[INFO] updating cached repository volks73/groom
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/volks73/groom
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/volks73/groom" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/volks73/groom"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/volks73/groom'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/volks73/groom" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/volks73/groom"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/volks73/groom'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f495906323a9804f4d37e06abb43745c3b0547d3
[INFO] sha for GitHub repo volks73/groom: f495906323a9804f4d37e06abb43745c3b0547d3
[INFO] validating manifest of volks73/groom on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of volks73/groom on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing volks73/groom
[INFO] finished frobbing volks73/groom
[INFO] frobbed toml for volks73/groom written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/volks73/groom/Cargo.toml
[INFO] started frobbing volks73/groom
[INFO] finished frobbing volks73/groom
[INFO] frobbed toml for volks73/groom written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/volks73/groom/Cargo.toml
[INFO] crate volks73/groom already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking volks73/groom against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-5/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/volks73/groom:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e3c338ec0d4ba2558e99f3f11945957efca2dc789ecd1fcbb2a1a1da0f9e0b6d
[INFO] running `"docker" "start" "-a" "e3c338ec0d4ba2558e99f3f11945957efca2dc789ecd1fcbb2a1a1da0f9e0b6d"`
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]    Compiling Groom v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking loggerv v0.6.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.32s
[INFO] running `"docker" "inspect" "e3c338ec0d4ba2558e99f3f11945957efca2dc789ecd1fcbb2a1a1da0f9e0b6d"`
[INFO] running `"docker" "rm" "-f" "e3c338ec0d4ba2558e99f3f11945957efca2dc789ecd1fcbb2a1a1da0f9e0b6d"`
[INFO] [stdout] e3c338ec0d4ba2558e99f3f11945957efca2dc789ecd1fcbb2a1a1da0f9e0b6d