Nov 29 03:24:17.326 INFO checking chan-0.1.23 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 29 03:24:17.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 29 03:24:17.833 INFO [stdout] 91fbf97fb3315799f481c6b0e088017954aa62475611c47db44d3a70fb91d52a
Nov 29 03:24:17.836 INFO running `"docker" "start" "-a" "91fbf97fb3315799f481c6b0e088017954aa62475611c47db44d3a70fb91d52a"`
Nov 29 03:24:19.962 INFO [stderr] usermod: no changes
Nov 29 03:24:20.197 INFO [stderr]     Checking chan v0.1.23 (/source)
Nov 29 03:24:27.908 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.908 INFO [stderr]    --> benches/throughput.rs:112:21
Nov 29 03:24:27.908 INFO [stderr]     |
Nov 29 03:24:27.909 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.909 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.909 INFO [stderr]     |                     |
Nov 29 03:24:27.909 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.909 INFO [stderr] ...
Nov 29 03:24:27.910 INFO [stderr] 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Nov 29 03:24:27.910 INFO [stderr]     | -------------------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.910 INFO [stderr]     |
Nov 29 03:24:27.910 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 03:24:27.911 INFO [stderr] 
Nov 29 03:24:27.911 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.911 INFO [stderr]    --> benches/throughput.rs:112:21
Nov 29 03:24:27.911 INFO [stderr]     |
Nov 29 03:24:27.912 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.912 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.912 INFO [stderr]     |                     |
Nov 29 03:24:27.912 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.913 INFO [stderr] ...
Nov 29 03:24:27.913 INFO [stderr] 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Nov 29 03:24:27.913 INFO [stderr]     | -------------------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.913 INFO [stderr] 
Nov 29 03:24:27.914 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.914 INFO [stderr]    --> benches/throughput.rs:112:21
Nov 29 03:24:27.914 INFO [stderr]     |
Nov 29 03:24:27.914 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.915 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.915 INFO [stderr]     |                     |
Nov 29 03:24:27.915 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.915 INFO [stderr] ...
Nov 29 03:24:27.916 INFO [stderr] 155 | bench_select_no_init!(select_no_init_chan_sync_buffered, chan::sync(1));
Nov 29 03:24:27.916 INFO [stderr]     | ------------------------------------------------------------------------ in this macro invocation
Nov 29 03:24:27.916 INFO [stderr] 
Nov 29 03:24:27.923 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.923 INFO [stderr]    --> benches/throughput.rs:112:21
Nov 29 03:24:27.923 INFO [stderr]     |
Nov 29 03:24:27.923 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.923 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.923 INFO [stderr]     |                     |
Nov 29 03:24:27.923 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.923 INFO [stderr] ...
Nov 29 03:24:27.923 INFO [stderr] 156 | bench_select_no_init!(select_no_init_chan_sync_buffered_all, chan::sync(1000));
Nov 29 03:24:27.923 INFO [stderr]     | ------------------------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.923 INFO [stderr] 
Nov 29 03:24:27.932 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.932 INFO [stderr]    --> benches/throughput.rs:112:21
Nov 29 03:24:27.932 INFO [stderr]     |
Nov 29 03:24:27.932 INFO [stderr] 112 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.932 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.932 INFO [stderr]     |                     |
Nov 29 03:24:27.932 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.932 INFO [stderr] ...
Nov 29 03:24:27.932 INFO [stderr] 157 | bench_select_no_init!(select_no_init_chan_async, chan::async());
Nov 29 03:24:27.932 INFO [stderr]     | ---------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.932 INFO [stderr] 
Nov 29 03:24:27.948 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.948 INFO [stderr]    --> benches/throughput.rs:182:21
Nov 29 03:24:27.948 INFO [stderr]     |
Nov 29 03:24:27.948 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.948 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.948 INFO [stderr]     |                     |
Nov 29 03:24:27.948 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.948 INFO [stderr] ...
Nov 29 03:24:27.948 INFO [stderr] 225 | bench_select_with_init!(select_with_init_chan_sync_unbuffered, chan::sync(0));
Nov 29 03:24:27.948 INFO [stderr]     | ------------------------------------------------------------------------------ in this macro invocation
Nov 29 03:24:27.948 INFO [stderr] 
Nov 29 03:24:27.960 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.960 INFO [stderr]    --> benches/throughput.rs:182:21
Nov 29 03:24:27.960 INFO [stderr]     |
Nov 29 03:24:27.960 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.960 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.960 INFO [stderr]     |                     |
Nov 29 03:24:27.960 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.960 INFO [stderr] ...
Nov 29 03:24:27.960 INFO [stderr] 226 | bench_select_with_init!(select_with_init_chan_sync_buffered, chan::sync(1));
Nov 29 03:24:27.960 INFO [stderr]     | ---------------------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.960 INFO [stderr] 
Nov 29 03:24:27.966 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.966 INFO [stderr]    --> benches/throughput.rs:182:21
Nov 29 03:24:27.967 INFO [stderr]     |
Nov 29 03:24:27.967 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.967 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.967 INFO [stderr]     |                     |
Nov 29 03:24:27.967 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.967 INFO [stderr] ...
Nov 29 03:24:27.967 INFO [stderr] 227 | bench_select_with_init!(select_with_init_chan_sync_buffered_all, chan::sync(1000));
Nov 29 03:24:27.967 INFO [stderr]     | ----------------------------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.967 INFO [stderr] 
Nov 29 03:24:27.977 INFO [stderr] warning: variable does not need to be mutable
Nov 29 03:24:27.977 INFO [stderr]    --> benches/throughput.rs:182:21
Nov 29 03:24:27.977 INFO [stderr]     |
Nov 29 03:24:27.977 INFO [stderr] 182 |                 let mut done = &mut [false, false, false, false];
Nov 29 03:24:27.977 INFO [stderr]     |                     ----^^^^
Nov 29 03:24:27.977 INFO [stderr]     |                     |
Nov 29 03:24:27.978 INFO [stderr]     |                     help: remove this `mut`
Nov 29 03:24:27.978 INFO [stderr] ...
Nov 29 03:24:27.978 INFO [stderr] 228 | bench_select_with_init!(select_with_init_chan_async, chan::async());
Nov 29 03:24:27.978 INFO [stderr]     | -------------------------------------------------------------------- in this macro invocation
Nov 29 03:24:27.978 INFO [stderr] 
Nov 29 03:24:30.272 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.28s
Nov 29 03:24:30.280 INFO [stderr] su: No module specific data is present
Nov 29 03:24:31.164 INFO running `"docker" "inspect" "91fbf97fb3315799f481c6b0e088017954aa62475611c47db44d3a70fb91d52a"`
Nov 29 03:24:31.448 INFO running `"docker" "rm" "-f" "91fbf97fb3315799f481c6b0e088017954aa62475611c47db44d3a70fb91d52a"`
Nov 29 03:24:31.768 INFO [stdout] 91fbf97fb3315799f481c6b0e088017954aa62475611c47db44d3a70fb91d52a