Sep 01 04:32:33.328 INFO checking tap-0.2.1 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 04:32:33.328 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 04:32:33.328 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 04:32:33.494 INFO blam! 394c70962b8dc4e60ace8d76bb37296ff523e9dcf1849bba52ac1a28cd30376d
Sep 01 04:32:33.495 INFO running `"docker" "start" "-a" "394c70962b8dc4e60ace8d76bb37296ff523e9dcf1849bba52ac1a28cd30376d"`
Sep 01 04:32:34.185 INFO kablam!     Checking tap v0.2.1 (file:///source)
Sep 01 04:32:34.485 INFO kablam! warning: unused `#[macro_use]` import
Sep 01 04:32:34.486 INFO kablam!  --> src/lib.rs:8:18
Sep 01 04:32:34.486 INFO kablam!   |
Sep 01 04:32:34.486 INFO kablam! 8 | #[cfg_attr(test, macro_use)]
Sep 01 04:32:34.486 INFO kablam!   |                  ^^^^^^^^^^
Sep 01 04:32:34.486 INFO kablam!   |
Sep 01 04:32:34.486 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 04:32:34.486 INFO kablam! 
Sep 01 04:32:34.509 INFO kablam! warning: variable does not need to be mutable
Sep 01 04:32:34.509 INFO kablam!   --> src/lib.rs:72:21
Sep 01 04:32:34.509 INFO kablam!    |
Sep 01 04:32:34.509 INFO kablam! 72 |         if let Some(mut val) = self.as_mut() {
Sep 01 04:32:34.509 INFO kablam!    |                     ----^^^
Sep 01 04:32:34.509 INFO kablam!    |                     |
Sep 01 04:32:34.509 INFO kablam!    |                     help: remove this `mut`
Sep 01 04:32:34.509 INFO kablam!    |
Sep 01 04:32:34.509 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 04:32:34.509 INFO kablam! 
Sep 01 04:32:34.671 INFO kablam! warning: variable does not need to be mutable
Sep 01 04:32:34.671 INFO kablam!   --> src/lib.rs:72:21
Sep 01 04:32:34.671 INFO kablam!    |
Sep 01 04:32:34.671 INFO kablam! 72 |         if let Some(mut val) = self.as_mut() {
Sep 01 04:32:34.671 INFO kablam!    |                     ----^^^
Sep 01 04:32:34.671 INFO kablam!    |                     |
Sep 01 04:32:34.671 INFO kablam!    |                     help: remove this `mut`
Sep 01 04:32:34.672 INFO kablam!    |
Sep 01 04:32:34.672 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 04:32:34.672 INFO kablam! 
Sep 01 04:32:34.703 INFO kablam! warning: variable does not need to be mutable
Sep 01 04:32:34.703 INFO kablam!    --> src/lib.rs:135:33
Sep 01 04:32:34.703 INFO kablam!     |
Sep 01 04:32:34.703 INFO kablam! 135 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Sep 01 04:32:34.703 INFO kablam!     |                                 ----^^^
Sep 01 04:32:34.703 INFO kablam!     |                                 |
Sep 01 04:32:34.703 INFO kablam!     |                                 help: remove this `mut`
Sep 01 04:32:34.703 INFO kablam! 
Sep 01 04:32:34.926 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Sep 01 04:32:34.928 INFO kablam! su: No module specific data is present
Sep 01 04:32:35.558 INFO running `"docker" "rm" "-f" "394c70962b8dc4e60ace8d76bb37296ff523e9dcf1849bba52ac1a28cd30376d"`
Sep 01 04:32:35.645 INFO blam! 394c70962b8dc4e60ace8d76bb37296ff523e9dcf1849bba52ac1a28cd30376d