Oct 13 16:58:09.091 INFO checking chan-0.1.23 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 16:58:09.091 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 16:58:09.408 INFO blam! e4d8bd30bbf041dfe51792f62ccbee1e75fc8d3f1aa2036a7f4385a4e4de4f61
Oct 13 16:58:09.424 INFO running `"docker" "start" "-a" "e4d8bd30bbf041dfe51792f62ccbee1e75fc8d3f1aa2036a7f4385a4e4de4f61"`
Oct 13 16:58:11.291 INFO kablam! usermod: no changes
Oct 13 16:58:11.489 INFO kablam!     Checking chan v0.1.23 (/source)
Oct 13 16:58:19.964 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:19.964 INFO kablam!    --> benches/throughput.rs:112:21
Oct 13 16:58:19.964 INFO kablam!     |
Oct 13 16:58:19.964 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:19.964 INFO kablam!     |                     ----^^^^
Oct 13 16:58:19.964 INFO kablam!     |                     |
Oct 13 16:58:19.964 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:19.964 INFO kablam! ...
Oct 13 16:58:19.964 INFO kablam! 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Oct 13 16:58:19.964 INFO kablam!     | -------------------------------------------------------------------------- in this macro invocation
Oct 13 16:58:19.964 INFO kablam!     |
Oct 13 16:58:19.964 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 16:58:19.964 INFO kablam! 
Oct 13 16:58:19.964 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:19.965 INFO kablam!    --> benches/throughput.rs:112:21
Oct 13 16:58:19.965 INFO kablam!     |
Oct 13 16:58:19.965 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:19.965 INFO kablam!     |                     ----^^^^
Oct 13 16:58:19.965 INFO kablam!     |                     |
Oct 13 16:58:19.965 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:19.965 INFO kablam! ...
Oct 13 16:58:19.965 INFO kablam! 154 | bench_select_no_init!(select_no_init_chan_sync_unbuffered, chan::sync(0));
Oct 13 16:58:19.965 INFO kablam!     | -------------------------------------------------------------------------- in this macro invocation
Oct 13 16:58:19.965 INFO kablam! 
Oct 13 16:58:19.985 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:19.985 INFO kablam!    --> benches/throughput.rs:112:21
Oct 13 16:58:19.985 INFO kablam!     |
Oct 13 16:58:19.985 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:19.985 INFO kablam!     |                     ----^^^^
Oct 13 16:58:19.985 INFO kablam!     |                     |
Oct 13 16:58:19.985 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:19.985 INFO kablam! ...
Oct 13 16:58:19.985 INFO kablam! 155 | bench_select_no_init!(select_no_init_chan_sync_buffered, chan::sync(1));
Oct 13 16:58:19.985 INFO kablam!     | ------------------------------------------------------------------------ in this macro invocation
Oct 13 16:58:19.985 INFO kablam! 
Oct 13 16:58:19.997 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:19.997 INFO kablam!    --> benches/throughput.rs:112:21
Oct 13 16:58:19.997 INFO kablam!     |
Oct 13 16:58:19.997 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:19.997 INFO kablam!     |                     ----^^^^
Oct 13 16:58:19.997 INFO kablam!     |                     |
Oct 13 16:58:19.997 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:19.997 INFO kablam! ...
Oct 13 16:58:19.997 INFO kablam! 156 | bench_select_no_init!(select_no_init_chan_sync_buffered_all, chan::sync(1000));
Oct 13 16:58:19.997 INFO kablam!     | ------------------------------------------------------------------------------- in this macro invocation
Oct 13 16:58:19.997 INFO kablam! 
Oct 13 16:58:20.016 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:20.016 INFO kablam!    --> benches/throughput.rs:112:21
Oct 13 16:58:20.016 INFO kablam!     |
Oct 13 16:58:20.016 INFO kablam! 112 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:20.016 INFO kablam!     |                     ----^^^^
Oct 13 16:58:20.016 INFO kablam!     |                     |
Oct 13 16:58:20.016 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:20.016 INFO kablam! ...
Oct 13 16:58:20.016 INFO kablam! 157 | bench_select_no_init!(select_no_init_chan_async, chan::async());
Oct 13 16:58:20.016 INFO kablam!     | ---------------------------------------------------------------- in this macro invocation
Oct 13 16:58:20.016 INFO kablam! 
Oct 13 16:58:20.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:20.024 INFO kablam!    --> benches/throughput.rs:182:21
Oct 13 16:58:20.024 INFO kablam!     |
Oct 13 16:58:20.024 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:20.024 INFO kablam!     |                     ----^^^^
Oct 13 16:58:20.024 INFO kablam!     |                     |
Oct 13 16:58:20.024 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:20.024 INFO kablam! ...
Oct 13 16:58:20.024 INFO kablam! 225 | bench_select_with_init!(select_with_init_chan_sync_unbuffered, chan::sync(0));
Oct 13 16:58:20.024 INFO kablam!     | ------------------------------------------------------------------------------ in this macro invocation
Oct 13 16:58:20.024 INFO kablam! 
Oct 13 16:58:20.040 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:20.040 INFO kablam!    --> benches/throughput.rs:182:21
Oct 13 16:58:20.040 INFO kablam!     |
Oct 13 16:58:20.040 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:20.040 INFO kablam!     |                     ----^^^^
Oct 13 16:58:20.040 INFO kablam!     |                     |
Oct 13 16:58:20.040 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:20.040 INFO kablam! ...
Oct 13 16:58:20.040 INFO kablam! 226 | bench_select_with_init!(select_with_init_chan_sync_buffered, chan::sync(1));
Oct 13 16:58:20.040 INFO kablam!     | ---------------------------------------------------------------------------- in this macro invocation
Oct 13 16:58:20.040 INFO kablam! 
Oct 13 16:58:20.048 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:20.048 INFO kablam!    --> benches/throughput.rs:182:21
Oct 13 16:58:20.048 INFO kablam!     |
Oct 13 16:58:20.048 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:20.048 INFO kablam!     |                     ----^^^^
Oct 13 16:58:20.048 INFO kablam!     |                     |
Oct 13 16:58:20.048 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:20.048 INFO kablam! ...
Oct 13 16:58:20.048 INFO kablam! 227 | bench_select_with_init!(select_with_init_chan_sync_buffered_all, chan::sync(1000));
Oct 13 16:58:20.048 INFO kablam!     | ----------------------------------------------------------------------------------- in this macro invocation
Oct 13 16:58:20.048 INFO kablam! 
Oct 13 16:58:20.060 INFO kablam! warning: variable does not need to be mutable
Oct 13 16:58:20.060 INFO kablam!    --> benches/throughput.rs:182:21
Oct 13 16:58:20.060 INFO kablam!     |
Oct 13 16:58:20.060 INFO kablam! 182 |                 let mut done = &mut [false, false, false, false];
Oct 13 16:58:20.060 INFO kablam!     |                     ----^^^^
Oct 13 16:58:20.060 INFO kablam!     |                     |
Oct 13 16:58:20.060 INFO kablam!     |                     help: remove this `mut`
Oct 13 16:58:20.060 INFO kablam! ...
Oct 13 16:58:20.060 INFO kablam! 228 | bench_select_with_init!(select_with_init_chan_async, chan::async());
Oct 13 16:58:20.060 INFO kablam!     | -------------------------------------------------------------------- in this macro invocation
Oct 13 16:58:20.060 INFO kablam! 
Oct 13 16:58:22.516 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.18s
Oct 13 16:58:22.516 INFO kablam! su: No module specific data is present
Oct 13 16:58:23.163 INFO running `"docker" "rm" "-f" "e4d8bd30bbf041dfe51792f62ccbee1e75fc8d3f1aa2036a7f4385a4e4de4f61"`
Oct 13 16:58:23.460 INFO blam! e4d8bd30bbf041dfe51792f62ccbee1e75fc8d3f1aa2036a7f4385a4e4de4f61