Dec 19 16:42:10.731 INFO checking gaoyifan/tcp-transparent-repeater against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:42:10.731 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/gaoyifan/tcp-transparent-repeater:/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 16:42:11.098 INFO [stdout] 7f43e74ba89630b1a793998155efa486cd71228b1fdbec4c12d6d52ab003919d
Dec 19 16:42:11.104 INFO running `"docker" "start" "-a" "7f43e74ba89630b1a793998155efa486cd71228b1fdbec4c12d6d52ab003919d"`
Dec 19 16:42:12.416 INFO [stderr]     Checking bytes v0.4.5
Dec 19 16:42:13.280 INFO [stderr]     Checking tokio-io v0.1.4
Dec 19 16:42:14.220 INFO [stderr]     Checking tokio-core v0.1.10
Dec 19 16:42:15.460 INFO [stderr]     Checking tcp_transparent_repeater v0.1.1 (/opt/crater/workdir)
Dec 19 16:42:16.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.83s
Dec 19 16:42:17.118 INFO running `"docker" "inspect" "7f43e74ba89630b1a793998155efa486cd71228b1fdbec4c12d6d52ab003919d"`
Dec 19 16:42:17.328 INFO running `"docker" "rm" "-f" "7f43e74ba89630b1a793998155efa486cd71228b1fdbec4c12d6d52ab003919d"`
Dec 19 16:42:17.652 INFO [stdout] 7f43e74ba89630b1a793998155efa486cd71228b1fdbec4c12d6d52ab003919d