-811a67344c71241c
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::basic_romal_numerals ... ok
[INFO] [stdout] test tests::complex_roman_numeral ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "877d4e318aaf6561fa0dda64e4f349c4d7d976cd29891127f0fe42da66289964"`
[INFO] running `"docker" "rm" "-f" "877d4e318aaf6561fa0dda64e4f349c4d7d976cd29891127f0fe42da66289964"`
[INFO] [stdout] 877d4e318aaf6561fa0dda64e4f349c4d7d976cd29891127f0fe42da66289964