Sep 06 08:53:33.961 INFO checking chan-0.1.23 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 08:53:33.961 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 08:53:33.961 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 08:53:34.177 INFO blam! 3b4c09008b1b64c0ed2bdd1c9aedf652618e7f866f079a697a337d5a1aa5f1c2
Sep 06 08:53:34.179 INFO running `"docker" "start" "-a" "3b4c09008b1b64c0ed2bdd1c9aedf652618e7f866f079a697a337d5a1aa5f1c2"`
Sep 06 08:53:35.518 INFO kablam! usermod: no changes
Sep 06 08:53:35.748 INFO kablam!     Checking chan v0.1.23 (file:///source)
Sep 06 08:53:39.558 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.558 INFO kablam!    --> benches/throughput.rs:112:21
Sep 06 08:53:39.558 INFO kablam!     |
Sep 06 08:53:39.558 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.558 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.558 INFO kablam!     |                     |
Sep 06 08:53:39.558 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.558 INFO kablam! ...
Sep 06 08:53:39.558 INFO kablam! 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Sep 06 08:53:39.558 INFO kablam!     | -------------------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.558 INFO kablam!     |
Sep 06 08:53:39.558 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 06 08:53:39.558 INFO kablam! 
Sep 06 08:53:39.558 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.558 INFO kablam!    --> benches/throughput.rs:112:21
Sep 06 08:53:39.558 INFO kablam!     |
Sep 06 08:53:39.558 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.558 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.558 INFO kablam!     |                     |
Sep 06 08:53:39.558 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.558 INFO kablam! ...
Sep 06 08:53:39.558 INFO kablam! 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Sep 06 08:53:39.558 INFO kablam!     | -------------------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.558 INFO kablam! 
Sep 06 08:53:39.562 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.562 INFO kablam!    --> benches/throughput.rs:112:21
Sep 06 08:53:39.562 INFO kablam!     |
Sep 06 08:53:39.562 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.562 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.562 INFO kablam!     |                     |
Sep 06 08:53:39.562 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.562 INFO kablam! ...
Sep 06 08:53:39.562 INFO kablam! 155 | bench_select_no_init!(select_no_init_chan_sync_buffered, chan::sync(1));
Sep 06 08:53:39.562 INFO kablam!     | ------------------------------------------------------------------------ in this macro invocation
Sep 06 08:53:39.562 INFO kablam! 
Sep 06 08:53:39.578 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.578 INFO kablam!    --> benches/throughput.rs:112:21
Sep 06 08:53:39.578 INFO kablam!     |
Sep 06 08:53:39.578 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.578 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.578 INFO kablam!     |                     |
Sep 06 08:53:39.578 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.578 INFO kablam! ...
Sep 06 08:53:39.578 INFO kablam! 156 | bench_select_no_init!(select_no_init_chan_sync_buffered_all, chan::sync(1000));
Sep 06 08:53:39.578 INFO kablam!     | ------------------------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.578 INFO kablam! 
Sep 06 08:53:39.587 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.588 INFO kablam!    --> benches/throughput.rs:112:21
Sep 06 08:53:39.588 INFO kablam!     |
Sep 06 08:53:39.588 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.588 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.588 INFO kablam!     |                     |
Sep 06 08:53:39.588 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.588 INFO kablam! ...
Sep 06 08:53:39.588 INFO kablam! 157 | bench_select_no_init!(select_no_init_chan_async, chan::async());
Sep 06 08:53:39.588 INFO kablam!     | ---------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.588 INFO kablam! 
Sep 06 08:53:39.630 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.630 INFO kablam!    --> benches/throughput.rs:182:21
Sep 06 08:53:39.630 INFO kablam!     |
Sep 06 08:53:39.630 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.630 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.630 INFO kablam!     |                     |
Sep 06 08:53:39.630 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.630 INFO kablam! ...
Sep 06 08:53:39.630 INFO kablam! 225 | bench_select_with_init!(select_with_init_chan_sync_unbuffered, chan::sync(0));
Sep 06 08:53:39.630 INFO kablam!     | ------------------------------------------------------------------------------ in this macro invocation
Sep 06 08:53:39.630 INFO kablam! 
Sep 06 08:53:39.634 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.634 INFO kablam!    --> benches/throughput.rs:182:21
Sep 06 08:53:39.634 INFO kablam!     |
Sep 06 08:53:39.634 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.634 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.634 INFO kablam!     |                     |
Sep 06 08:53:39.634 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.634 INFO kablam! ...
Sep 06 08:53:39.634 INFO kablam! 226 | bench_select_with_init!(select_with_init_chan_sync_buffered, chan::sync(1));
Sep 06 08:53:39.634 INFO kablam!     | ---------------------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.634 INFO kablam! 
Sep 06 08:53:39.647 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.647 INFO kablam!    --> benches/throughput.rs:182:21
Sep 06 08:53:39.647 INFO kablam!     |
Sep 06 08:53:39.647 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.647 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.647 INFO kablam!     |                     |
Sep 06 08:53:39.647 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.647 INFO kablam! ...
Sep 06 08:53:39.647 INFO kablam! 227 | bench_select_with_init!(select_with_init_chan_sync_buffered_all, chan::sync(1000));
Sep 06 08:53:39.647 INFO kablam!     | ----------------------------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.647 INFO kablam! 
Sep 06 08:53:39.657 INFO kablam! warning: variable does not need to be mutable
Sep 06 08:53:39.657 INFO kablam!    --> benches/throughput.rs:182:21
Sep 06 08:53:39.657 INFO kablam!     |
Sep 06 08:53:39.657 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Sep 06 08:53:39.658 INFO kablam!     |                     ----^^^^
Sep 06 08:53:39.658 INFO kablam!     |                     |
Sep 06 08:53:39.658 INFO kablam!     |                     help: remove this `mut`
Sep 06 08:53:39.658 INFO kablam! ...
Sep 06 08:53:39.658 INFO kablam! 228 | bench_select_with_init!(select_with_init_chan_async, chan::async());
Sep 06 08:53:39.658 INFO kablam!     | -------------------------------------------------------------------- in this macro invocation
Sep 06 08:53:39.658 INFO kablam! 
Sep 06 08:53:39.992 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.45s
Sep 06 08:53:40.014 INFO kablam! su: No module specific data is present
Sep 06 08:53:40.681 INFO running `"docker" "rm" "-f" "3b4c09008b1b64c0ed2bdd1c9aedf652618e7f866f079a697a337d5a1aa5f1c2"`
Sep 06 08:53:40.794 INFO blam! 3b4c09008b1b64c0ed2bdd1c9aedf652618e7f866f079a697a337d5a1aa5f1c2