[INFO] updating cached repository shmutalov/growingtree-maze
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shmutalov/growingtree-maze
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shmutalov/growingtree-maze" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/shmutalov/growingtree-maze"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/shmutalov/growingtree-maze'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shmutalov/growingtree-maze" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/shmutalov/growingtree-maze"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/shmutalov/growingtree-maze'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52d79d954b1aaf81899d599e1452d4428547cc0a
[INFO] sha for GitHub repo shmutalov/growingtree-maze: 52d79d954b1aaf81899d599e1452d4428547cc0a
[INFO] validating manifest of shmutalov/growingtree-maze on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shmutalov/growingtree-maze on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shmutalov/growingtree-maze
[INFO] finished frobbing shmutalov/growingtree-maze
[INFO] frobbed toml for shmutalov/growingtree-maze written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/shmutalov/growingtree-maze/Cargo.toml
[INFO] started frobbing shmutalov/growingtree-maze
[INFO] finished frobbing shmutalov/growingtree-maze
[INFO] frobbed toml for shmutalov/growingtree-maze written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/shmutalov/growingtree-maze/Cargo.toml
[INFO] crate shmutalov/growingtree-maze already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking shmutalov/growingtree-maze against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-7/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/shmutalov/growingtree-maze:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 925c9cf1c088c9027273be5add4573db8c6a9e1608b15fbc59f0d3d8f05a9976
[INFO] running `"docker" "start" "-a" "925c9cf1c088c9027273be5add4573db8c6a9e1608b15fbc59f0d3d8f05a9976"`
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking growingtree-maze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `"docker" "inspect" "925c9cf1c088c9027273be5add4573db8c6a9e1608b15fbc59f0d3d8f05a9976"`
[INFO] running `"docker" "rm" "-f" "925c9cf1c088c9027273be5add4573db8c6a9e1608b15fbc59f0d3d8f05a9976"`
[INFO] [stdout] 925c9cf1c088c9027273be5add4573db8c6a9e1608b15fbc59f0d3d8f05a9976