Dec 05 06:44:30.168 INFO checking shortcut-4.1.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 06:44:30.168 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 06:44:30.630 INFO [stdout] 44913fdf288cbaa537c11715270f68004183e47aa204acfbd7a28fb011f6d291
Dec 05 06:44:30.632 INFO running `"docker" "start" "-a" "44913fdf288cbaa537c11715270f68004183e47aa204acfbd7a28fb011f6d291"`
Dec 05 06:44:31.823 INFO [stderr] usermod: no changes
Dec 05 06:44:31.918 INFO [stderr]     Checking shortcut v4.1.2 (/source)
Dec 05 06:44:32.838 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:44:32.839 INFO [stderr]   --> src/idx.rs:55:21
Dec 05 06:44:32.839 INFO [stderr]    |
Dec 05 06:44:32.839 INFO [stderr] 55 |         if let Some(mut l) = self.map.get_mut(key) {
Dec 05 06:44:32.839 INFO [stderr]    |                     ----^
Dec 05 06:44:32.839 INFO [stderr]    |                     |
Dec 05 06:44:32.839 INFO [stderr]    |                     help: remove this `mut`
Dec 05 06:44:32.839 INFO [stderr]    |
Dec 05 06:44:32.839 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 06:44:32.839 INFO [stderr] 
Dec 05 06:44:32.846 INFO [stderr] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Dec 05 06:44:32.846 INFO [stderr]   --> src/lib.rs:29:25
Dec 05 06:44:32.846 INFO [stderr]    |
Dec 05 06:44:32.846 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Dec 05 06:44:32.846 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^
Dec 05 06:44:32.846 INFO [stderr]    |
Dec 05 06:44:32.846 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 05 06:44:32.846 INFO [stderr] 
Dec 05 06:44:32.846 INFO [stderr] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Dec 05 06:44:32.846 INFO [stderr]   --> src/lib.rs:29:12
Dec 05 06:44:32.846 INFO [stderr]    |
Dec 05 06:44:32.846 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Dec 05 06:44:32.846 INFO [stderr]    |            ^^^^^^^^^^^
Dec 05 06:44:32.847 INFO [stderr] 
Dec 05 06:44:33.399 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:44:33.399 INFO [stderr]   --> src/idx.rs:55:21
Dec 05 06:44:33.399 INFO [stderr]    |
Dec 05 06:44:33.399 INFO [stderr] 55 |         if let Some(mut l) = self.map.get_mut(key) {
Dec 05 06:44:33.399 INFO [stderr]    |                     ----^
Dec 05 06:44:33.399 INFO [stderr]    |                     |
Dec 05 06:44:33.399 INFO [stderr]    |                     help: remove this `mut`
Dec 05 06:44:33.399 INFO [stderr]    |
Dec 05 06:44:33.399 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 06:44:33.399 INFO [stderr] 
Dec 05 06:44:33.455 INFO [stderr] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Dec 05 06:44:33.455 INFO [stderr]   --> src/lib.rs:29:25
Dec 05 06:44:33.455 INFO [stderr]    |
Dec 05 06:44:33.455 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Dec 05 06:44:33.455 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^
Dec 05 06:44:33.455 INFO [stderr]    |
Dec 05 06:44:33.455 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 05 06:44:33.455 INFO [stderr] 
Dec 05 06:44:33.455 INFO [stderr] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Dec 05 06:44:33.455 INFO [stderr]   --> src/lib.rs:29:12
Dec 05 06:44:33.455 INFO [stderr]    |
Dec 05 06:44:33.455 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Dec 05 06:44:33.455 INFO [stderr]    |            ^^^^^^^^^^^
Dec 05 06:44:33.455 INFO [stderr] 
Dec 05 06:44:34.479 INFO [stderr] error[E0308]: mismatched types
Dec 05 06:44:34.479 INFO [stderr]   --> benches/bench.rs:62:59
Dec 05 06:44:34.479 INFO [stderr]    |
Dec 05 06:44:34.479 INFO [stderr] 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Dec 05 06:44:34.479 INFO [stderr]    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Dec 05 06:44:34.479 INFO [stderr]    |
Dec 05 06:44:34.479 INFO [stderr]    = note: expected type `std::borrow::Cow<'_, _>`
Dec 05 06:44:34.479 INFO [stderr]               found type `std::string::String`
Dec 05 06:44:34.479 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 06:44:34.479 INFO [stderr] 
Dec 05 06:44:34.487 INFO [stderr] error: aborting due to previous error
Dec 05 06:44:34.487 INFO [stderr] 
Dec 05 06:44:34.487 INFO [stderr] For more information about this error, try `rustc --explain E0308`.
Dec 05 06:44:34.491 INFO [stderr] error: Could not compile `shortcut`.
Dec 05 06:44:34.491 INFO [stderr] 
Dec 05 06:44:34.491 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 06:44:34.499 INFO [stderr] su: No module specific data is present
Dec 05 06:44:35.076 INFO running `"docker" "inspect" "44913fdf288cbaa537c11715270f68004183e47aa204acfbd7a28fb011f6d291"`
Dec 05 06:44:35.363 INFO running `"docker" "rm" "-f" "44913fdf288cbaa537c11715270f68004183e47aa204acfbd7a28fb011f6d291"`
Dec 05 06:44:35.619 INFO [stdout] 44913fdf288cbaa537c11715270f68004183e47aa204acfbd7a28fb011f6d291