Dec 19 21:52:10.917 INFO checking SmilingNavern/rconsole against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:52:10.917 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/SmilingNavern/rconsole:/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 21:52:11.385 INFO [stdout] eb2c3e6bb1960cce01224179529fd7e81d7b0598c463798e716e058ca1ca9853
Dec 19 21:52:11.389 INFO running `"docker" "start" "-a" "eb2c3e6bb1960cce01224179529fd7e81d7b0598c463798e716e058ca1ca9853"`
Dec 19 21:52:13.196 INFO [stderr]     Checking rconsole v0.1.0 (/opt/crater/workdir)
Dec 19 21:52:13.557 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:13.557 INFO [stderr]   --> src/main.rs:32:9
Dec 19 21:52:13.557 INFO [stderr]    |
Dec 19 21:52:13.557 INFO [stderr] 32 |         sysreq_fh.write(key.as_bytes());
Dec 19 21:52:13.557 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:13.557 INFO [stderr]    |
Dec 19 21:52:13.557 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:52:13.557 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:13.557 INFO [stderr] 
Dec 19 21:52:13.557 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:13.557 INFO [stderr]   --> src/main.rs:53:13
Dec 19 21:52:13.557 INFO [stderr]    |
Dec 19 21:52:13.557 INFO [stderr] 53 |             do_sysreq(&mut stream, c.to_lowercase(), sysreq_fh);
Dec 19 21:52:13.557 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:13.557 INFO [stderr]    |
Dec 19 21:52:13.557 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:13.557 INFO [stderr] 
Dec 19 21:52:13.720 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:13.720 INFO [stderr]   --> src/main.rs:32:9
Dec 19 21:52:13.720 INFO [stderr]    |
Dec 19 21:52:13.720 INFO [stderr] 32 |         sysreq_fh.write(key.as_bytes());
Dec 19 21:52:13.720 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:13.720 INFO [stderr]    |
Dec 19 21:52:13.720 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:52:13.720 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:13.720 INFO [stderr] 
Dec 19 21:52:13.720 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:13.720 INFO [stderr]   --> src/main.rs:53:13
Dec 19 21:52:13.720 INFO [stderr]    |
Dec 19 21:52:13.720 INFO [stderr] 53 |             do_sysreq(&mut stream, c.to_lowercase(), sysreq_fh);
Dec 19 21:52:13.720 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:13.720 INFO [stderr]    |
Dec 19 21:52:13.720 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:13.720 INFO [stderr] 
Dec 19 21:52:13.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Dec 19 21:52:14.344 INFO running `"docker" "inspect" "eb2c3e6bb1960cce01224179529fd7e81d7b0598c463798e716e058ca1ca9853"`
Dec 19 21:52:14.652 INFO running `"docker" "rm" "-f" "eb2c3e6bb1960cce01224179529fd7e81d7b0598c463798e716e058ca1ca9853"`
Dec 19 21:52:14.964 INFO [stdout] eb2c3e6bb1960cce01224179529fd7e81d7b0598c463798e716e058ca1ca9853