Dec 19 16:44:31.967 INFO checking furuhama/epoll against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:44:31.967 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/furuhama/epoll:/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 16:44:32.141 INFO [stdout] 337f416bf62c4294cd656ac8f9007be54bc97b7db5548c0bee6b265bf50b7a70
Dec 19 16:44:32.143 INFO running `"docker" "start" "-a" "337f416bf62c4294cd656ac8f9007be54bc97b7db5548c0bee6b265bf50b7a70"`
Dec 19 16:44:33.074 INFO [stderr]     Checking epoll v0.1.0 (/opt/crater/workdir)
Dec 19 16:44:33.636 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:44:33.636 INFO [stderr]  --> src/main.rs:4:5
Dec 19 16:44:33.636 INFO [stderr]   |
Dec 19 16:44:33.636 INFO [stderr] 4 |     epoll::epoll();
Dec 19 16:44:33.636 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 19 16:44:33.636 INFO [stderr]   |
Dec 19 16:44:33.636 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 19 16:44:33.636 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:44:33.636 INFO [stderr] 
Dec 19 16:44:33.672 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:44:33.672 INFO [stderr]  --> src/main.rs:4:5
Dec 19 16:44:33.672 INFO [stderr]   |
Dec 19 16:44:33.672 INFO [stderr] 4 |     epoll::epoll();
Dec 19 16:44:33.672 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 19 16:44:33.672 INFO [stderr]   |
Dec 19 16:44:33.672 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 19 16:44:33.672 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:44:33.672 INFO [stderr] 
Dec 19 16:44:33.683 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Dec 19 16:44:33.915 INFO running `"docker" "inspect" "337f416bf62c4294cd656ac8f9007be54bc97b7db5548c0bee6b265bf50b7a70"`
Dec 19 16:44:33.995 INFO running `"docker" "rm" "-f" "337f416bf62c4294cd656ac8f9007be54bc97b7db5548c0bee6b265bf50b7a70"`
Dec 19 16:44:34.139 INFO [stdout] 337f416bf62c4294cd656ac8f9007be54bc97b7db5548c0bee6b265bf50b7a70