Sep 14 08:40:57.527 INFO checking specs_engine-0.0.3 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 08:40:57.527 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 08:40:57.527 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-5/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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=1000" "-e" "CMD=cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 08:40:57.939 INFO blam! 38b7bf89de04f946436973994023f019dc7a2acc035c32ff4e2e02925e7eca25
Sep 14 08:40:57.944 INFO running `"docker" "start" "-a" "38b7bf89de04f946436973994023f019dc7a2acc035c32ff4e2e02925e7eca25"`
Sep 14 08:40:59.259 INFO kablam! usermod: no changes
Sep 14 08:40:59.375 INFO kablam!     Checking slog v1.7.1
Sep 14 08:40:59.375 INFO kablam!     Checking pulse v0.5.3
Sep 14 08:41:00.347 INFO kablam!     Checking specs v0.7.1
Sep 14 08:41:00.349 INFO kablam!     Checking slog-extra v0.1.2
Sep 14 08:41:01.256 INFO kablam!     Checking slog-stream v1.2.1
Sep 14 08:41:01.887 INFO kablam!     Checking slog-term v1.5.0
Sep 14 08:41:04.047 INFO kablam!     Checking specs_engine v0.0.3 (file:///source)
Sep 14 08:41:05.563 INFO kablam! warning: variable does not need to be mutable
Sep 14 08:41:05.563 INFO kablam!   --> src/machine.rs:39:17
Sep 14 08:41:05.563 INFO kablam!    |
Sep 14 08:41:05.563 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 14 08:41:05.563 INFO kablam!    |                 ----^^^^^
Sep 14 08:41:05.563 INFO kablam!    |                 |
Sep 14 08:41:05.563 INFO kablam!    |                 help: remove this `mut`
Sep 14 08:41:05.563 INFO kablam!    |
Sep 14 08:41:05.579 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 08:41:05.579 INFO kablam! 
Sep 14 08:41:05.591 INFO kablam! warning: variable does not need to be mutable
Sep 14 08:41:05.591 INFO kablam!   --> src/machine.rs:73:30
Sep 14 08:41:05.591 INFO kablam!    |
Sep 14 08:41:05.591 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 14 08:41:05.591 INFO kablam!    |                              ----^^^^^
Sep 14 08:41:05.591 INFO kablam!    |                              |
Sep 14 08:41:05.591 INFO kablam!    |                              help: remove this `mut`
Sep 14 08:41:05.591 INFO kablam! 
Sep 14 08:41:05.715 INFO kablam! warning: variable does not need to be mutable
Sep 14 08:41:05.715 INFO kablam!   --> src/machine.rs:39:17
Sep 14 08:41:05.715 INFO kablam!    |
Sep 14 08:41:05.715 INFO kablam! 39 |             let mut state = self._stack.last_mut().expect("Called long update without a state in the stack!");
Sep 14 08:41:05.715 INFO kablam!    |                 ----^^^^^
Sep 14 08:41:05.715 INFO kablam!    |                 |
Sep 14 08:41:05.715 INFO kablam!    |                 help: remove this `mut`
Sep 14 08:41:05.715 INFO kablam!    |
Sep 14 08:41:05.715 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 08:41:05.715 INFO kablam! 
Sep 14 08:41:05.727 INFO kablam! warning: variable does not need to be mutable
Sep 14 08:41:05.727 INFO kablam!   --> src/machine.rs:73:30
Sep 14 08:41:05.727 INFO kablam!    |
Sep 14 08:41:05.727 INFO kablam! 73 |                  if let Some(mut state) = self._stack.last_mut() {
Sep 14 08:41:05.727 INFO kablam!    |                              ----^^^^^
Sep 14 08:41:05.727 INFO kablam!    |                              |
Sep 14 08:41:05.727 INFO kablam!    |                              help: remove this `mut`
Sep 14 08:41:05.727 INFO kablam! 
Sep 14 08:41:06.472 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.19s
Sep 14 08:41:06.476 INFO kablam! su: No module specific data is present
Sep 14 08:41:08.028 INFO running `"docker" "rm" "-f" "38b7bf89de04f946436973994023f019dc7a2acc035c32ff4e2e02925e7eca25"`
Sep 14 08:41:08.374 INFO blam! 38b7bf89de04f946436973994023f019dc7a2acc035c32ff4e2e02925e7eca25