Sep 04 01:04:00.258 INFO checking tap-0.2.1 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 01:04:00.258 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 01:04:00.258 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 01:04:00.433 INFO blam! c83cfa0f97338a940541fbd4e9dbce4efaa3a8359245ac6a88f0446624347690
Sep 04 01:04:00.436 INFO running `"docker" "start" "-a" "c83cfa0f97338a940541fbd4e9dbce4efaa3a8359245ac6a88f0446624347690"`
Sep 04 01:04:01.072 INFO kablam!     Checking tap v0.2.1 (file:///source)
Sep 04 01:04:01.365 INFO kablam! warning: variable does not need to be mutable
Sep 04 01:04:01.365 INFO kablam!   --> src/lib.rs:72:21
Sep 04 01:04:01.365 INFO kablam!    |
Sep 04 01:04:01.365 INFO kablam! 72 |         if let Some(mut val) = self.as_mut() {
Sep 04 01:04:01.365 INFO kablam!    |                     ----^^^
Sep 04 01:04:01.365 INFO kablam!    |                     |
Sep 04 01:04:01.365 INFO kablam!    |                     help: remove this `mut`
Sep 04 01:04:01.365 INFO kablam!    |
Sep 04 01:04:01.365 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 01:04:01.365 INFO kablam! 
Sep 04 01:04:01.365 INFO kablam! warning: unused `#[macro_use]` import
Sep 04 01:04:01.365 INFO kablam!  --> src/lib.rs:8:18
Sep 04 01:04:01.365 INFO kablam!   |
Sep 04 01:04:01.365 INFO kablam! 8 | #[cfg_attr(test, macro_use)]
Sep 04 01:04:01.365 INFO kablam!   |                  ^^^^^^^^^^
Sep 04 01:04:01.365 INFO kablam!   |
Sep 04 01:04:01.365 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 04 01:04:01.365 INFO kablam! 
Sep 04 01:04:01.612 INFO kablam! warning: variable does not need to be mutable
Sep 04 01:04:01.612 INFO kablam!   --> src/lib.rs:72:21
Sep 04 01:04:01.612 INFO kablam!    |
Sep 04 01:04:01.612 INFO kablam! 72 |         if let Some(mut val) = self.as_mut() {
Sep 04 01:04:01.612 INFO kablam!    |                     ----^^^
Sep 04 01:04:01.612 INFO kablam!    |                     |
Sep 04 01:04:01.612 INFO kablam!    |                     help: remove this `mut`
Sep 04 01:04:01.612 INFO kablam!    |
Sep 04 01:04:01.612 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 01:04:01.613 INFO kablam! 
Sep 04 01:04:01.645 INFO kablam! warning: variable does not need to be mutable
Sep 04 01:04:01.645 INFO kablam!    --> src/lib.rs:135:33
Sep 04 01:04:01.645 INFO kablam!     |
Sep 04 01:04:01.645 INFO kablam! 135 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Sep 04 01:04:01.645 INFO kablam!     |                                 ----^^^
Sep 04 01:04:01.645 INFO kablam!     |                                 |
Sep 04 01:04:01.645 INFO kablam!     |                                 help: remove this `mut`
Sep 04 01:04:01.645 INFO kablam! 
Sep 04 01:04:01.838 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Sep 04 01:04:01.841 INFO kablam! su: No module specific data is present
Sep 04 01:04:02.429 INFO running `"docker" "rm" "-f" "c83cfa0f97338a940541fbd4e9dbce4efaa3a8359245ac6a88f0446624347690"`
Sep 04 01:04:02.537 INFO blam! c83cfa0f97338a940541fbd4e9dbce4efaa3a8359245ac6a88f0446624347690