Dec 19 21:52:09.897 INFO checking SmilingNavern/rconsole against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:52:09.897 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:52:10.428 INFO [stdout] f3474c988512bebf5fe8bc807a18c51d55b7af1d08c62355c4544fbcdb84e8a2
Dec 19 21:52:10.428 INFO running `"docker" "start" "-a" "f3474c988512bebf5fe8bc807a18c51d55b7af1d08c62355c4544fbcdb84e8a2"`
Dec 19 21:52:11.914 INFO [stderr]     Checking rconsole v0.1.0 (/opt/crater/workdir)
Dec 19 21:52:12.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:12.436 INFO [stderr]   --> src/main.rs:32:9
Dec 19 21:52:12.436 INFO [stderr]    |
Dec 19 21:52:12.436 INFO [stderr] 32 |         sysreq_fh.write(key.as_bytes());
Dec 19 21:52:12.436 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:12.436 INFO [stderr]    |
Dec 19 21:52:12.436 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:52:12.436 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:12.436 INFO [stderr] 
Dec 19 21:52:12.436 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:12.436 INFO [stderr]   --> src/main.rs:53:13
Dec 19 21:52:12.436 INFO [stderr]    |
Dec 19 21:52:12.436 INFO [stderr] 53 |             do_sysreq(&mut stream, c.to_lowercase(), sysreq_fh);
Dec 19 21:52:12.436 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:12.436 INFO [stderr]    |
Dec 19 21:52:12.436 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:12.436 INFO [stderr] 
Dec 19 21:52:12.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:12.471 INFO [stderr]   --> src/main.rs:32:9
Dec 19 21:52:12.471 INFO [stderr]    |
Dec 19 21:52:12.471 INFO [stderr] 32 |         sysreq_fh.write(key.as_bytes());
Dec 19 21:52:12.471 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:12.471 INFO [stderr]    |
Dec 19 21:52:12.471 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:52:12.471 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:12.471 INFO [stderr] 
Dec 19 21:52:12.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:52:12.471 INFO [stderr]   --> src/main.rs:53:13
Dec 19 21:52:12.471 INFO [stderr]    |
Dec 19 21:52:12.471 INFO [stderr] 53 |             do_sysreq(&mut stream, c.to_lowercase(), sysreq_fh);
Dec 19 21:52:12.471 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:52:12.471 INFO [stderr]    |
Dec 19 21:52:12.471 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:52:12.471 INFO [stderr] 
Dec 19 21:52:12.536 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 19 21:52:13.177 INFO running `"docker" "inspect" "f3474c988512bebf5fe8bc807a18c51d55b7af1d08c62355c4544fbcdb84e8a2"`
Dec 19 21:52:13.500 INFO running `"docker" "rm" "-f" "f3474c988512bebf5fe8bc807a18c51d55b7af1d08c62355c4544fbcdb84e8a2"`
Dec 19 21:52:13.876 INFO [stdout] f3474c988512bebf5fe8bc807a18c51d55b7af1d08c62355c4544fbcdb84e8a2