[INFO] updating cached repository Ecnavda/roman_numerals_encoder [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Ecnavda/roman_numerals_encoder [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Ecnavda/roman_numerals_encoder" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Ecnavda/roman_numerals_encoder"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Ecnavda/roman_numerals_encoder'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Ecnavda/roman_numerals_encoder" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Ecnavda/roman_numerals_encoder"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Ecnavda/roman_numerals_encoder'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 993fde9ee003e2b54a0a9b05a639ca5c07098820 [INFO] sha for GitHub repo Ecnavda/roman_numerals_encoder: 993fde9ee003e2b54a0a9b05a639ca5c07098820 [INFO] validating manifest of Ecnavda/roman_numerals_encoder on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Ecnavda/roman_numerals_encoder on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Ecnavda/roman_numerals_encoder [INFO] finished frobbing Ecnavda/roman_numerals_encoder [INFO] frobbed toml for Ecnavda/roman_numerals_encoder written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Ecnavda/roman_numerals_encoder/Cargo.toml [INFO] started frobbing Ecnavda/roman_numerals_encoder [INFO] finished frobbing Ecnavda/roman_numerals_encoder [INFO] frobbed toml for Ecnavda/roman_numerals_encoder written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Ecnavda/roman_numerals_encoder/Cargo.toml [INFO] crate Ecnavda/roman_numerals_encoder already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Ecnavda/roman_numerals_encoder against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Ecnavda/roman_numerals_encoder:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] dcc4682690d5446fb0938bfa4cc0900c950433c86c638248e619be3688ea7ff9 [INFO] running `"docker" "start" "-a" "dcc4682690d5446fb0938bfa4cc0900c950433c86c638248e619be3688ea7ff9"` [INFO] [stderr] Checking roman_numerals_encoder v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `"docker" "inspect" "dcc4682690d5446fb0938bfa4cc0900c950433c86c638248e619be3688ea7ff9"` [INFO] running `"docker" "rm" "-f" "dcc4682690d5446fb0938bfa4cc0900c950433c86c638248e619be3688ea7ff9"` [INFO] [stdout] dcc4682690d5446fb0938bfa4cc0900c950433c86c638248e619be3688ea7ff9