Sep 19 17:13:01.305 INFO checking tap-0.3.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 17:13:01.305 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 17:13:01.305 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-0/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 17:13:01.580 INFO blam! f5b710570e1286c1d80607c4080d2d689ab25f4748ed4e038b6d84fc2b2db1e7
Sep 19 17:13:01.582 INFO running `"docker" "start" "-a" "f5b710570e1286c1d80607c4080d2d689ab25f4748ed4e038b6d84fc2b2db1e7"`
Sep 19 17:13:02.655 INFO kablam! usermod: no changes
Sep 19 17:13:02.690 INFO kablam!     Checking tap v0.3.0 (/source)
Sep 19 17:13:02.846 INFO kablam! warning: variable does not need to be mutable
Sep 19 17:13:02.847 INFO kablam!   --> src/lib.rs:78:21
Sep 19 17:13:02.847 INFO kablam!    |
Sep 19 17:13:02.847 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Sep 19 17:13:02.847 INFO kablam!    |                     ----^^^
Sep 19 17:13:02.847 INFO kablam!    |                     |
Sep 19 17:13:02.847 INFO kablam!    |                     help: remove this `mut`
Sep 19 17:13:02.847 INFO kablam!    |
Sep 19 17:13:02.847 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 17:13:02.847 INFO kablam! 
Sep 19 17:13:02.874 INFO kablam! warning: unused `#[macro_use]` import
Sep 19 17:13:02.874 INFO kablam!   --> src/lib.rs:14:18
Sep 19 17:13:02.874 INFO kablam!    |
Sep 19 17:13:02.874 INFO kablam! 14 | #[cfg_attr(test, macro_use)]
Sep 19 17:13:02.874 INFO kablam!    |                  ^^^^^^^^^^
Sep 19 17:13:02.874 INFO kablam!    |
Sep 19 17:13:02.874 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 19 17:13:02.874 INFO kablam! 
Sep 19 17:13:02.991 INFO kablam! warning: variable does not need to be mutable
Sep 19 17:13:02.991 INFO kablam!   --> src/lib.rs:78:21
Sep 19 17:13:02.991 INFO kablam!    |
Sep 19 17:13:02.991 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Sep 19 17:13:02.991 INFO kablam!    |                     ----^^^
Sep 19 17:13:02.991 INFO kablam!    |                     |
Sep 19 17:13:02.991 INFO kablam!    |                     help: remove this `mut`
Sep 19 17:13:02.991 INFO kablam!    |
Sep 19 17:13:02.991 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 17:13:02.991 INFO kablam! 
Sep 19 17:13:03.006 INFO kablam! warning: variable does not need to be mutable
Sep 19 17:13:03.006 INFO kablam!    --> src/lib.rs:141:33
Sep 19 17:13:03.006 INFO kablam!     |
Sep 19 17:13:03.006 INFO kablam! 141 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Sep 19 17:13:03.006 INFO kablam!     |                                 ----^^^
Sep 19 17:13:03.007 INFO kablam!     |                                 |
Sep 19 17:13:03.007 INFO kablam!     |                                 help: remove this `mut`
Sep 19 17:13:03.007 INFO kablam! 
Sep 19 17:13:03.145 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Sep 19 17:13:03.147 INFO kablam! su: No module specific data is present
Sep 19 17:13:03.631 INFO running `"docker" "rm" "-f" "f5b710570e1286c1d80607c4080d2d689ab25f4748ed4e038b6d84fc2b2db1e7"`
Sep 19 17:13:03.731 INFO blam! f5b710570e1286c1d80607c4080d2d689ab25f4748ed4e038b6d84fc2b2db1e7