Aug 11 01:21:51.733 INFO checking specs_engine-0.0.3 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 01:21:51.733 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 01:21:51.733 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 01:21:51.733 INFO running `"docker" "create" "-v" "/tmp/crater.iciPIcO9ID96:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-5/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 01:21:51.978 INFO blam! 7ecf5ffc7d836a4596e8c51279dbca5b0c2d886c4fe1d66ab727ec462d21f6ac
Aug 11 01:21:51.981 INFO running `"docker" "start" "-a" "7ecf5ffc7d836a4596e8c51279dbca5b0c2d886c4fe1d66ab727ec462d21f6ac"`
Aug 11 01:21:52.964 INFO kablam!     Checking slog v1.7.1
Aug 11 01:21:52.965 INFO kablam!     Checking threadpool v1.7.1
Aug 11 01:21:52.965 INFO kablam!     Checking pulse v0.5.3
Aug 11 01:21:54.867 INFO kablam!     Checking specs v0.7.1
Aug 11 01:21:55.438 INFO kablam!     Checking slog-extra v0.1.2
Aug 11 01:21:56.501 INFO kablam!     Checking slog-stream v1.2.1
Aug 11 01:21:57.151 INFO kablam!     Checking slog-term v1.5.0
Aug 11 01:22:01.749 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Aug 11 01:22:03.072 INFO kablam! warning: variable does not need to be mutable
Aug 11 01:22:03.072 INFO kablam!   --> src/machine.rs:39:17
Aug 11 01:22:03.072 INFO kablam!    |
Aug 11 01:22:03.072 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Aug 11 01:22:03.072 INFO kablam!    |                 ----^^^^^
Aug 11 01:22:03.072 INFO kablam!    |                 |
Aug 11 01:22:03.072 INFO kablam!    |                 help: remove this `mut`
Aug 11 01:22:03.072 INFO kablam!    |
Aug 11 01:22:03.072 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 11 01:22:03.072 INFO kablam! 
Aug 11 01:22:03.079 INFO kablam! warning: variable does not need to be mutable
Aug 11 01:22:03.079 INFO kablam!   --> src/machine.rs:73:30
Aug 11 01:22:03.079 INFO kablam!    |
Aug 11 01:22:03.079 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Aug 11 01:22:03.079 INFO kablam!    |                              ----^^^^^
Aug 11 01:22:03.080 INFO kablam!    |                              |
Aug 11 01:22:03.080 INFO kablam!    |                              help: remove this `mut`
Aug 11 01:22:03.080 INFO kablam! 
Aug 11 01:22:03.484 INFO kablam! warning: variable does not need to be mutable
Aug 11 01:22:03.485 INFO kablam!   --> src/machine.rs:39:17
Aug 11 01:22:03.485 INFO kablam!    |
Aug 11 01:22:03.485 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Aug 11 01:22:03.485 INFO kablam!    |                 ----^^^^^
Aug 11 01:22:03.485 INFO kablam!    |                 |
Aug 11 01:22:03.485 INFO kablam!    |                 help: remove this `mut`
Aug 11 01:22:03.485 INFO kablam!    |
Aug 11 01:22:03.485 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 11 01:22:03.485 INFO kablam! 
Aug 11 01:22:03.492 INFO kablam! warning: variable does not need to be mutable
Aug 11 01:22:03.492 INFO kablam!   --> src/machine.rs:73:30
Aug 11 01:22:03.492 INFO kablam!    |
Aug 11 01:22:03.492 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Aug 11 01:22:03.492 INFO kablam!    |                              ----^^^^^
Aug 11 01:22:03.492 INFO kablam!    |                              |
Aug 11 01:22:03.492 INFO kablam!    |                              help: remove this `mut`
Aug 11 01:22:03.492 INFO kablam! 
Aug 11 01:22:04.326 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.47s
Aug 11 01:22:04.353 INFO kablam! su: No module specific data is present
Aug 11 01:22:05.112 INFO running `"docker" "rm" "-f" "7ecf5ffc7d836a4596e8c51279dbca5b0c2d886c4fe1d66ab727ec462d21f6ac"`
Aug 11 01:22:05.269 INFO blam! 7ecf5ffc7d836a4596e8c51279dbca5b0c2d886c4fe1d66ab727ec462d21f6ac