Dec 01 00:46:56.334 INFO checking chan-0.1.23 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Dec 01 00:46:56.334 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Dec 01 00:46:56.790 INFO [stdout] cefa9255f0761e9f5c54cf787a03fb5382078f7eebc10a45dd8ad5430a0ee07e
Dec 01 00:46:56.792 INFO running `"docker" "start" "-a" "cefa9255f0761e9f5c54cf787a03fb5382078f7eebc10a45dd8ad5430a0ee07e"`
Dec 01 00:46:58.203 INFO [stderr] usermod: no changes
Dec 01 00:46:58.404 INFO [stderr]     Checking chan v0.1.23 (/source)
Dec 01 00:47:06.060 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.060 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 01 00:47:06.060 INFO [stderr]     |
Dec 01 00:47:06.060 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.060 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.060 INFO [stderr]     |                     |
Dec 01 00:47:06.060 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.060 INFO [stderr] ...
Dec 01 00:47:06.060 INFO [stderr] 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Dec 01 00:47:06.060 INFO [stderr]     | -------------------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.060 INFO [stderr]     |
Dec 01 00:47:06.060 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 01 00:47:06.060 INFO [stderr] 
Dec 01 00:47:06.061 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.061 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 01 00:47:06.061 INFO [stderr]     |
Dec 01 00:47:06.061 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.061 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.061 INFO [stderr]     |                     |
Dec 01 00:47:06.061 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.061 INFO [stderr] ...
Dec 01 00:47:06.061 INFO [stderr] 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Dec 01 00:47:06.061 INFO [stderr]     | -------------------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.061 INFO [stderr] 
Dec 01 00:47:06.067 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.067 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 01 00:47:06.067 INFO [stderr]     |
Dec 01 00:47:06.067 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.067 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.076 INFO [stderr]     |                     |
Dec 01 00:47:06.076 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.076 INFO [stderr] ...
Dec 01 00:47:06.076 INFO [stderr] 155 | bench_select_no_init!(select_no_init_chan_sync_buffered, chan::sync(1));
Dec 01 00:47:06.076 INFO [stderr]     | ------------------------------------------------------------------------ in this macro invocation
Dec 01 00:47:06.076 INFO [stderr] 
Dec 01 00:47:06.082 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.082 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 01 00:47:06.082 INFO [stderr]     |
Dec 01 00:47:06.082 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.082 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.082 INFO [stderr]     |                     |
Dec 01 00:47:06.082 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.082 INFO [stderr] ...
Dec 01 00:47:06.082 INFO [stderr] 156 | bench_select_no_init!(select_no_init_chan_sync_buffered_all, chan::sync(1000));
Dec 01 00:47:06.082 INFO [stderr]     | ------------------------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.088 INFO [stderr] 
Dec 01 00:47:06.094 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.094 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 01 00:47:06.094 INFO [stderr]     |
Dec 01 00:47:06.094 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.094 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.094 INFO [stderr]     |                     |
Dec 01 00:47:06.100 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.100 INFO [stderr] ...
Dec 01 00:47:06.100 INFO [stderr] 157 | bench_select_no_init!(select_no_init_chan_async, chan::async());
Dec 01 00:47:06.100 INFO [stderr]     | ---------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.100 INFO [stderr] 
Dec 01 00:47:06.106 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.106 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 01 00:47:06.107 INFO [stderr]     |
Dec 01 00:47:06.107 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.107 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.112 INFO [stderr]     |                     |
Dec 01 00:47:06.112 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.112 INFO [stderr] ...
Dec 01 00:47:06.112 INFO [stderr] 225 | bench_select_with_init!(select_with_init_chan_sync_unbuffered, chan::sync(0));
Dec 01 00:47:06.112 INFO [stderr]     | ------------------------------------------------------------------------------ in this macro invocation
Dec 01 00:47:06.112 INFO [stderr] 
Dec 01 00:47:06.118 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.118 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 01 00:47:06.118 INFO [stderr]     |
Dec 01 00:47:06.118 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.118 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.118 INFO [stderr]     |                     |
Dec 01 00:47:06.118 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.118 INFO [stderr] ...
Dec 01 00:47:06.118 INFO [stderr] 226 | bench_select_with_init!(select_with_init_chan_sync_buffered, chan::sync(1));
Dec 01 00:47:06.118 INFO [stderr]     | ---------------------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.118 INFO [stderr] 
Dec 01 00:47:06.124 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.124 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 01 00:47:06.124 INFO [stderr]     |
Dec 01 00:47:06.124 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.124 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.124 INFO [stderr]     |                     |
Dec 01 00:47:06.124 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.124 INFO [stderr] ...
Dec 01 00:47:06.124 INFO [stderr] 227 | bench_select_with_init!(select_with_init_chan_sync_buffered_all, chan::sync(1000));
Dec 01 00:47:06.124 INFO [stderr]     | ----------------------------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.132 INFO [stderr] 
Dec 01 00:47:06.138 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:47:06.138 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 01 00:47:06.138 INFO [stderr]     |
Dec 01 00:47:06.138 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 01 00:47:06.138 INFO [stderr]     |                     ----^^^^
Dec 01 00:47:06.144 INFO [stderr]     |                     |
Dec 01 00:47:06.144 INFO [stderr]     |                     help: remove this `mut`
Dec 01 00:47:06.144 INFO [stderr] ...
Dec 01 00:47:06.144 INFO [stderr] 228 | bench_select_with_init!(select_with_init_chan_async, chan::async());
Dec 01 00:47:06.144 INFO [stderr]     | -------------------------------------------------------------------- in this macro invocation
Dec 01 00:47:06.144 INFO [stderr] 
Dec 01 00:47:08.268 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.03s
Dec 01 00:47:08.288 INFO [stderr] su: No module specific data is present
Dec 01 00:47:09.202 INFO running `"docker" "inspect" "cefa9255f0761e9f5c54cf787a03fb5382078f7eebc10a45dd8ad5430a0ee07e"`
Dec 01 00:47:09.482 INFO running `"docker" "rm" "-f" "cefa9255f0761e9f5c54cf787a03fb5382078f7eebc10a45dd8ad5430a0ee07e"`
Dec 01 00:47:09.832 INFO [stdout] cefa9255f0761e9f5c54cf787a03fb5382078f7eebc10a45dd8ad5430a0ee07e