Dec 05 15:30:04.504 INFO checking chan-0.1.23 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 15:30:04.504 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 15:30:04.968 INFO [stdout] aeb9127e34bc98a684e659b69a02e352a4a999af999265d86b9407a0e6572c37
Dec 05 15:30:04.970 INFO running `"docker" "start" "-a" "aeb9127e34bc98a684e659b69a02e352a4a999af999265d86b9407a0e6572c37"`
Dec 05 15:30:06.439 INFO [stderr] usermod: no changes
Dec 05 15:30:06.687 INFO [stderr]     Checking chan v0.1.23 (/source)
Dec 05 15:30:06.695 INFO [stderr]     Checking hyper v0.7.2
Dec 05 15:30:18.987 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:18.987 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 05 15:30:18.987 INFO [stderr]     |
Dec 05 15:30:18.987 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:18.987 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:18.987 INFO [stderr]     |                     |
Dec 05 15:30:18.987 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:18.987 INFO [stderr] ...
Dec 05 15:30:18.987 INFO [stderr] 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Dec 05 15:30:18.987 INFO [stderr]     | -------------------------------------------------------------------------- in this macro invocation
Dec 05 15:30:18.987 INFO [stderr]     |
Dec 05 15:30:19.002 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 15:30:19.003 INFO [stderr] 
Dec 05 15:30:19.003 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.003 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 05 15:30:19.003 INFO [stderr]     |
Dec 05 15:30:19.003 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.003 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.003 INFO [stderr]     |                     |
Dec 05 15:30:19.003 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.003 INFO [stderr] ...
Dec 05 15:30:19.003 INFO [stderr] 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Dec 05 15:30:19.003 INFO [stderr]     | -------------------------------------------------------------------------- in this macro invocation
Dec 05 15:30:19.003 INFO [stderr] 
Dec 05 15:30:19.011 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.011 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 05 15:30:19.011 INFO [stderr]     |
Dec 05 15:30:19.011 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.011 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.011 INFO [stderr]     |                     |
Dec 05 15:30:19.011 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.011 INFO [stderr] ...
Dec 05 15:30:19.011 INFO [stderr] 155 | bench_select_no_init!(select_no_init_chan_sync_buffered, chan::sync(1));
Dec 05 15:30:19.011 INFO [stderr]     | ------------------------------------------------------------------------ in this macro invocation
Dec 05 15:30:19.011 INFO [stderr] 
Dec 05 15:30:19.013 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.013 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 05 15:30:19.013 INFO [stderr]     |
Dec 05 15:30:19.013 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.013 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.013 INFO [stderr]     |                     |
Dec 05 15:30:19.013 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.013 INFO [stderr] ...
Dec 05 15:30:19.013 INFO [stderr] 156 | bench_select_no_init!(select_no_init_chan_sync_buffered_all, chan::sync(1000));
Dec 05 15:30:19.013 INFO [stderr]     | ------------------------------------------------------------------------------- in this macro invocation
Dec 05 15:30:19.018 INFO [stderr] 
Dec 05 15:30:19.031 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.031 INFO [stderr]    --> benches/throughput.rs:112:21
Dec 05 15:30:19.031 INFO [stderr]     |
Dec 05 15:30:19.031 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.031 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.031 INFO [stderr]     |                     |
Dec 05 15:30:19.031 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.031 INFO [stderr] ...
Dec 05 15:30:19.031 INFO [stderr] 157 | bench_select_no_init!(select_no_init_chan_async, chan::async());
Dec 05 15:30:19.031 INFO [stderr]     | ---------------------------------------------------------------- in this macro invocation
Dec 05 15:30:19.031 INFO [stderr] 
Dec 05 15:30:19.070 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.071 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 05 15:30:19.071 INFO [stderr]     |
Dec 05 15:30:19.071 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.071 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.071 INFO [stderr]     |                     |
Dec 05 15:30:19.071 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.071 INFO [stderr] ...
Dec 05 15:30:19.071 INFO [stderr] 225 | bench_select_with_init!(select_with_init_chan_sync_unbuffered, chan::sync(0));
Dec 05 15:30:19.071 INFO [stderr]     | ------------------------------------------------------------------------------ in this macro invocation
Dec 05 15:30:19.071 INFO [stderr] 
Dec 05 15:30:19.071 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.071 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 05 15:30:19.071 INFO [stderr]     |
Dec 05 15:30:19.071 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.071 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.071 INFO [stderr]     |                     |
Dec 05 15:30:19.071 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.071 INFO [stderr] ...
Dec 05 15:30:19.071 INFO [stderr] 226 | bench_select_with_init!(select_with_init_chan_sync_buffered, chan::sync(1));
Dec 05 15:30:19.071 INFO [stderr]     | ---------------------------------------------------------------------------- in this macro invocation
Dec 05 15:30:19.071 INFO [stderr] 
Dec 05 15:30:19.082 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.083 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 05 15:30:19.083 INFO [stderr]     |
Dec 05 15:30:19.083 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.083 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.083 INFO [stderr]     |                     |
Dec 05 15:30:19.083 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.083 INFO [stderr] ...
Dec 05 15:30:19.083 INFO [stderr] 227 | bench_select_with_init!(select_with_init_chan_sync_buffered_all, chan::sync(1000));
Dec 05 15:30:19.083 INFO [stderr]     | ----------------------------------------------------------------------------------- in this macro invocation
Dec 05 15:30:19.083 INFO [stderr] 
Dec 05 15:30:19.086 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:30:19.087 INFO [stderr]    --> benches/throughput.rs:182:21
Dec 05 15:30:19.087 INFO [stderr]     |
Dec 05 15:30:19.087 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Dec 05 15:30:19.087 INFO [stderr]     |                     ----^^^^
Dec 05 15:30:19.087 INFO [stderr]     |                     |
Dec 05 15:30:19.087 INFO [stderr]     |                     help: remove this `mut`
Dec 05 15:30:19.087 INFO [stderr] ...
Dec 05 15:30:19.094 INFO [stderr] 228 | bench_select_with_init!(select_with_init_chan_async, chan::async());
Dec 05 15:30:19.095 INFO [stderr]     | -------------------------------------------------------------------- in this macro invocation
Dec 05 15:30:19.107 INFO [stderr] 
Dec 05 15:30:21.147 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.67s
Dec 05 15:30:21.161 INFO [stderr] su: No module specific data is present
Dec 05 15:30:22.071 INFO running `"docker" "inspect" "aeb9127e34bc98a684e659b69a02e352a4a999af999265d86b9407a0e6572c37"`
Dec 05 15:30:22.431 INFO running `"docker" "rm" "-f" "aeb9127e34bc98a684e659b69a02e352a4a999af999265d86b9407a0e6572c37"`
Dec 05 15:30:22.815 INFO [stdout] aeb9127e34bc98a684e659b69a02e352a4a999af999265d86b9407a0e6572c37