Nov 01 16:17:06.979 INFO checking shortcut-4.1.2 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 16:17:06.979 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-1/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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 01 16:17:07.254 INFO blam! ea0bdc775fa343ca73cf4db5d0dec7d307e13f34f41d5a4506ac35e76b54579e
Nov 01 16:17:07.264 INFO running `"docker" "start" "-a" "ea0bdc775fa343ca73cf4db5d0dec7d307e13f34f41d5a4506ac35e76b54579e"`
Nov 01 16:17:08.260 INFO kablam! usermod: no changes
Nov 01 16:17:08.404 INFO kablam!     Checking shortcut v4.1.2 (/source)
Nov 01 16:17:09.348 INFO kablam! warning: variable does not need to be mutable
Nov 01 16:17:09.348 INFO kablam!   --> src/idx.rs:55:21
Nov 01 16:17:09.348 INFO kablam!    |
Nov 01 16:17:09.348 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Nov 01 16:17:09.348 INFO kablam!    |                     ----^
Nov 01 16:17:09.348 INFO kablam!    |                     |
Nov 01 16:17:09.348 INFO kablam!    |                     help: remove this `mut`
Nov 01 16:17:09.348 INFO kablam!    |
Nov 01 16:17:09.348 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 16:17:09.348 INFO kablam! 
Nov 01 16:17:09.356 INFO kablam! warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 01 16:17:09.356 INFO kablam!   --> src/lib.rs:29:25
Nov 01 16:17:09.356 INFO kablam!    |
Nov 01 16:17:09.356 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Nov 01 16:17:09.356 INFO kablam!    |                         ^^^^^^^^^^^^^^^^^
Nov 01 16:17:09.356 INFO kablam!    |
Nov 01 16:17:09.356 INFO kablam!    = note: #[warn(stable_features)] on by default
Nov 01 16:17:09.356 INFO kablam! 
Nov 01 16:17:09.356 INFO kablam! warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 01 16:17:09.356 INFO kablam!   --> src/lib.rs:29:12
Nov 01 16:17:09.356 INFO kablam!    |
Nov 01 16:17:09.356 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Nov 01 16:17:09.356 INFO kablam!    |            ^^^^^^^^^^^
Nov 01 16:17:09.356 INFO kablam! 
Nov 01 16:17:10.089 INFO kablam! warning: variable does not need to be mutable
Nov 01 16:17:10.089 INFO kablam!   --> src/idx.rs:55:21
Nov 01 16:17:10.089 INFO kablam!    |
Nov 01 16:17:10.089 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Nov 01 16:17:10.089 INFO kablam!    |                     ----^
Nov 01 16:17:10.089 INFO kablam!    |                     |
Nov 01 16:17:10.092 INFO kablam!    |                     help: remove this `mut`
Nov 01 16:17:10.092 INFO kablam!    |
Nov 01 16:17:10.092 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 16:17:10.092 INFO kablam! 
Nov 01 16:17:10.140 INFO kablam! warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 01 16:17:10.140 INFO kablam!   --> src/lib.rs:29:25
Nov 01 16:17:10.140 INFO kablam!    |
Nov 01 16:17:10.140 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Nov 01 16:17:10.140 INFO kablam!    |                         ^^^^^^^^^^^^^^^^^
Nov 01 16:17:10.140 INFO kablam!    |
Nov 01 16:17:10.140 INFO kablam!    = note: #[warn(stable_features)] on by default
Nov 01 16:17:10.140 INFO kablam! 
Nov 01 16:17:10.140 INFO kablam! warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Nov 01 16:17:10.140 INFO kablam!   --> src/lib.rs:29:12
Nov 01 16:17:10.140 INFO kablam!    |
Nov 01 16:17:10.140 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Nov 01 16:17:10.140 INFO kablam!    |            ^^^^^^^^^^^
Nov 01 16:17:10.140 INFO kablam! 
Nov 01 16:17:11.084 INFO kablam! error[E0308]: mismatched types
Nov 01 16:17:11.085 INFO kablam!   --> benches/bench.rs:62:59
Nov 01 16:17:11.085 INFO kablam!    |
Nov 01 16:17:11.086 INFO kablam! 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Nov 01 16:17:11.086 INFO kablam!    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Nov 01 16:17:11.086 INFO kablam!    |
Nov 01 16:17:11.086 INFO kablam!    = note: expected type `std::borrow::Cow<'_, _>`
Nov 01 16:17:11.086 INFO kablam!               found type `std::string::String`
Nov 01 16:17:11.086 INFO kablam!    = 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 01 16:17:11.086 INFO kablam! 
Nov 01 16:17:11.095 INFO kablam! error: aborting due to previous error
Nov 01 16:17:11.096 INFO kablam! 
Nov 01 16:17:11.096 INFO kablam! For more information about this error, try `rustc --explain E0308`.
Nov 01 16:17:11.106 INFO kablam! error: Could not compile `shortcut`.
Nov 01 16:17:11.106 INFO kablam! 
Nov 01 16:17:11.106 INFO kablam! To learn more, run the command again with --verbose.
Nov 01 16:17:11.108 INFO kablam! su: No module specific data is present
Nov 01 16:17:11.952 INFO running `"docker" "rm" "-f" "ea0bdc775fa343ca73cf4db5d0dec7d307e13f34f41d5a4506ac35e76b54579e"`
Nov 01 16:17:12.257 INFO blam! ea0bdc775fa343ca73cf4db5d0dec7d307e13f34f41d5a4506ac35e76b54579e