Dec 04 08:13:59.102 INFO checking trafficland/counter against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 08:13:59.102 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 08:14:00.402 INFO [stdout] 1f279c5c2eb1afa0c5367a72c27aa04d96c56771c129be5b26c812639b3357de
Dec 04 08:14:00.405 INFO running `"docker" "start" "-a" "1f279c5c2eb1afa0c5367a72c27aa04d96c56771c129be5b26c812639b3357de"`
Dec 04 08:14:02.895 INFO [stderr] usermod: no changes
Dec 04 08:14:03.127 INFO [stderr]     Checking same-file v0.1.3
Dec 04 08:14:03.127 INFO [stderr]    Compiling names v0.11.0
Dec 04 08:14:03.127 INFO [stderr]     Checking bitflags v0.8.2
Dec 04 08:14:03.127 INFO [stderr]     Checking scopeguard v0.1.2
Dec 04 08:14:03.128 INFO [stderr]     Checking vec_map v0.7.0
Dec 04 08:14:03.136 INFO [stderr]     Checking log v0.3.7
Dec 04 08:14:03.147 INFO [stderr]     Checking variance v0.1.3
Dec 04 08:14:03.160 INFO [stderr]    Compiling num-integer v0.1.34
Dec 04 08:14:03.847 INFO [stderr]    Compiling time v0.1.37
Dec 04 08:14:04.475 INFO [stderr]     Checking memchr v0.1.11
Dec 04 08:14:04.809 INFO [stderr]     Checking thread-id v3.0.0
Dec 04 08:14:06.196 INFO [stderr]     Checking memchr v1.0.1
Dec 04 08:14:06.229 INFO [stderr]     Checking scoped-pool v1.0.0
Dec 04 08:14:06.230 INFO [stderr]     Checking walkdir v1.0.7
Dec 04 08:14:06.236 INFO [stderr]    Compiling num-iter v0.1.33
Dec 04 08:14:06.238 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 04 08:14:07.841 INFO [stderr]     Checking clap v2.23.3
Dec 04 08:14:07.868 INFO [stderr]     Checking thread_local v0.3.3
Dec 04 08:14:07.887 INFO [stderr]     Checking num v0.1.37
Dec 04 08:14:08.225 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 04 08:14:08.882 INFO [stderr]     Checking thread-id v2.0.0
Dec 04 08:14:10.060 INFO [stderr]     Checking thread_local v0.2.7
Dec 04 08:14:10.409 INFO [stderr]     Checking chrono v0.2.25
Dec 04 08:14:12.404 INFO [stderr]     Checking regex v0.2.1
Dec 04 08:14:12.436 INFO [stderr]     Checking regex v0.1.80
Dec 04 08:14:17.886 INFO [stderr]     Checking elp v2.0.0
Dec 04 08:14:19.619 INFO [stderr]     Checking env_logger v0.3.5
Dec 04 08:14:21.139 INFO [stderr]    Compiling counter v1.0.0 (/source)
Dec 04 08:14:26.051 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:14:26.051 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 04 08:14:26.051 INFO [stderr]    |
Dec 04 08:14:26.051 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 04 08:14:26.051 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 04 08:14:26.051 INFO [stderr]    |                                       |
Dec 04 08:14:26.051 INFO [stderr]    |                                       help: remove this `mut`
Dec 04 08:14:26.051 INFO [stderr]    |
Dec 04 08:14:26.051 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 08:14:26.051 INFO [stderr] 
Dec 04 08:14:26.796 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:14:26.796 INFO [stderr]    --> src/file_handling.rs:355:23
Dec 04 08:14:26.796 INFO [stderr]     |
Dec 04 08:14:26.796 INFO [stderr] 355 |                 .map(|mut g| g.next().unwrap())
Dec 04 08:14:26.796 INFO [stderr]     |                       ----^
Dec 04 08:14:26.796 INFO [stderr]     |                       |
Dec 04 08:14:26.796 INFO [stderr]     |                       help: remove this `mut`
Dec 04 08:14:26.796 INFO [stderr]     |
Dec 04 08:14:26.796 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 08:14:26.796 INFO [stderr] 
Dec 04 08:14:26.915 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:14:26.915 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 04 08:14:26.915 INFO [stderr]    |
Dec 04 08:14:26.915 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 04 08:14:26.915 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 04 08:14:26.916 INFO [stderr]    |                                       |
Dec 04 08:14:26.916 INFO [stderr]    |                                       help: remove this `mut`
Dec 04 08:14:26.927 INFO [stderr] 
Dec 04 08:14:27.671 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:14:27.671 INFO [stderr]   --> src/main.rs:96:52
Dec 04 08:14:27.671 INFO [stderr]    |
Dec 04 08:14:27.671 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 04 08:14:27.671 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 04 08:14:27.672 INFO [stderr]    |                                                    |
Dec 04 08:14:27.672 INFO [stderr]    |                                                    help: remove this `mut`
Dec 04 08:14:27.672 INFO [stderr]    |
Dec 04 08:14:27.672 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 08:14:27.672 INFO [stderr] 
Dec 04 08:14:27.679 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:14:27.679 INFO [stderr]   --> src/main.rs:96:52
Dec 04 08:14:27.679 INFO [stderr]    |
Dec 04 08:14:27.679 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 04 08:14:27.679 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 04 08:14:27.679 INFO [stderr]    |                                                    |
Dec 04 08:14:27.679 INFO [stderr]    |                                                    help: remove this `mut`
Dec 04 08:14:27.679 INFO [stderr]    |
Dec 04 08:14:27.679 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 08:14:27.679 INFO [stderr] 
Dec 04 08:14:27.748 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.83s
Dec 04 08:14:27.755 INFO [stderr] su: No module specific data is present
Dec 04 08:14:29.253 INFO running `"docker" "inspect" "1f279c5c2eb1afa0c5367a72c27aa04d96c56771c129be5b26c812639b3357de"`
Dec 04 08:14:29.583 INFO running `"docker" "rm" "-f" "1f279c5c2eb1afa0c5367a72c27aa04d96c56771c129be5b26c812639b3357de"`
Dec 04 08:14:30.006 INFO [stdout] 1f279c5c2eb1afa0c5367a72c27aa04d96c56771c129be5b26c812639b3357de