[INFO] cloning repository adrianclay/rust_roman_numerals [INFO] running `"git" "clone" "--bare" "git://github.com/adrianclay/rust_roman_numerals.git" "work/cache/sources/gh/adrianclay/rust_roman_numerals"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/adrianclay/rust_roman_numerals'... [INFO] running `"git" "clone" "work/cache/sources/gh/adrianclay/rust_roman_numerals" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/adrianclay/rust_roman_numerals"` [INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/adrianclay/rust_roman_numerals'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/adrianclay/rust_roman_numerals" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/adrianclay/rust_roman_numerals"` [INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/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 master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of adrianclay/rust_roman_numerals on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "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/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/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/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/adrianclay/rust_roman_numerals/Cargo.toml [INFO] crate adrianclay/rust_roman_numerals has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking adrianclay/rust_roman_numerals against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-2/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/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=forbid" "-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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5a44d835e4e408bb4a8821f0ebc043f8bbe6693d98903619737e016e8ac8667c [INFO] running `"docker" "start" "-a" "5a44d835e4e408bb4a8821f0ebc043f8bbe6693d98903619737e016e8ac8667c"` [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking roman_numerals v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.30s [INFO] running `"docker" "inspect" "5a44d835e4e408bb4a8821f0ebc043f8bbe6693d98903619737e016e8ac8667c"` [INFO] running `"docker" "rm" "-f" "5a44d835e4e408bb4a8821f0ebc043f8bbe6693d98903619737e016e8ac8667c"` [INFO] [stdout] 5a44d835e4e408bb4a8821f0ebc043f8bbe6693d98903619737e016e8ac8667c