Dec 19 11:21:02.760 INFO checking owen-d/synchro against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:21:02.760 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/owen-d/synchro:/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 11:21:03.180 INFO [stdout] 5df9cb9d94231e2668ea14959822c23ac1be5aef3fd6b5781a82122d84d80e28
Dec 19 11:21:03.186 INFO running `"docker" "start" "-a" "5df9cb9d94231e2668ea14959822c23ac1be5aef3fd6b5781a82122d84d80e28"`
Dec 19 11:21:04.585 INFO [stderr]     Checking term_size v0.2.1
Dec 19 11:21:04.920 INFO [stderr]     Checking clap v2.19.3
Dec 19 11:21:09.361 INFO [stderr]     Checking synchro v0.1.0 (/opt/crater/workdir)
Dec 19 11:21:09.679 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.16s
Dec 19 11:21:10.414 INFO running `"docker" "inspect" "5df9cb9d94231e2668ea14959822c23ac1be5aef3fd6b5781a82122d84d80e28"`
Dec 19 11:21:10.686 INFO running `"docker" "rm" "-f" "5df9cb9d94231e2668ea14959822c23ac1be5aef3fd6b5781a82122d84d80e28"`
Dec 19 11:21:10.974 INFO [stdout] 5df9cb9d94231e2668ea14959822c23ac1be5aef3fd6b5781a82122d84d80e28