Sep 06 05:39:35.812 INFO checking handoff_counter-0.8.5 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 05:39:35.812 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 05:39:35.812 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 05:39:36.031 INFO blam! 3975de23801c263b966ecfd6a5d02f8638e1fd198a7ebacc096deb79d091680d
Sep 06 05:39:36.033 INFO running `"docker" "start" "-a" "3975de23801c263b966ecfd6a5d02f8638e1fd198a7ebacc096deb79d091680d"`
Sep 06 05:39:37.186 INFO kablam! usermod: no changes
Sep 06 05:39:37.283 INFO kablam!     Checking handoff_counter v0.8.5 (file:///source)
Sep 06 05:39:37.878 INFO kablam! warning: variable does not need to be mutable
Sep 06 05:39:37.878 INFO kablam!   --> src/handoff_counter.rs:55:13
Sep 06 05:39:37.878 INFO kablam!    |
Sep 06 05:39:37.878 INFO kablam! 55 |         let mut v = self.vals.get_mut(&self.id).unwrap();
Sep 06 05:39:37.878 INFO kablam!    |             ----^
Sep 06 05:39:37.878 INFO kablam!    |             |
Sep 06 05:39:37.878 INFO kablam!    |             help: remove this `mut`
Sep 06 05:39:37.878 INFO kablam!    |
Sep 06 05:39:37.878 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 06 05:39:37.878 INFO kablam! 
Sep 06 05:39:37.894 INFO kablam! warning: variable does not need to be mutable
Sep 06 05:39:37.894 INFO kablam!   --> src/handoff_counter.rs:55:13
Sep 06 05:39:37.894 INFO kablam!    |
Sep 06 05:39:37.894 INFO kablam! 55 |         let mut v = self.vals.get_mut(&self.id).unwrap();
Sep 06 05:39:37.894 INFO kablam!    |             ----^
Sep 06 05:39:37.894 INFO kablam!    |             |
Sep 06 05:39:37.894 INFO kablam!    |             help: remove this `mut`
Sep 06 05:39:37.894 INFO kablam!    |
Sep 06 05:39:37.894 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 06 05:39:37.894 INFO kablam! 
Sep 06 05:39:38.430 INFO kablam! warning: type alias is never used: `Env`
Sep 06 05:39:38.430 INFO kablam!   --> src/bin/simulate.rs:14:1
Sep 06 05:39:38.430 INFO kablam!    |
Sep 06 05:39:38.430 INFO kablam! 14 | type Env<'a> = HashMap<&'a str, Cnt<'a>>;
Sep 06 05:39:38.430 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 05:39:38.430 INFO kablam!    |
Sep 06 05:39:38.430 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 06 05:39:38.430 INFO kablam! 
Sep 06 05:39:38.590 INFO kablam! warning: type alias is never used: `Env`
Sep 06 05:39:38.590 INFO kablam!   --> src/bin/simulate.rs:14:1
Sep 06 05:39:38.590 INFO kablam!    |
Sep 06 05:39:38.590 INFO kablam! 14 | type Env<'a> = HashMap<&'a str, Cnt<'a>>;
Sep 06 05:39:38.590 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 05:39:38.590 INFO kablam!    |
Sep 06 05:39:38.590 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 06 05:39:38.590 INFO kablam! 
Sep 06 05:39:38.610 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Sep 06 05:39:38.616 INFO kablam! su: No module specific data is present
Sep 06 05:39:39.264 INFO running `"docker" "rm" "-f" "3975de23801c263b966ecfd6a5d02f8638e1fd198a7ebacc096deb79d091680d"`
Sep 06 05:39:39.379 INFO blam! 3975de23801c263b966ecfd6a5d02f8638e1fd198a7ebacc096deb79d091680d