Dec 19 06:45:00.141 INFO checking trafficland/counter against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:45:00.141 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/trafficland/counter:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:45:01.478 INFO [stdout] b22db184a323747550b18f0a140aae2b921353591e7677ff96ba5fa08ddf971a
Dec 19 06:45:01.482 INFO running `"docker" "start" "-a" "b22db184a323747550b18f0a140aae2b921353591e7677ff96ba5fa08ddf971a"`
Dec 19 06:45:03.176 INFO [stderr]    Compiling libc v0.2.22
Dec 19 06:45:03.176 INFO [stderr]     Checking regex-syntax v0.3.9
Dec 19 06:45:03.176 INFO [stderr]    Compiling names v0.11.0
Dec 19 06:45:03.176 INFO [stderr]     Checking variance v0.1.3
Dec 19 06:45:03.176 INFO [stderr]     Checking crossbeam v0.2.10
Dec 19 06:45:03.176 INFO [stderr]     Checking scopeguard v0.1.2
Dec 19 06:45:03.176 INFO [stderr]    Compiling num-integer v0.1.34
Dec 19 06:45:03.176 INFO [stderr]     Checking memchr v0.1.11
Dec 19 06:45:03.388 INFO [stderr]     Checking memchr v1.0.1
Dec 19 06:45:03.988 INFO [stderr]     Checking thread-id v3.0.0
Dec 19 06:45:04.172 INFO [stderr]     Checking time v0.1.37
Dec 19 06:45:04.334 INFO [stderr]     Checking atty v0.2.2
Dec 19 06:45:04.428 INFO [stderr]     Checking term_size v0.3.0
Dec 19 06:45:04.649 INFO [stderr]     Checking num_cpus v1.4.0
Dec 19 06:45:05.446 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 19 06:45:05.450 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 19 06:45:06.121 INFO [stderr]    Compiling num-iter v0.1.33
Dec 19 06:45:06.638 INFO [stderr]     Checking clap v2.23.3
Dec 19 06:45:06.824 INFO [stderr]     Checking thread_local v0.3.3
Dec 19 06:45:07.481 INFO [stderr]     Checking num v0.1.37
Dec 19 06:45:07.970 INFO [stderr]     Checking thread-id v2.0.0
Dec 19 06:45:08.512 INFO [stderr]     Checking scoped-pool v1.0.0
Dec 19 06:45:08.550 INFO [stderr]     Checking thread_local v0.2.7
Dec 19 06:45:08.848 INFO [stderr]     Checking regex v0.2.1
Dec 19 06:45:09.512 INFO [stderr]     Checking chrono v0.2.25
Dec 19 06:45:10.672 INFO [stderr]     Checking regex v0.1.80
Dec 19 06:45:16.579 INFO [stderr]     Checking elp v2.0.0
Dec 19 06:45:19.044 INFO [stderr]     Checking env_logger v0.3.5
Dec 19 06:45:19.824 INFO [stderr]    Compiling counter v1.0.0 (/opt/crater/workdir)
Dec 19 06:45:24.092 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:45:24.092 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 19 06:45:24.092 INFO [stderr]    |
Dec 19 06:45:24.092 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 19 06:45:24.092 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 19 06:45:24.092 INFO [stderr]    |                                       |
Dec 19 06:45:24.092 INFO [stderr]    |                                       help: remove this `mut`
Dec 19 06:45:24.092 INFO [stderr]    |
Dec 19 06:45:24.092 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:45:24.092 INFO [stderr] 
Dec 19 06:45:24.588 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:45:24.588 INFO [stderr]    --> src/file_handling.rs:355:23
Dec 19 06:45:24.588 INFO [stderr]     |
Dec 19 06:45:24.588 INFO [stderr] 355 |                 .map(|mut g| g.next().unwrap())
Dec 19 06:45:24.588 INFO [stderr]     |                       ----^
Dec 19 06:45:24.588 INFO [stderr]     |                       |
Dec 19 06:45:24.588 INFO [stderr]     |                       help: remove this `mut`
Dec 19 06:45:24.588 INFO [stderr]     |
Dec 19 06:45:24.588 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:45:24.588 INFO [stderr] 
Dec 19 06:45:24.613 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:45:24.613 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 19 06:45:24.613 INFO [stderr]    |
Dec 19 06:45:24.613 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 19 06:45:24.613 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 19 06:45:24.613 INFO [stderr]    |                                       |
Dec 19 06:45:24.613 INFO [stderr]    |                                       help: remove this `mut`
Dec 19 06:45:24.613 INFO [stderr] 
Dec 19 06:45:24.849 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:45:24.849 INFO [stderr]   --> src/main.rs:96:52
Dec 19 06:45:24.849 INFO [stderr]    |
Dec 19 06:45:24.849 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 19 06:45:24.849 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 19 06:45:24.849 INFO [stderr]    |                                                    |
Dec 19 06:45:24.849 INFO [stderr]    |                                                    help: remove this `mut`
Dec 19 06:45:24.849 INFO [stderr]    |
Dec 19 06:45:24.849 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:45:24.860 INFO [stderr] 
Dec 19 06:45:25.071 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:45:25.071 INFO [stderr]   --> src/main.rs:96:52
Dec 19 06:45:25.071 INFO [stderr]    |
Dec 19 06:45:25.071 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 19 06:45:25.072 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 19 06:45:25.072 INFO [stderr]    |                                                    |
Dec 19 06:45:25.072 INFO [stderr]    |                                                    help: remove this `mut`
Dec 19 06:45:25.072 INFO [stderr]    |
Dec 19 06:45:25.072 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:45:25.072 INFO [stderr] 
Dec 19 06:45:25.137 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.16s
Dec 19 06:45:26.460 INFO running `"docker" "inspect" "b22db184a323747550b18f0a140aae2b921353591e7677ff96ba5fa08ddf971a"`
Dec 19 06:45:26.718 INFO running `"docker" "rm" "-f" "b22db184a323747550b18f0a140aae2b921353591e7677ff96ba5fa08ddf971a"`
Dec 19 06:45:27.023 INFO [stdout] b22db184a323747550b18f0a140aae2b921353591e7677ff96ba5fa08ddf971a