Dec 19 09:40:16.053 INFO checking rustomax/rust-iterators against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 09:40:16.053 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/rustomax/rust-iterators:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:40:16.412 INFO [stdout] 10716f19ecd42c214b2489185f66dca5708f076d55a6bcd3713e91abf43db689
Dec 19 09:40:16.422 INFO running `"docker" "start" "-a" "10716f19ecd42c214b2489185f66dca5708f076d55a6bcd3713e91abf43db689"`
Dec 19 09:40:17.880 INFO [stderr]     Checking either v1.1.0
Dec 19 09:40:17.892 INFO [stderr]     Checking char-iter v0.1.0
Dec 19 09:40:18.403 INFO [stderr]     Checking itertools v0.6.0
Dec 19 09:40:19.980 INFO [stderr]     Checking iterators v0.1.0 (/opt/crater/workdir)
Dec 19 09:40:20.703 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.85s
Dec 19 09:40:21.310 INFO running `"docker" "inspect" "10716f19ecd42c214b2489185f66dca5708f076d55a6bcd3713e91abf43db689"`
Dec 19 09:40:21.605 INFO running `"docker" "rm" "-f" "10716f19ecd42c214b2489185f66dca5708f076d55a6bcd3713e91abf43db689"`
Dec 19 09:40:21.857 INFO [stdout] 10716f19ecd42c214b2489185f66dca5708f076d55a6bcd3713e91abf43db689