Sep 04 05:46:27.514 INFO checking specs_engine-0.0.3 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 05:46:27.514 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 05:46:27.514 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 05:46:27.716 INFO blam! 27e7bac9a4723809f2688065a5c330c8889538bebd4af2e9fac356804409f0b5
Sep 04 05:46:27.717 INFO running `"docker" "start" "-a" "27e7bac9a4723809f2688065a5c330c8889538bebd4af2e9fac356804409f0b5"`
Sep 04 05:46:28.501 INFO kablam!     Checking slog v1.7.1
Sep 04 05:46:28.502 INFO kablam!     Checking specs v0.7.1
Sep 04 05:46:29.253 INFO kablam!     Checking slog-extra v0.1.2
Sep 04 05:46:29.801 INFO kablam!     Checking slog-stream v1.2.1
Sep 04 05:46:30.288 INFO kablam!     Checking slog-term v1.5.0
Sep 04 05:46:32.260 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Sep 04 05:46:33.714 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:33.714 INFO kablam!   --> src/machine.rs:39:17
Sep 04 05:46:33.714 INFO kablam!    |
Sep 04 05:46:33.714 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 04 05:46:33.714 INFO kablam!    |                 ----^^^^^
Sep 04 05:46:33.714 INFO kablam!    |                 |
Sep 04 05:46:33.714 INFO kablam!    |                 help: remove this `mut`
Sep 04 05:46:33.714 INFO kablam!    |
Sep 04 05:46:33.714 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 05:46:33.714 INFO kablam! 
Sep 04 05:46:33.720 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:33.720 INFO kablam!   --> src/machine.rs:73:30
Sep 04 05:46:33.720 INFO kablam!    |
Sep 04 05:46:33.720 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 04 05:46:33.720 INFO kablam!    |                              ----^^^^^
Sep 04 05:46:33.720 INFO kablam!    |                              |
Sep 04 05:46:33.720 INFO kablam!    |                              help: remove this `mut`
Sep 04 05:46:33.720 INFO kablam! 
Sep 04 05:46:33.842 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:33.842 INFO kablam!   --> src/machine.rs:39:17
Sep 04 05:46:33.842 INFO kablam!    |
Sep 04 05:46:33.843 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 04 05:46:33.843 INFO kablam!    |                 ----^^^^^
Sep 04 05:46:33.843 INFO kablam!    |                 |
Sep 04 05:46:33.843 INFO kablam!    |                 help: remove this `mut`
Sep 04 05:46:33.843 INFO kablam!    |
Sep 04 05:46:33.843 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 05:46:33.843 INFO kablam! 
Sep 04 05:46:33.851 INFO kablam! warning: variable does not need to be mutable
Sep 04 05:46:33.851 INFO kablam!   --> src/machine.rs:73:30
Sep 04 05:46:33.851 INFO kablam!    |
Sep 04 05:46:33.851 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 04 05:46:33.851 INFO kablam!    |                              ----^^^^^
Sep 04 05:46:33.851 INFO kablam!    |                              |
Sep 04 05:46:33.851 INFO kablam!    |                              help: remove this `mut`
Sep 04 05:46:33.851 INFO kablam! 
Sep 04 05:46:34.576 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.14s
Sep 04 05:46:34.583 INFO kablam! su: No module specific data is present
Sep 04 05:46:35.096 INFO running `"docker" "rm" "-f" "27e7bac9a4723809f2688065a5c330c8889538bebd4af2e9fac356804409f0b5"`
Sep 04 05:46:35.216 INFO blam! 27e7bac9a4723809f2688065a5c330c8889538bebd4af2e9fac356804409f0b5