Aug 31 13:49:50.755 INFO checking shortcut-4.1.2 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 13:49:50.755 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 13:49:50.756 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 13:49:50.916 INFO blam! b9ec14ca069b45022693912ded402042bc52b8566aad4d9a0e8b2e395f7c2f1e
Aug 31 13:49:50.918 INFO running `"docker" "start" "-a" "b9ec14ca069b45022693912ded402042bc52b8566aad4d9a0e8b2e395f7c2f1e"`
Aug 31 13:49:51.586 INFO kablam!     Checking shortcut v4.1.2 (file:///source)
Aug 31 13:49:52.575 INFO kablam! warning: variable does not need to be mutable
Aug 31 13:49:52.575 INFO kablam!   --> src/idx.rs:55:21
Aug 31 13:49:52.575 INFO kablam!    |
Aug 31 13:49:52.575 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Aug 31 13:49:52.575 INFO kablam!    |                     ----^
Aug 31 13:49:52.575 INFO kablam!    |                     |
Aug 31 13:49:52.575 INFO kablam!    |                     help: remove this `mut`
Aug 31 13:49:52.575 INFO kablam!    |
Aug 31 13:49:52.575 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 13:49:52.576 INFO kablam! 
Aug 31 13:49:52.606 INFO kablam! warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Aug 31 13:49:52.606 INFO kablam!   --> src/lib.rs:29:25
Aug 31 13:49:52.606 INFO kablam!    |
Aug 31 13:49:52.606 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Aug 31 13:49:52.606 INFO kablam!    |                         ^^^^^^^^^^^^^^^^^
Aug 31 13:49:52.606 INFO kablam!    |
Aug 31 13:49:52.607 INFO kablam!    = note: #[warn(stable_features)] on by default
Aug 31 13:49:52.607 INFO kablam! 
Aug 31 13:49:52.607 INFO kablam! warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Aug 31 13:49:52.607 INFO kablam!   --> src/lib.rs:29:12
Aug 31 13:49:52.607 INFO kablam!    |
Aug 31 13:49:52.607 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Aug 31 13:49:52.607 INFO kablam!    |            ^^^^^^^^^^^
Aug 31 13:49:52.607 INFO kablam! 
Aug 31 13:49:52.984 INFO kablam! warning: variable does not need to be mutable
Aug 31 13:49:52.984 INFO kablam!   --> src/idx.rs:55:21
Aug 31 13:49:52.984 INFO kablam!    |
Aug 31 13:49:52.984 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Aug 31 13:49:52.984 INFO kablam!    |                     ----^
Aug 31 13:49:52.984 INFO kablam!    |                     |
Aug 31 13:49:52.984 INFO kablam!    |                     help: remove this `mut`
Aug 31 13:49:52.984 INFO kablam!    |
Aug 31 13:49:52.984 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 13:49:52.984 INFO kablam! 
Aug 31 13:49:53.018 INFO kablam! warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Aug 31 13:49:53.018 INFO kablam!   --> src/lib.rs:29:25
Aug 31 13:49:53.018 INFO kablam!    |
Aug 31 13:49:53.018 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Aug 31 13:49:53.018 INFO kablam!    |                         ^^^^^^^^^^^^^^^^^
Aug 31 13:49:53.018 INFO kablam!    |
Aug 31 13:49:53.018 INFO kablam!    = note: #[warn(stable_features)] on by default
Aug 31 13:49:53.019 INFO kablam! 
Aug 31 13:49:53.019 INFO kablam! warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Aug 31 13:49:53.019 INFO kablam!   --> src/lib.rs:29:12
Aug 31 13:49:53.019 INFO kablam!    |
Aug 31 13:49:53.019 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Aug 31 13:49:53.019 INFO kablam!    |            ^^^^^^^^^^^
Aug 31 13:49:53.019 INFO kablam! 
Aug 31 13:49:53.407 INFO kablam! error[E0308]: mismatched types
Aug 31 13:49:53.408 INFO kablam!   --> benches/bench.rs:62:59
Aug 31 13:49:53.408 INFO kablam!    |
Aug 31 13:49:53.408 INFO kablam! 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Aug 31 13:49:53.408 INFO kablam!    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Aug 31 13:49:53.408 INFO kablam!    |
Aug 31 13:49:53.408 INFO kablam!    = note: expected type `std::borrow::Cow<'_, _>`
Aug 31 13:49:53.408 INFO kablam!               found type `std::string::String`
Aug 31 13:49:53.408 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)
Aug 31 13:49:53.408 INFO kablam! 
Aug 31 13:49:53.423 INFO kablam! error: aborting due to previous error
Aug 31 13:49:53.423 INFO kablam! 
Aug 31 13:49:53.423 INFO kablam! For more information about this error, try `rustc --explain E0308`.
Aug 31 13:49:53.432 INFO kablam! error: Could not compile `shortcut`.
Aug 31 13:49:53.432 INFO kablam! 
Aug 31 13:49:53.432 INFO kablam! To learn more, run the command again with --verbose.
Aug 31 13:49:53.434 INFO kablam! su: No module specific data is present
Aug 31 13:49:53.769 INFO running `"docker" "rm" "-f" "b9ec14ca069b45022693912ded402042bc52b8566aad4d9a0e8b2e395f7c2f1e"`
Aug 31 13:49:53.866 INFO blam! b9ec14ca069b45022693912ded402042bc52b8566aad4d9a0e8b2e395f7c2f1e