Nov 30 15:34:36.137 INFO checking shortcut-4.1.2 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 15:34:36.137 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 15:34:36.545 INFO [stdout] c40fbcc178eda3543bcf3b9ab9ad5e77b3ea279dc37f2b7f96d2c14e8e92bc12
Nov 30 15:34:36.547 INFO running `"docker" "start" "-a" "c40fbcc178eda3543bcf3b9ab9ad5e77b3ea279dc37f2b7f96d2c14e8e92bc12"`
Nov 30 15:34:37.735 INFO [stderr] usermod: no changes
Nov 30 15:34:37.876 INFO [stderr]     Checking shortcut v4.1.2 (/source)
Nov 30 15:34:38.784 INFO [stderr] warning: variable does not need to be mutable
Nov 30 15:34:38.784 INFO [stderr]   --> src/idx.rs:55:21
Nov 30 15:34:38.784 INFO [stderr]    |
Nov 30 15:34:38.784 INFO [stderr] 55 |         if let Some(mut l) = self.map.get_mut(key) {
Nov 30 15:34:38.784 INFO [stderr]    |                     ----^
Nov 30 15:34:38.784 INFO [stderr]    |                     |
Nov 30 15:34:38.784 INFO [stderr]    |                     help: remove this `mut`
Nov 30 15:34:38.784 INFO [stderr]    |
Nov 30 15:34:38.784 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 15:34:38.784 INFO [stderr] 
Nov 30 15:34:38.788 INFO [stderr] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 30 15:34:38.788 INFO [stderr]   --> src/lib.rs:29:25
Nov 30 15:34:38.789 INFO [stderr]    |
Nov 30 15:34:38.789 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 30 15:34:38.789 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^
Nov 30 15:34:38.789 INFO [stderr]    |
Nov 30 15:34:38.789 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 30 15:34:38.789 INFO [stderr] 
Nov 30 15:34:38.789 INFO [stderr] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 30 15:34:38.789 INFO [stderr]   --> src/lib.rs:29:12
Nov 30 15:34:38.789 INFO [stderr]    |
Nov 30 15:34:38.789 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 30 15:34:38.789 INFO [stderr]    |            ^^^^^^^^^^^
Nov 30 15:34:38.789 INFO [stderr] 
Nov 30 15:34:39.260 INFO [stderr] warning: variable does not need to be mutable
Nov 30 15:34:39.260 INFO [stderr]   --> src/idx.rs:55:21
Nov 30 15:34:39.260 INFO [stderr]    |
Nov 30 15:34:39.260 INFO [stderr] 55 |         if let Some(mut l) = self.map.get_mut(key) {
Nov 30 15:34:39.260 INFO [stderr]    |                     ----^
Nov 30 15:34:39.260 INFO [stderr]    |                     |
Nov 30 15:34:39.260 INFO [stderr]    |                     help: remove this `mut`
Nov 30 15:34:39.260 INFO [stderr]    |
Nov 30 15:34:39.260 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 15:34:39.260 INFO [stderr] 
Nov 30 15:34:39.269 INFO [stderr] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 30 15:34:39.269 INFO [stderr]   --> src/lib.rs:29:25
Nov 30 15:34:39.269 INFO [stderr]    |
Nov 30 15:34:39.269 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 30 15:34:39.269 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^
Nov 30 15:34:39.269 INFO [stderr]    |
Nov 30 15:34:39.270 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 30 15:34:39.270 INFO [stderr] 
Nov 30 15:34:39.270 INFO [stderr] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 30 15:34:39.270 INFO [stderr]   --> src/lib.rs:29:12
Nov 30 15:34:39.270 INFO [stderr]    |
Nov 30 15:34:39.270 INFO [stderr] 29 | #![feature(btree_range, collections_bound)]
Nov 30 15:34:39.270 INFO [stderr]    |            ^^^^^^^^^^^
Nov 30 15:34:39.270 INFO [stderr] 
Nov 30 15:34:40.460 INFO [stderr] error[E0308]: mismatched types
Nov 30 15:34:40.460 INFO [stderr]   --> benches/bench.rs:62:59
Nov 30 15:34:40.460 INFO [stderr]    |
Nov 30 15:34:40.460 INFO [stderr] 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Nov 30 15:34:40.460 INFO [stderr]    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Nov 30 15:34:40.460 INFO [stderr]    |
Nov 30 15:34:40.460 INFO [stderr]    = note: expected type `std::borrow::Cow<'_, _>`
Nov 30 15:34:40.460 INFO [stderr]               found type `std::string::String`
Nov 30 15:34:40.460 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 30 15:34:40.460 INFO [stderr] 
Nov 30 15:34:40.468 INFO [stderr] error: aborting due to previous error
Nov 30 15:34:40.468 INFO [stderr] 
Nov 30 15:34:40.468 INFO [stderr] For more information about this error, try `rustc --explain E0308`.
Nov 30 15:34:40.474 INFO [stderr] error: Could not compile `shortcut`.
Nov 30 15:34:40.475 INFO [stderr] 
Nov 30 15:34:40.475 INFO [stderr] To learn more, run the command again with --verbose.
Nov 30 15:34:40.476 INFO [stderr] su: No module specific data is present
Nov 30 15:34:41.202 INFO running `"docker" "inspect" "c40fbcc178eda3543bcf3b9ab9ad5e77b3ea279dc37f2b7f96d2c14e8e92bc12"`
Nov 30 15:34:41.478 INFO running `"docker" "rm" "-f" "c40fbcc178eda3543bcf3b9ab9ad5e77b3ea279dc37f2b7f96d2c14e8e92bc12"`
Nov 30 15:34:41.688 INFO [stdout] c40fbcc178eda3543bcf3b9ab9ad5e77b3ea279dc37f2b7f96d2c14e8e92bc12