Dec 19 15:20:17.669 INFO checking jcswart/keep-trying against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:20:17.669 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/jcswart/keep-trying:/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 15:20:18.206 INFO [stdout] a6b390b25befd7030e5538274eee7cd1651739a2f2c85c67c154735c53769828
Dec 19 15:20:18.210 INFO running `"docker" "start" "-a" "a6b390b25befd7030e5538274eee7cd1651739a2f2c85c67c154735c53769828"`
Dec 19 15:20:19.752 INFO [stderr]     Checking clap v2.30.0
Dec 19 15:20:19.752 INFO [stderr]     Checking mio-uds v0.6.4
Dec 19 15:20:20.628 INFO [stderr]     Checking tokio-signal v0.1.4
Dec 19 15:20:21.780 INFO [stderr]     Checking tokio-process v0.1.5
Dec 19 15:20:26.284 INFO [stderr]     Checking kt v0.1.0 (/opt/crater/workdir)
Dec 19 15:20:27.178 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.55s
Dec 19 15:20:28.135 INFO running `"docker" "inspect" "a6b390b25befd7030e5538274eee7cd1651739a2f2c85c67c154735c53769828"`
Dec 19 15:20:28.384 INFO running `"docker" "rm" "-f" "a6b390b25befd7030e5538274eee7cd1651739a2f2c85c67c154735c53769828"`
Dec 19 15:20:28.644 INFO [stdout] a6b390b25befd7030e5538274eee7cd1651739a2f2c85c67c154735c53769828