Dec 18 01:48:35.465 INFO checking danielsonner/wk5-starter against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:48:35.465 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/danielsonner/wk5-starter:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:48:35.922 INFO [stdout] 852e809b5cf6508bd34c1f5d4660475b3ca968ed45f5b727dcf102f3db60e9fa
Dec 18 01:48:35.930 INFO running `"docker" "start" "-a" "852e809b5cf6508bd34c1f5d4660475b3ca968ed45f5b727dcf102f3db60e9fa"`
Dec 18 01:48:37.652 INFO [stderr]     Checking wk5 v0.1.0 (/opt/crater/workdir)
Dec 18 01:48:38.276 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:48:38.276 INFO [stderr]   --> src/main.rs:13:5
Dec 18 01:48:38.276 INFO [stderr]    |
Dec 18 01:48:38.276 INFO [stderr] 13 |     std::io::stdout().flush();
Dec 18 01:48:38.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:48:38.276 INFO [stderr]    |
Dec 18 01:48:38.276 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:48:38.276 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:48:38.276 INFO [stderr] 
Dec 18 01:48:38.276 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:48:38.276 INFO [stderr]   --> src/main.rs:90:9
Dec 18 01:48:38.276 INFO [stderr]    |
Dec 18 01:48:38.276 INFO [stderr] 90 |         std::io::stdout().flush();
Dec 18 01:48:38.276 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:48:38.276 INFO [stderr]    |
Dec 18 01:48:38.276 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:48:38.276 INFO [stderr] 
Dec 18 01:48:38.315 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:48:38.315 INFO [stderr]   --> src/main.rs:13:5
Dec 18 01:48:38.315 INFO [stderr]    |
Dec 18 01:48:38.315 INFO [stderr] 13 |     std::io::stdout().flush();
Dec 18 01:48:38.315 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:48:38.315 INFO [stderr]    |
Dec 18 01:48:38.315 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:48:38.315 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:48:38.315 INFO [stderr] 
Dec 18 01:48:38.315 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:48:38.315 INFO [stderr]   --> src/main.rs:90:9
Dec 18 01:48:38.315 INFO [stderr]    |
Dec 18 01:48:38.315 INFO [stderr] 90 |         std::io::stdout().flush();
Dec 18 01:48:38.315 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:48:38.315 INFO [stderr]    |
Dec 18 01:48:38.315 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:48:38.315 INFO [stderr] 
Dec 18 01:48:38.344 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Dec 18 01:48:38.964 INFO running `"docker" "inspect" "852e809b5cf6508bd34c1f5d4660475b3ca968ed45f5b727dcf102f3db60e9fa"`
Dec 18 01:48:39.230 INFO running `"docker" "rm" "-f" "852e809b5cf6508bd34c1f5d4660475b3ca968ed45f5b727dcf102f3db60e9fa"`
Dec 18 01:48:39.452 INFO [stdout] 852e809b5cf6508bd34c1f5d4660475b3ca968ed45f5b727dcf102f3db60e9fa