[INFO] updating cached repository camccar/dailycodingproblem37
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/camccar/dailycodingproblem37
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/camccar/dailycodingproblem37" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/camccar/dailycodingproblem37"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/camccar/dailycodingproblem37'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/camccar/dailycodingproblem37" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/camccar/dailycodingproblem37"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/camccar/dailycodingproblem37'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f08560a99843804794d0ab0060baae81063e4361
[INFO] sha for GitHub repo camccar/dailycodingproblem37: f08560a99843804794d0ab0060baae81063e4361
[INFO] validating manifest of camccar/dailycodingproblem37 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of camccar/dailycodingproblem37 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing camccar/dailycodingproblem37
[INFO] finished frobbing camccar/dailycodingproblem37
[INFO] frobbed toml for camccar/dailycodingproblem37 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/camccar/dailycodingproblem37/Cargo.toml
[INFO] started frobbing camccar/dailycodingproblem37
[INFO] finished frobbing camccar/dailycodingproblem37
[INFO] frobbed toml for camccar/dailycodingproblem37 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/camccar/dailycodingproblem37/Cargo.toml
[INFO] crate camccar/dailycodingproblem37 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking camccar/dailycodingproblem37 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/camccar/dailycodingproblem37:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 85fa5cdab5c71baa8539d6f4e0ba8c7dd5274a94eb9b23432078695b53abcaaf
[INFO] running `"docker" "start" "-a" "85fa5cdab5c71baa8539d6f4e0ba8c7dd5274a94eb9b23432078695b53abcaaf"`
[INFO] [stderr]     Checking dcp37 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "85fa5cdab5c71baa8539d6f4e0ba8c7dd5274a94eb9b23432078695b53abcaaf"`
[INFO] running `"docker" "rm" "-f" "85fa5cdab5c71baa8539d6f4e0ba8c7dd5274a94eb9b23432078695b53abcaaf"`
[INFO] [stdout] 85fa5cdab5c71baa8539d6f4e0ba8c7dd5274a94eb9b23432078695b53abcaaf