Nov 28 18:05:43.885 INFO checking shortcut-4.1.2 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 18:05:43.885 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 18:05:44.365 INFO [stdout] 8a75179c7d611aa9b04e82022de0ad6b69c1665bfae0b5a698ec4a89af35277b
Nov 28 18:05:44.367 INFO running `"docker" "start" "-a" "8a75179c7d611aa9b04e82022de0ad6b69c1665bfae0b5a698ec4a89af35277b"`
Nov 28 18:05:45.612 INFO [stderr] usermod: no changes
Nov 28 18:05:45.716 INFO [stderr]     Checking shortcut v4.1.2 (/source)
Nov 28 18:05:46.989 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:05:46.989 INFO [stderr]   --> src/idx.rs:55:21
Nov 28 18:05:46.989 INFO [stderr]    |
Nov 28 18:05:46.990 INFO [stderr] 55 |         if let Some(mut l) = self.map.get_mut(key) {
Nov 28 18:05:46.990 INFO [stderr]    |                     ----^
Nov 28 18:05:46.990 INFO [stderr]    |                     |
Nov 28 18:05:46.990 INFO [stderr]    |                     help: remove this `mut`
Nov 28 18:05:46.992 INFO [stderr]    |
Nov 28 18:05:46.992 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 18:05:46.993 INFO [stderr] 
Nov 28 18:05:47.004 INFO [stderr] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 28 18:05:47.004 INFO [stderr]   --> src/lib.rs:29:25
Nov 28 18:05:47.004 INFO [stderr]    |
Nov 28 18:05:47.005 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 28 18:05:47.005 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^
Nov 28 18:05:47.005 INFO [stderr]    |
Nov 28 18:05:47.005 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 28 18:05:47.006 INFO [stderr] 
Nov 28 18:05:47.006 INFO [stderr] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 28 18:05:47.006 INFO [stderr]   --> src/lib.rs:29:12
Nov 28 18:05:47.007 INFO [stderr]    |
Nov 28 18:05:47.007 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 28 18:05:47.007 INFO [stderr]    |            ^^^^^^^^^^^
Nov 28 18:05:47.007 INFO [stderr] 
Nov 28 18:05:47.020 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:05:47.020 INFO [stderr]   --> src/idx.rs:55:21
Nov 28 18:05:47.021 INFO [stderr]    |
Nov 28 18:05:47.021 INFO [stderr] 55 |         if let Some(mut l) = self.map.get_mut(key) {
Nov 28 18:05:47.021 INFO [stderr]    |                     ----^
Nov 28 18:05:47.021 INFO [stderr]    |                     |
Nov 28 18:05:47.021 INFO [stderr]    |                     help: remove this `mut`
Nov 28 18:05:47.021 INFO [stderr]    |
Nov 28 18:05:47.021 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 18:05:47.021 INFO [stderr] 
Nov 28 18:05:47.117 INFO [stderr] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 28 18:05:47.118 INFO [stderr]   --> src/lib.rs:29:25
Nov 28 18:05:47.118 INFO [stderr]    |
Nov 28 18:05:47.118 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 28 18:05:47.118 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^
Nov 28 18:05:47.118 INFO [stderr]    |
Nov 28 18:05:47.119 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 28 18:05:47.119 INFO [stderr] 
Nov 28 18:05:47.119 INFO [stderr] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 28 18:05:47.119 INFO [stderr]   --> src/lib.rs:29:12
Nov 28 18:05:47.119 INFO [stderr]    |
Nov 28 18:05:47.119 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 28 18:05:47.119 INFO [stderr]    |            ^^^^^^^^^^^
Nov 28 18:05:47.119 INFO [stderr] 
Nov 28 18:05:48.612 INFO [stderr] error[E0308]: mismatched types
Nov 28 18:05:48.612 INFO [stderr]   --> benches/bench.rs:62:59
Nov 28 18:05:48.612 INFO [stderr]    |
Nov 28 18:05:48.612 INFO [stderr] 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Nov 28 18:05:48.612 INFO [stderr]    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Nov 28 18:05:48.612 INFO [stderr]    |
Nov 28 18:05:48.612 INFO [stderr]    = note: expected type `std::borrow::Cow<'_, _>`
Nov 28 18:05:48.612 INFO [stderr]               found type `std::string::String`
Nov 28 18:05:48.612 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)
Nov 28 18:05:48.612 INFO [stderr] 
Nov 28 18:05:48.624 INFO [stderr] error: aborting due to previous error
Nov 28 18:05:48.624 INFO [stderr] 
Nov 28 18:05:48.624 INFO [stderr] For more information about this error, try `rustc --explain E0308`.
Nov 28 18:05:48.632 INFO [stderr] error: Could not compile `shortcut`.
Nov 28 18:05:48.632 INFO [stderr] 
Nov 28 18:05:48.632 INFO [stderr] To learn more, run the command again with --verbose.
Nov 28 18:05:48.632 INFO [stderr] su: No module specific data is present
Nov 28 18:05:49.152 INFO running `"docker" "inspect" "8a75179c7d611aa9b04e82022de0ad6b69c1665bfae0b5a698ec4a89af35277b"`
Nov 28 18:05:49.461 INFO running `"docker" "rm" "-f" "8a75179c7d611aa9b04e82022de0ad6b69c1665bfae0b5a698ec4a89af35277b"`
Nov 28 18:05:49.844 INFO [stdout] 8a75179c7d611aa9b04e82022de0ad6b69c1665bfae0b5a698ec4a89af35277b