Nov 30 14:35:27.545 INFO checking tap-0.3.0 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 14:35:27.545 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 14:35:27.906 INFO [stdout] 63ae0512d5415cecc0442f9b6521063e1bb72ca9cdaa9a683896d59b3fefa076
Nov 30 14:35:27.908 INFO running `"docker" "start" "-a" "63ae0512d5415cecc0442f9b6521063e1bb72ca9cdaa9a683896d59b3fefa076"`
Nov 30 14:35:28.967 INFO [stderr] usermod: no changes
Nov 30 14:35:29.004 INFO [stderr]     Checking tap v0.3.0 (/source)
Nov 30 14:35:29.480 INFO [stderr] warning: variable does not need to be mutable
Nov 30 14:35:29.480 INFO [stderr]   --> src/lib.rs:78:21
Nov 30 14:35:29.480 INFO [stderr]    |
Nov 30 14:35:29.480 INFO [stderr] 78 |         if let Some(mut val) = self.as_mut() {
Nov 30 14:35:29.480 INFO [stderr]    |                     ----^^^
Nov 30 14:35:29.480 INFO [stderr]    |                     |
Nov 30 14:35:29.480 INFO [stderr]    |                     help: remove this `mut`
Nov 30 14:35:29.480 INFO [stderr]    |
Nov 30 14:35:29.480 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 14:35:29.480 INFO [stderr] 
Nov 30 14:35:29.598 INFO [stderr] warning: unused `#[macro_use]` import
Nov 30 14:35:29.598 INFO [stderr]   --> src/lib.rs:14:18
Nov 30 14:35:29.598 INFO [stderr]    |
Nov 30 14:35:29.598 INFO [stderr] 14 | #[cfg_attr(test, macro_use)]
Nov 30 14:35:29.598 INFO [stderr]    |                  ^^^^^^^^^
Nov 30 14:35:29.598 INFO [stderr]    |
Nov 30 14:35:29.598 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 30 14:35:29.598 INFO [stderr] 
Nov 30 14:35:29.719 INFO [stderr] warning: variable does not need to be mutable
Nov 30 14:35:29.719 INFO [stderr]   --> src/lib.rs:78:21
Nov 30 14:35:29.719 INFO [stderr]    |
Nov 30 14:35:29.719 INFO [stderr] 78 |         if let Some(mut val) = self.as_mut() {
Nov 30 14:35:29.719 INFO [stderr]    |                     ----^^^
Nov 30 14:35:29.719 INFO [stderr]    |                     |
Nov 30 14:35:29.719 INFO [stderr]    |                     help: remove this `mut`
Nov 30 14:35:29.719 INFO [stderr]    |
Nov 30 14:35:29.719 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 14:35:29.719 INFO [stderr] 
Nov 30 14:35:29.729 INFO [stderr] warning: variable does not need to be mutable
Nov 30 14:35:29.729 INFO [stderr]    --> src/lib.rs:141:33
Nov 30 14:35:29.729 INFO [stderr]     |
Nov 30 14:35:29.729 INFO [stderr] 141 |         let mutated = base.tap(|mut arr| for elt in arr.iter_mut() {
Nov 30 14:35:29.729 INFO [stderr]     |                                 ----^^^
Nov 30 14:35:29.729 INFO [stderr]     |                                 |
Nov 30 14:35:29.729 INFO [stderr]     |                                 help: remove this `mut`
Nov 30 14:35:29.729 INFO [stderr] 
Nov 30 14:35:30.037 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Nov 30 14:35:30.039 INFO [stderr] su: No module specific data is present
Nov 30 14:35:30.371 INFO running `"docker" "inspect" "63ae0512d5415cecc0442f9b6521063e1bb72ca9cdaa9a683896d59b3fefa076"`
Nov 30 14:35:30.492 INFO running `"docker" "rm" "-f" "63ae0512d5415cecc0442f9b6521063e1bb72ca9cdaa9a683896d59b3fefa076"`
Nov 30 14:35:30.607 INFO [stdout] 63ae0512d5415cecc0442f9b6521063e1bb72ca9cdaa9a683896d59b3fefa076