Oct 13 08:35:57.518 INFO checking shortcut-4.1.2 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 08:35:57.518 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 08:35:57.952 INFO blam! 59d9b0310e4c898195296b686699ecd868ee01cb998edae549ae8e15e39a1deb
Oct 13 08:35:57.964 INFO running `"docker" "start" "-a" "59d9b0310e4c898195296b686699ecd868ee01cb998edae549ae8e15e39a1deb"`
Oct 13 08:35:59.308 INFO kablam! usermod: no changes
Oct 13 08:35:59.376 INFO kablam!     Checking shortcut v4.1.2 (/source)
Oct 13 08:36:00.685 INFO kablam! warning: variable does not need to be mutable
Oct 13 08:36:00.685 INFO kablam!   --> src/idx.rs:55:21
Oct 13 08:36:00.685 INFO kablam!    |
Oct 13 08:36:00.686 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Oct 13 08:36:00.686 INFO kablam!    |                     ----^
Oct 13 08:36:00.686 INFO kablam!    |                     |
Oct 13 08:36:00.687 INFO kablam!    |                     help: remove this `mut`
Oct 13 08:36:00.687 INFO kablam!    |
Oct 13 08:36:00.687 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 08:36:00.688 INFO kablam! 
Oct 13 08:36:00.692 INFO kablam! warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Oct 13 08:36:00.692 INFO kablam!   --> src/lib.rs:29:25
Oct 13 08:36:00.693 INFO kablam!    |
Oct 13 08:36:00.693 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Oct 13 08:36:00.693 INFO kablam!    |                         ^^^^^^^^^^^^^^^^^
Oct 13 08:36:00.694 INFO kablam!    |
Oct 13 08:36:00.694 INFO kablam!    = note: #[warn(stable_features)] on by default
Oct 13 08:36:00.694 INFO kablam! 
Oct 13 08:36:00.694 INFO kablam! warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Oct 13 08:36:00.695 INFO kablam!   --> src/lib.rs:29:12
Oct 13 08:36:00.695 INFO kablam!    |
Oct 13 08:36:00.695 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Oct 13 08:36:00.695 INFO kablam!    |            ^^^^^^^^^^^
Oct 13 08:36:00.696 INFO kablam! 
Oct 13 08:36:00.696 INFO kablam! warning: variable does not need to be mutable
Oct 13 08:36:00.696 INFO kablam!   --> src/idx.rs:55:21
Oct 13 08:36:00.696 INFO kablam!    |
Oct 13 08:36:00.697 INFO kablam! 55 |         if let Some(mut l) = self.map.get_mut(key) {
Oct 13 08:36:00.697 INFO kablam!    |                     ----^
Oct 13 08:36:00.697 INFO kablam!    |                     |
Oct 13 08:36:00.698 INFO kablam!    |                     help: remove this `mut`
Oct 13 08:36:00.698 INFO kablam!    |
Oct 13 08:36:00.698 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 08:36:00.698 INFO kablam! 
Oct 13 08:36:00.720 INFO kablam! warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
Oct 13 08:36:00.720 INFO kablam!   --> src/lib.rs:29:25
Oct 13 08:36:00.720 INFO kablam!    |
Oct 13 08:36:00.720 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Oct 13 08:36:00.720 INFO kablam!    |                         ^^^^^^^^^^^^^^^^^
Oct 13 08:36:00.720 INFO kablam!    |
Oct 13 08:36:00.720 INFO kablam!    = note: #[warn(stable_features)] on by default
Oct 13 08:36:00.720 INFO kablam! 
Oct 13 08:36:00.720 INFO kablam! warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
Oct 13 08:36:00.720 INFO kablam!   --> src/lib.rs:29:12
Oct 13 08:36:00.720 INFO kablam!    |
Oct 13 08:36:00.720 INFO kablam! 29 | #![feature(btree_range, collections_bound)]
Oct 13 08:36:00.720 INFO kablam!    |            ^^^^^^^^^^^
Oct 13 08:36:00.720 INFO kablam! 
Oct 13 08:36:02.070 INFO kablam! error[E0308]: mismatched types
Oct 13 08:36:02.070 INFO kablam!   --> benches/bench.rs:62:59
Oct 13 08:36:02.070 INFO kablam!    |
Oct 13 08:36:02.070 INFO kablam! 62 |             cmp: cmp::Comparison::Equal(cmp::Value::Const(format!("{}", i))),
Oct 13 08:36:02.070 INFO kablam!    |                                                           ^^^^^^^^^^^^^^^^ expected enum `std::borrow::Cow`, found struct `std::string::String`
Oct 13 08:36:02.070 INFO kablam!    |
Oct 13 08:36:02.070 INFO kablam!    = note: expected type `std::borrow::Cow<'_, _>`
Oct 13 08:36:02.070 INFO kablam!               found type `std::string::String`
Oct 13 08:36:02.070 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)
Oct 13 08:36:02.070 INFO kablam! 
Oct 13 08:36:02.079 INFO kablam! error: aborting due to previous error
Oct 13 08:36:02.079 INFO kablam! 
Oct 13 08:36:02.079 INFO kablam! For more information about this error, try `rustc --explain E0308`.
Oct 13 08:36:02.091 INFO kablam! error: Could not compile `shortcut`.
Oct 13 08:36:02.091 INFO kablam! 
Oct 13 08:36:02.091 INFO kablam! To learn more, run the command again with --verbose.
Oct 13 08:36:02.093 INFO kablam! su: No module specific data is present
Oct 13 08:36:02.465 INFO running `"docker" "rm" "-f" "59d9b0310e4c898195296b686699ecd868ee01cb998edae549ae8e15e39a1deb"`
Oct 13 08:36:02.825 INFO blam! 59d9b0310e4c898195296b686699ecd868ee01cb998edae549ae8e15e39a1deb