Jul 11 21:54:32.221 INFO checking shortcut-4.1.2 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 11 21:54:32.221 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 11 21:54:32.221 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 11 21:54:32.221 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-5/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 11 21:54:32.511 INFO blam! 763ba42a78472a820633a38d7499ed25dc763c33d82bec84525c1a7b6907f1cf
Jul 11 21:54:32.513 INFO running `"docker" "start" "-a" "763ba42a78472a820633a38d7499ed25dc763c33d82bec84525c1a7b6907f1cf"`
Jul 11 21:54:33.890 INFO kablam!     Checking shortcut v4.1.2 (file:///source)
Jul 11 21:54:34.608 INFO kablam! warning: variable does not need to be mutable
Jul 11 21:54:34.608 INFO kablam!   --> src/idx.rs:55:21
Jul 11 21:54:34.608 INFO kablam!    |
Jul 11 21:54:34.608 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Jul 11 21:54:34.608 INFO kablam!    |                     ----^
Jul 11 21:54:34.608 INFO kablam!    |                     |
Jul 11 21:54:34.608 INFO kablam!    |                     help: remove this `mut`
Jul 11 21:54:34.609 INFO kablam!    |
Jul 11 21:54:34.609 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 11 21:54:34.609 INFO kablam! 
Jul 11 21:54:35.404 INFO kablam! error[E0308]: mismatched types
Jul 11 21:54:35.404 INFO kablam!   --> benches/bench.rs:62:59
Jul 11 21:54:35.404 INFO kablam!    |
Jul 11 21:54:35.404 INFO kablam! 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Jul 11 21:54:35.404 INFO kablam!    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Jul 11 21:54:35.404 INFO kablam!    |
Jul 11 21:54:35.404 INFO kablam!    = note: expected type `std::borrow::Cow<'_, _>`
Jul 11 21:54:35.404 INFO kablam!               found type `std::string::String`
Jul 11 21:54:35.405 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)
Jul 11 21:54:35.405 INFO kablam! 
Jul 11 21:54:35.407 INFO kablam! warning: variable does not need to be mutable
Jul 11 21:54:35.407 INFO kablam!   --> src/idx.rs:55:21
Jul 11 21:54:35.407 INFO kablam!    |
Jul 11 21:54:35.407 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Jul 11 21:54:35.407 INFO kablam!    |                     ----^
Jul 11 21:54:35.408 INFO kablam!    |                     |
Jul 11 21:54:35.408 INFO kablam!    |                     help: remove this `mut`
Jul 11 21:54:35.408 INFO kablam!    |
Jul 11 21:54:35.408 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 11 21:54:35.408 INFO kablam! 
Jul 11 21:54:35.426 INFO kablam! error: aborting due to previous error
Jul 11 21:54:35.426 INFO kablam! 
Jul 11 21:54:35.426 INFO kablam! For more information about this error, try `rustc --explain E0308`.
Jul 11 21:54:35.433 INFO kablam! error: Could not compile `shortcut`.
Jul 11 21:54:35.433 INFO kablam! warning: build failed, waiting for other jobs to finish...
Jul 11 21:54:35.485 INFO kablam! error: build failed
Jul 11 21:54:35.487 INFO kablam! su: No module specific data is present
Jul 11 21:54:36.070 INFO running `"docker" "rm" "-f" "763ba42a78472a820633a38d7499ed25dc763c33d82bec84525c1a7b6907f1cf"`
Jul 11 21:54:36.194 INFO blam! 763ba42a78472a820633a38d7499ed25dc763c33d82bec84525c1a7b6907f1cf