Nov 30 21:22:23.376 INFO checking handoff_counter-0.8.5 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 21:22:23.376 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 21:22:23.810 INFO [stdout] 63576ae6c7c1e909daa56a1ba2125e5cf005f8777e451173d05dd21ea9578afe
Nov 30 21:22:23.812 INFO running `"docker" "start" "-a" "63576ae6c7c1e909daa56a1ba2125e5cf005f8777e451173d05dd21ea9578afe"`
Nov 30 21:22:25.776 INFO [stderr] usermod: no changes
Nov 30 21:22:25.852 INFO [stderr]     Checking handoff_counter v0.8.5 (/source)
Nov 30 21:22:26.729 INFO [stderr] warning: variable does not need to be mutable
Nov 30 21:22:26.730 INFO [stderr]   --> src/handoff_counter.rs:55:13
Nov 30 21:22:26.730 INFO [stderr]    |
Nov 30 21:22:26.730 INFO [stderr] 55 |         let mut v = self.vals.get_mut(&self.id).unwrap();
Nov 30 21:22:26.730 INFO [stderr]    |             ----^
Nov 30 21:22:26.730 INFO [stderr]    |             |
Nov 30 21:22:26.730 INFO [stderr]    |             help: remove this `mut`
Nov 30 21:22:26.730 INFO [stderr]    |
Nov 30 21:22:26.730 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 21:22:26.730 INFO [stderr] 
Nov 30 21:22:26.747 INFO [stderr] warning: variable does not need to be mutable
Nov 30 21:22:26.747 INFO [stderr]   --> src/handoff_counter.rs:55:13
Nov 30 21:22:26.747 INFO [stderr]    |
Nov 30 21:22:26.747 INFO [stderr] 55 |         let mut v = self.vals.get_mut(&self.id).unwrap();
Nov 30 21:22:26.747 INFO [stderr]    |             ----^
Nov 30 21:22:26.747 INFO [stderr]    |             |
Nov 30 21:22:26.747 INFO [stderr]    |             help: remove this `mut`
Nov 30 21:22:26.747 INFO [stderr]    |
Nov 30 21:22:26.747 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 21:22:26.747 INFO [stderr] 
Nov 30 21:22:27.561 INFO [stderr] warning: type alias is never used: `Env`
Nov 30 21:22:27.561 INFO [stderr]   --> src/bin/simulate.rs:14:1
Nov 30 21:22:27.561 INFO [stderr]    |
Nov 30 21:22:27.561 INFO [stderr] 14 | type Env<'a> = HashMap<&'a str, Cnt<'a>>;
Nov 30 21:22:27.561 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 21:22:27.561 INFO [stderr]    |
Nov 30 21:22:27.561 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 21:22:27.561 INFO [stderr] 
Nov 30 21:22:27.604 INFO [stderr] warning: type alias is never used: `Env`
Nov 30 21:22:27.605 INFO [stderr]   --> src/bin/simulate.rs:14:1
Nov 30 21:22:27.605 INFO [stderr]    |
Nov 30 21:22:27.605 INFO [stderr] 14 | type Env<'a> = HashMap<&'a str, Cnt<'a>>;
Nov 30 21:22:27.605 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 21:22:27.605 INFO [stderr]    |
Nov 30 21:22:27.605 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 21:22:27.605 INFO [stderr] 
Nov 30 21:22:27.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
Nov 30 21:22:27.638 INFO [stderr] su: No module specific data is present
Nov 30 21:22:28.161 INFO running `"docker" "inspect" "63576ae6c7c1e909daa56a1ba2125e5cf005f8777e451173d05dd21ea9578afe"`
Nov 30 21:22:28.374 INFO running `"docker" "rm" "-f" "63576ae6c7c1e909daa56a1ba2125e5cf005f8777e451173d05dd21ea9578afe"`
Nov 30 21:22:28.576 INFO [stdout] 63576ae6c7c1e909daa56a1ba2125e5cf005f8777e451173d05dd21ea9578afe