Dec 19 20:21:14.065 INFO checking arjanvaneersel/meetup against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:21:14.065 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/arjanvaneersel/meetup:/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 20:21:14.538 INFO [stdout] c746247e36fda65a9e6b4d0066e4bf075348367b43f8ffa7615d52d36b4a04a6
Dec 19 20:21:14.540 INFO running `"docker" "start" "-a" "c746247e36fda65a9e6b4d0066e4bf075348367b43f8ffa7615d52d36b4a04a6"`
Dec 19 20:21:16.584 INFO [stderr]    Compiling syn v0.15.21
Dec 19 20:21:16.592 INFO [stderr]     Checking reqwest v0.9.5
Dec 19 20:21:27.075 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 19 20:21:39.949 INFO [stderr]     Checking meetup v0.1.0 (/opt/crater/workdir)
Dec 19 20:21:41.997 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.79s
Dec 19 20:21:42.635 INFO running `"docker" "inspect" "c746247e36fda65a9e6b4d0066e4bf075348367b43f8ffa7615d52d36b4a04a6"`
Dec 19 20:21:43.054 INFO running `"docker" "rm" "-f" "c746247e36fda65a9e6b4d0066e4bf075348367b43f8ffa7615d52d36b4a04a6"`
Dec 19 20:21:43.283 INFO [stdout] c746247e36fda65a9e6b4d0066e4bf075348367b43f8ffa7615d52d36b4a04a6