Sep 04 01:03:57.077 INFO checking tap-0.3.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 01:03:57.077 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 01:03:57.078 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 01:03:57.254 INFO blam! 785cef3408351d0efb81c2d58b788ece50299bc7ccb15759ca70caf523d22ee0
Sep 04 01:03:57.256 INFO running `"docker" "start" "-a" "785cef3408351d0efb81c2d58b788ece50299bc7ccb15759ca70caf523d22ee0"`
Sep 04 01:03:58.089 INFO kablam!     Checking tap v0.3.0 (file:///source)
Sep 04 01:03:58.383 INFO kablam! warning: variable does not need to be mutable
Sep 04 01:03:58.383 INFO kablam!   --> src/lib.rs:78:21
Sep 04 01:03:58.383 INFO kablam!    |
Sep 04 01:03:58.383 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Sep 04 01:03:58.383 INFO kablam!    |                     ----^^^
Sep 04 01:03:58.383 INFO kablam!    |                     |
Sep 04 01:03:58.383 INFO kablam!    |                     help: remove this `mut`
Sep 04 01:03:58.383 INFO kablam!    |
Sep 04 01:03:58.383 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 01:03:58.383 INFO kablam! 
Sep 04 01:03:58.403 INFO kablam! warning: unused `#[macro_use]` import
Sep 04 01:03:58.405 INFO kablam!   --> src/lib.rs:14:18
Sep 04 01:03:58.405 INFO kablam!    |
Sep 04 01:03:58.405 INFO kablam! 14 | #[cfg_attr(test, macro_use)]
Sep 04 01:03:58.405 INFO kablam!    |                  ^^^^^^^^^^
Sep 04 01:03:58.405 INFO kablam!    |
Sep 04 01:03:58.405 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 04 01:03:58.405 INFO kablam! 
Sep 04 01:03:58.597 INFO kablam! warning: variable does not need to be mutable
Sep 04 01:03:58.598 INFO kablam!   --> src/lib.rs:78:21
Sep 04 01:03:58.598 INFO kablam!    |
Sep 04 01:03:58.598 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Sep 04 01:03:58.598 INFO kablam!    |                     ----^^^
Sep 04 01:03:58.598 INFO kablam!    |                     |
Sep 04 01:03:58.598 INFO kablam!    |                     help: remove this `mut`
Sep 04 01:03:58.598 INFO kablam!    |
Sep 04 01:03:58.598 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 01:03:58.598 INFO kablam! 
Sep 04 01:03:58.625 INFO kablam! warning: variable does not need to be mutable
Sep 04 01:03:58.625 INFO kablam!    --> src/lib.rs:141:33
Sep 04 01:03:58.625 INFO kablam!     |
Sep 04 01:03:58.625 INFO kablam! 141 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Sep 04 01:03:58.625 INFO kablam!     |                                 ----^^^
Sep 04 01:03:58.625 INFO kablam!     |                                 |
Sep 04 01:03:58.625 INFO kablam!     |                                 help: remove this `mut`
Sep 04 01:03:58.625 INFO kablam! 
Sep 04 01:03:58.837 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Sep 04 01:03:58.840 INFO kablam! su: No module specific data is present
Sep 04 01:03:59.203 INFO running `"docker" "rm" "-f" "785cef3408351d0efb81c2d58b788ece50299bc7ccb15759ca70caf523d22ee0"`
Sep 04 01:03:59.347 INFO blam! 785cef3408351d0efb81c2d58b788ece50299bc7ccb15759ca70caf523d22ee0