Nov 01 15:19:33.833 INFO checking tap-0.3.0 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 15:19:33.835 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-6/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +d7816399d50d407bbce1efe9dbadf8faaaf568fc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 15:19:34.346 INFO blam! c5f6331d712c766263c78affb1043a2fdae052b4d9c872eaeb83a1222535583e
Nov 01 15:19:34.354 INFO running `"docker" "start" "-a" "c5f6331d712c766263c78affb1043a2fdae052b4d9c872eaeb83a1222535583e"`
Nov 01 15:19:35.584 INFO kablam! usermod: no changes
Nov 01 15:19:35.632 INFO kablam!     Checking tap v0.3.0 (/source)
Nov 01 15:19:36.233 INFO kablam! warning: variable does not need to be mutable
Nov 01 15:19:36.234 INFO kablam!   --> src/lib.rs:78:21
Nov 01 15:19:36.234 INFO kablam!    |
Nov 01 15:19:36.234 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Nov 01 15:19:36.235 INFO kablam!    |                     ----^^^
Nov 01 15:19:36.235 INFO kablam!    |                     |
Nov 01 15:19:36.235 INFO kablam!    |                     help: remove this `mut`
Nov 01 15:19:36.235 INFO kablam!    |
Nov 01 15:19:36.235 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 15:19:36.235 INFO kablam! 
Nov 01 15:19:36.451 INFO kablam! warning: unused `#[macro_use]` import
Nov 01 15:19:36.451 INFO kablam!   --> src/lib.rs:14:18
Nov 01 15:19:36.451 INFO kablam!    |
Nov 01 15:19:36.452 INFO kablam! 14 | #[cfg_attr(test, macro_use)]
Nov 01 15:19:36.452 INFO kablam!    |                  ^^^^^^^^^
Nov 01 15:19:36.452 INFO kablam!    |
Nov 01 15:19:36.452 INFO kablam!    = note: #[warn(unused_imports)] on by default
Nov 01 15:19:36.452 INFO kablam! 
Nov 01 15:19:36.596 INFO kablam! warning: variable does not need to be mutable
Nov 01 15:19:36.597 INFO kablam!   --> src/lib.rs:78:21
Nov 01 15:19:36.597 INFO kablam!    |
Nov 01 15:19:36.597 INFO kablam! 78 |         if let Some(mut val) = self.as_mut() {
Nov 01 15:19:36.597 INFO kablam!    |                     ----^^^
Nov 01 15:19:36.597 INFO kablam!    |                     |
Nov 01 15:19:36.597 INFO kablam!    |                     help: remove this `mut`
Nov 01 15:19:36.597 INFO kablam!    |
Nov 01 15:19:36.597 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 15:19:36.597 INFO kablam! 
Nov 01 15:19:36.619 INFO kablam! warning: variable does not need to be mutable
Nov 01 15:19:36.619 INFO kablam!    --> src/lib.rs:141:33
Nov 01 15:19:36.619 INFO kablam!     |
Nov 01 15:19:36.619 INFO kablam! 141 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Nov 01 15:19:36.619 INFO kablam!     |                                 ----^^^
Nov 01 15:19:36.619 INFO kablam!     |                                 |
Nov 01 15:19:36.619 INFO kablam!     |                                 help: remove this `mut`
Nov 01 15:19:36.619 INFO kablam! 
Nov 01 15:19:37.090 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
Nov 01 15:19:37.095 INFO kablam! su: No module specific data is present
Nov 01 15:19:37.937 INFO running `"docker" "rm" "-f" "c5f6331d712c766263c78affb1043a2fdae052b4d9c872eaeb83a1222535583e"`
Nov 01 15:19:38.184 INFO blam! c5f6331d712c766263c78affb1043a2fdae052b4d9c872eaeb83a1222535583e