Dec 18 13:25:05.173 INFO checking oncemutex-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:25:05.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/oncemutex/0.1.1:/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 13:25:05.544 INFO [stdout] ff14b99b0ab3efe4c3b5bfdfea05cbe948c8d6a9b0bd19a21e7cf707d675137e
Dec 18 13:25:05.552 INFO running `"docker" "start" "-a" "ff14b99b0ab3efe4c3b5bfdfea05cbe948c8d6a9b0bd19a21e7cf707d675137e"`
Dec 18 13:25:06.700 INFO [stderr]     Checking oncemutex v0.1.1 (/opt/crater/workdir)
Dec 18 13:25:07.080 INFO [stderr] error: unnecessary `unsafe` block
Dec 18 13:25:07.080 INFO [stderr]   --> src/lib.rs:86:9
Dec 18 13:25:07.080 INFO [stderr]    |
Dec 18 13:25:07.080 INFO [stderr] 86 |         unsafe { self.data.into_inner() }
Dec 18 13:25:07.080 INFO [stderr]    |         ^^^^^^ unnecessary `unsafe` block
Dec 18 13:25:07.080 INFO [stderr]    |
Dec 18 13:25:07.080 INFO [stderr] note: lint level defined here
Dec 18 13:25:07.080 INFO [stderr]   --> src/lib.rs:1:23
Dec 18 13:25:07.080 INFO [stderr]    |
Dec 18 13:25:07.080 INFO [stderr] 1  | #![deny(missing_docs, warnings)]
Dec 18 13:25:07.080 INFO [stderr]    |                       ^^^^^^^^
Dec 18 13:25:07.080 INFO [stderr]    = note: #[deny(unused_unsafe)] implied by #[deny(warnings)]
Dec 18 13:25:07.086 INFO [stderr] 
Dec 18 13:25:07.088 INFO [stderr] error: aborting due to previous error
Dec 18 13:25:07.088 INFO [stderr] 
Dec 18 13:25:07.097 INFO [stderr] error: Could not compile `oncemutex`.
Dec 18 13:25:07.097 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 13:25:07.293 INFO [stderr] error: unnecessary `unsafe` block
Dec 18 13:25:07.293 INFO [stderr]   --> src/lib.rs:86:9
Dec 18 13:25:07.293 INFO [stderr]    |
Dec 18 13:25:07.293 INFO [stderr] 86 |         unsafe { self.data.into_inner() }
Dec 18 13:25:07.293 INFO [stderr]    |         ^^^^^^ unnecessary `unsafe` block
Dec 18 13:25:07.293 INFO [stderr]    |
Dec 18 13:25:07.293 INFO [stderr] note: lint level defined here
Dec 18 13:25:07.293 INFO [stderr]   --> src/lib.rs:1:23
Dec 18 13:25:07.293 INFO [stderr]    |
Dec 18 13:25:07.293 INFO [stderr] 1  | #![deny(missing_docs, warnings)]
Dec 18 13:25:07.293 INFO [stderr]    |                       ^^^^^^^^
Dec 18 13:25:07.293 INFO [stderr]    = note: #[deny(unused_unsafe)] implied by #[deny(warnings)]
Dec 18 13:25:07.293 INFO [stderr] 
Dec 18 13:25:07.295 INFO [stderr] error: aborting due to previous error
Dec 18 13:25:07.295 INFO [stderr] 
Dec 18 13:25:07.304 INFO [stderr] error: Could not compile `oncemutex`.
Dec 18 13:25:07.304 INFO [stderr] 
Dec 18 13:25:07.305 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 13:25:08.096 INFO running `"docker" "inspect" "ff14b99b0ab3efe4c3b5bfdfea05cbe948c8d6a9b0bd19a21e7cf707d675137e"`
Dec 18 13:25:08.292 INFO running `"docker" "rm" "-f" "ff14b99b0ab3efe4c3b5bfdfea05cbe948c8d6a9b0bd19a21e7cf707d675137e"`
Dec 18 13:25:08.788 INFO [stdout] ff14b99b0ab3efe4c3b5bfdfea05cbe948c8d6a9b0bd19a21e7cf707d675137e