[INFO] updating cached repository rustomax/rust-collatz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rustomax/rust-collatz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rustomax/rust-collatz" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/rustomax/rust-collatz"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/rustomax/rust-collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rustomax/rust-collatz" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/rustomax/rust-collatz"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/rustomax/rust-collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e1decc553aabe0f0619dab9ba750c704e664781
[INFO] sha for GitHub repo rustomax/rust-collatz: 3e1decc553aabe0f0619dab9ba750c704e664781
[INFO] validating manifest of rustomax/rust-collatz on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rustomax/rust-collatz on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rustomax/rust-collatz
[INFO] finished frobbing rustomax/rust-collatz
[INFO] frobbed toml for rustomax/rust-collatz written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/rustomax/rust-collatz/Cargo.toml
[INFO] started frobbing rustomax/rust-collatz
[INFO] finished frobbing rustomax/rust-collatz
[INFO] frobbed toml for rustomax/rust-collatz written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/rustomax/rust-collatz/Cargo.toml
[INFO] crate rustomax/rust-collatz already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rustomax/rust-collatz against try#74092351c05ae61047b2be02024415546595e974 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-3/try#74092351c05ae61047b2be02024415546595e974:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/rustomax/rust-collatz:/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" "+74092351c05ae61047b2be02024415546595e974-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6db04f00da7e738aef57bcc8f64d9942adc5af11b78beef453c01ac2d6b9d44f
[INFO] running `"docker" "start" "-a" "6db04f00da7e738aef57bcc8f64d9942adc5af11b78beef453c01ac2d6b9d44f"`
[INFO] [stderr]     Checking collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `"docker" "inspect" "6db04f00da7e738aef57bcc8f64d9942adc5af11b78beef453c01ac2d6b9d44f"`
[INFO] running `"docker" "rm" "-f" "6db04f00da7e738aef57bcc8f64d9942adc5af11b78beef453c01ac2d6b9d44f"`
[INFO] [stdout] 6db04f00da7e738aef57bcc8f64d9942adc5af11b78beef453c01ac2d6b9d44f