[INFO] cloning repository dckc/snakes-ladders
[INFO] running `"git" "clone" "--bare" "git://github.com/dckc/snakes-ladders.git" "work/cache/sources/gh/dckc/snakes-ladders"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/dckc/snakes-ladders'...
[INFO] running `"git" "clone" "work/cache/sources/gh/dckc/snakes-ladders" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/dckc/snakes-ladders"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/dckc/snakes-ladders'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dckc/snakes-ladders" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/dckc/snakes-ladders"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/dckc/snakes-ladders'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fea15b696ffd3eabcea308a679d6f857a29588f7
[INFO] sha for GitHub repo dckc/snakes-ladders: fea15b696ffd3eabcea308a679d6f857a29588f7
[INFO] validating manifest of dckc/snakes-ladders 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 dckc/snakes-ladders 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 dckc/snakes-ladders
[INFO] finished frobbing dckc/snakes-ladders
[INFO] frobbed toml for dckc/snakes-ladders written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/dckc/snakes-ladders/Cargo.toml
[INFO] started frobbing dckc/snakes-ladders
[INFO] finished frobbing dckc/snakes-ladders
[INFO] frobbed toml for dckc/snakes-ladders written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/dckc/snakes-ladders/Cargo.toml
[INFO] crate dckc/snakes-ladders has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clippy_lints v0.0.123
[INFO] [stderr]   Downloaded clippy v0.0.123
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dckc/snakes-ladders against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-0/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/dckc/snakes-ladders:/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] 8dfcd379cc095524c8fb9e6fcbc7bd7c35a27553731e28baac9eb02a59d86da7
[INFO] running `"docker" "start" "-a" "8dfcd379cc095524c8fb9e6fcbc7bd7c35a27553731e28baac9eb02a59d86da7"`
[INFO] [stderr]     Checking assign4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "8dfcd379cc095524c8fb9e6fcbc7bd7c35a27553731e28baac9eb02a59d86da7"`
[INFO] running `"docker" "rm" "-f" "8dfcd379cc095524c8fb9e6fcbc7bd7c35a27553731e28baac9eb02a59d86da7"`
[INFO] [stdout] 8dfcd379cc095524c8fb9e6fcbc7bd7c35a27553731e28baac9eb02a59d86da7