Sep 14 07:57:43.860 INFO checking tap-0.3.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 07:57:43.860 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 07:57:43.860 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-6/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 07:57:44.247 INFO blam! b308e59793ed0b02d50385ba6a8ede13ef16809e0965902b087f511ca79f1f78
Sep 14 07:57:44.252 INFO running `"docker" "start" "-a" "b308e59793ed0b02d50385ba6a8ede13ef16809e0965902b087f511ca79f1f78"`
Sep 14 07:57:45.958 INFO kablam! usermod: no changes
Sep 14 07:57:46.027 INFO kablam!     Checking tap v0.3.0 (file:///source)
Sep 14 07:57:46.291 INFO kablam! warning: variable does not need to be mutable
Sep 14 07:57:46.291 INFO kablam!   --> src/lib.rs:78:21
Sep 14 07:57:46.291 INFO kablam!    |
Sep 14 07:57:46.291 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Sep 14 07:57:46.291 INFO kablam!    |                     ----^^^
Sep 14 07:57:46.291 INFO kablam!    |                     |
Sep 14 07:57:46.291 INFO kablam!    |                     help: remove this `mut`
Sep 14 07:57:46.291 INFO kablam!    |
Sep 14 07:57:46.291 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 07:57:46.291 INFO kablam! 
Sep 14 07:57:46.579 INFO kablam! warning: unused `#[macro_use]` import
Sep 14 07:57:46.579 INFO kablam!   --> src/lib.rs:14:18
Sep 14 07:57:46.579 INFO kablam!    |
Sep 14 07:57:46.579 INFO kablam! 14 | #[cfg_attr(test, macro_use)]
Sep 14 07:57:46.579 INFO kablam!    |                  ^^^^^^^^^^
Sep 14 07:57:46.579 INFO kablam!    |
Sep 14 07:57:46.579 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 14 07:57:46.580 INFO kablam! 
Sep 14 07:57:46.711 INFO kablam! warning: variable does not need to be mutable
Sep 14 07:57:46.711 INFO kablam!   --> src/lib.rs:78:21
Sep 14 07:57:46.711 INFO kablam!    |
Sep 14 07:57:46.711 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Sep 14 07:57:46.711 INFO kablam!    |                     ----^^^
Sep 14 07:57:46.711 INFO kablam!    |                     |
Sep 14 07:57:46.711 INFO kablam!    |                     help: remove this `mut`
Sep 14 07:57:46.712 INFO kablam!    |
Sep 14 07:57:46.712 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 07:57:46.712 INFO kablam! 
Sep 14 07:57:46.738 INFO kablam! warning: variable does not need to be mutable
Sep 14 07:57:46.738 INFO kablam!    --> src/lib.rs:141:33
Sep 14 07:57:46.738 INFO kablam!     |
Sep 14 07:57:46.738 INFO kablam! 141 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Sep 14 07:57:46.738 INFO kablam!     |                                 ----^^^
Sep 14 07:57:46.738 INFO kablam!     |                                 |
Sep 14 07:57:46.738 INFO kablam!     |                                 help: remove this `mut`
Sep 14 07:57:46.747 INFO kablam! 
Sep 14 07:57:46.947 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Sep 14 07:57:46.950 INFO kablam! su: No module specific data is present
Sep 14 07:57:47.854 INFO running `"docker" "rm" "-f" "b308e59793ed0b02d50385ba6a8ede13ef16809e0965902b087f511ca79f1f78"`
Sep 14 07:57:47.939 INFO blam! b308e59793ed0b02d50385ba6a8ede13ef16809e0965902b087f511ca79f1f78