Dec 18 16:56:30.413 INFO checking double-0.2.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:56:30.413 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/double/0.2.2:/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 16:56:30.584 INFO [stdout] 8943cbfdcb0e6036260e94583db7f6ce79da48e1e48920239492a4c2780d01bf
Dec 18 16:56:30.586 INFO running `"docker" "start" "-a" "8943cbfdcb0e6036260e94583db7f6ce79da48e1e48920239492a4c2780d01bf"`
Dec 18 16:56:31.398 INFO [stderr]    Compiling double v0.2.2 (/opt/crater/workdir)
Dec 18 16:56:32.860 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 16:56:32.860 INFO [stderr]    --> src/mock.rs:917:13
Dec 18 16:56:32.860 INFO [stderr]     |
Dec 18 16:56:32.860 INFO [stderr] 917 |             (0..self.num_expectations));
Dec 18 16:56:32.860 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 16:56:32.896 INFO [stderr]     |
Dec 18 16:56:32.896 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 16:56:32.896 INFO [stderr] 
Dec 18 16:56:32.896 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 16:56:32.896 INFO [stderr]    --> src/mock.rs:917:13
Dec 18 16:56:32.896 INFO [stderr]     |
Dec 18 16:56:32.896 INFO [stderr] 917 |             (0..self.num_expectations));
Dec 18 16:56:32.896 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 16:56:32.896 INFO [stderr]     |
Dec 18 16:56:32.896 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 16:56:32.896 INFO [stderr] 
Dec 18 16:56:33.824 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 16:56:33.824 INFO [stderr]   --> examples/macro.rs:95:9
Dec 18 16:56:33.824 INFO [stderr]    |
Dec 18 16:56:33.824 INFO [stderr] 95 |         (42),
Dec 18 16:56:33.824 INFO [stderr]    |         ^^^^ help: remove these parentheses
Dec 18 16:56:33.824 INFO [stderr] 
Dec 18 16:56:33.824 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 16:56:33.824 INFO [stderr]    --> examples/macro.rs:104:40
Dec 18 16:56:33.824 INFO [stderr]     |
Dec 18 16:56:33.824 INFO [stderr] 104 |     store.delete_user.return_value_for((42), Ok(()));
Dec 18 16:56:33.824 INFO [stderr]     |                                        ^^^^ help: remove these parentheses
Dec 18 16:56:33.824 INFO [stderr] 
Dec 18 16:56:34.108 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 16:56:34.108 INFO [stderr]   --> examples/function.rs:36:26
Dec 18 16:56:34.108 INFO [stderr]    |
Dec 18 16:56:34.108 INFO [stderr] 36 |     mock.use_closure_for((3), Box::new(|x| x * 2));
Dec 18 16:56:34.108 INFO [stderr]    |                          ^^^ help: remove these parentheses
Dec 18 16:56:34.108 INFO [stderr]    |
Dec 18 16:56:34.108 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 16:56:34.108 INFO [stderr] 
Dec 18 16:56:34.832 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
Dec 18 16:56:35.366 INFO running `"docker" "inspect" "8943cbfdcb0e6036260e94583db7f6ce79da48e1e48920239492a4c2780d01bf"`
Dec 18 16:56:35.539 INFO running `"docker" "rm" "-f" "8943cbfdcb0e6036260e94583db7f6ce79da48e1e48920239492a4c2780d01bf"`
Dec 18 16:56:35.691 INFO [stdout] 8943cbfdcb0e6036260e94583db7f6ce79da48e1e48920239492a4c2780d01bf