Dec 05 03:49:20.350 INFO testing trafficland/counter against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 03:49:20.350 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 03:49:23.008 INFO [stdout] 3eca36dd4441055779ce0c4b8aea5c30f2ba5390f031198e6b9628b1cc2715cb
Dec 05 03:49:23.014 INFO running `"docker" "start" "-a" "3eca36dd4441055779ce0c4b8aea5c30f2ba5390f031198e6b9628b1cc2715cb"`
Dec 05 03:49:24.924 INFO [stderr] usermod: no changes
Dec 05 03:49:25.113 INFO [stderr]    Compiling crossbeam v0.2.10
Dec 05 03:49:25.120 INFO [stderr]    Compiling variance v0.1.3
Dec 05 03:49:25.120 INFO [stderr]    Compiling scopeguard v0.1.2
Dec 05 03:49:25.124 INFO [stderr]    Compiling num-integer v0.1.34
Dec 05 03:49:25.124 INFO [stderr]    Compiling memchr v0.1.11
Dec 05 03:49:25.124 INFO [stderr]    Compiling thread-id v3.0.0
Dec 05 03:49:25.124 INFO [stderr]    Compiling term_size v0.3.0
Dec 05 03:49:25.125 INFO [stderr]    Compiling atty v0.2.2
Dec 05 03:49:25.670 INFO [stderr]    Compiling thread_local v0.3.3
Dec 05 03:49:26.370 INFO [stderr]    Compiling thread-id v2.0.0
Dec 05 03:49:26.696 INFO [stderr]    Compiling clap v2.23.3
Dec 05 03:49:26.740 INFO [stderr]    Compiling aho-corasick v0.5.3
Dec 05 03:49:27.272 INFO [stderr]    Compiling thread_local v0.2.7
Dec 05 03:49:27.352 INFO [stderr]    Compiling num-iter v0.1.33
Dec 05 03:49:27.447 INFO [stderr]    Compiling regex v0.2.1
Dec 05 03:49:28.306 INFO [stderr]    Compiling num v0.1.37
Dec 05 03:49:29.026 INFO [stderr]    Compiling regex v0.1.80
Dec 05 03:49:29.072 INFO [stderr]    Compiling chrono v0.2.25
Dec 05 03:49:29.936 INFO [stderr]    Compiling scoped-pool v1.0.0
Dec 05 03:49:35.836 INFO [stderr]    Compiling counter v1.0.0 (/source)
Dec 05 03:49:35.836 INFO [stderr]    Compiling elp v2.0.0
Dec 05 03:49:57.218 INFO [stderr]    Compiling env_logger v0.3.5
Dec 05 03:50:18.952 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:50:18.952 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 05 03:50:18.952 INFO [stderr]    |
Dec 05 03:50:18.952 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 05 03:50:18.952 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 05 03:50:18.952 INFO [stderr]    |                                       |
Dec 05 03:50:18.952 INFO [stderr]    |                                       help: remove this `mut`
Dec 05 03:50:18.952 INFO [stderr]    |
Dec 05 03:50:18.952 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:50:18.952 INFO [stderr] 
Dec 05 03:50:21.360 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:50:21.360 INFO [stderr]   --> src/main.rs:96:52
Dec 05 03:50:21.360 INFO [stderr]    |
Dec 05 03:50:21.360 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 05 03:50:21.360 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 05 03:50:21.360 INFO [stderr]    |                                                    |
Dec 05 03:50:21.360 INFO [stderr]    |                                                    help: remove this `mut`
Dec 05 03:50:21.360 INFO [stderr]    |
Dec 05 03:50:21.360 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:50:21.360 INFO [stderr] 
Dec 05 03:50:24.897 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.95s
Dec 05 03:50:24.905 INFO [stderr] su: No module specific data is present
Dec 05 03:50:25.706 INFO running `"docker" "inspect" "3eca36dd4441055779ce0c4b8aea5c30f2ba5390f031198e6b9628b1cc2715cb"`
Dec 05 03:50:25.876 INFO running `"docker" "rm" "-f" "3eca36dd4441055779ce0c4b8aea5c30f2ba5390f031198e6b9628b1cc2715cb"`
Dec 05 03:50:26.147 INFO [stdout] 3eca36dd4441055779ce0c4b8aea5c30f2ba5390f031198e6b9628b1cc2715cb
Dec 05 03:50:26.150 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 03:50:26.543 INFO [stdout] f7f608c6de4a783f928ebf3032e9ebe417a7e649d25b95f99a1b7c47fbb736ad
Dec 05 03:50:26.545 INFO running `"docker" "start" "-a" "f7f608c6de4a783f928ebf3032e9ebe417a7e649d25b95f99a1b7c47fbb736ad"`
Dec 05 03:50:27.360 INFO [stderr] usermod: no changes
Dec 05 03:50:27.470 INFO [stderr]    Compiling names v0.11.0
Dec 05 03:50:29.220 INFO [stderr]    Compiling counter v1.0.0 (/source)
Dec 05 03:50:30.524 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:50:30.524 INFO [stderr]   --> src/main.rs:96:52
Dec 05 03:50:30.524 INFO [stderr]    |
Dec 05 03:50:30.524 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 05 03:50:30.524 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 05 03:50:30.524 INFO [stderr]    |                                                    |
Dec 05 03:50:30.524 INFO [stderr]    |                                                    help: remove this `mut`
Dec 05 03:50:30.524 INFO [stderr]    |
Dec 05 03:50:30.524 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:50:30.524 INFO [stderr] 
Dec 05 03:50:30.572 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:50:30.572 INFO [stderr]    --> src/file_handling.rs:355:23
Dec 05 03:50:30.572 INFO [stderr]     |
Dec 05 03:50:30.572 INFO [stderr] 355 |                 .map(|mut g| g.next().unwrap())
Dec 05 03:50:30.572 INFO [stderr]     |                       ----^
Dec 05 03:50:30.572 INFO [stderr]     |                       |
Dec 05 03:50:30.573 INFO [stderr]     |                       help: remove this `mut`
Dec 05 03:50:30.573 INFO [stderr]     |
Dec 05 03:50:30.573 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 03:50:30.573 INFO [stderr] 
Dec 05 03:50:30.600 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:50:30.600 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 05 03:50:30.600 INFO [stderr]    |
Dec 05 03:50:30.600 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 05 03:50:30.600 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 05 03:50:30.600 INFO [stderr]    |                                       |
Dec 05 03:50:30.600 INFO [stderr]    |                                       help: remove this `mut`
Dec 05 03:50:30.600 INFO [stderr] 
Dec 05 03:50:34.706 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.32s
Dec 05 03:50:34.713 INFO [stderr] su: No module specific data is present
Dec 05 03:50:35.202 INFO running `"docker" "inspect" "f7f608c6de4a783f928ebf3032e9ebe417a7e649d25b95f99a1b7c47fbb736ad"`
Dec 05 03:50:35.372 INFO running `"docker" "rm" "-f" "f7f608c6de4a783f928ebf3032e9ebe417a7e649d25b95f99a1b7c47fbb736ad"`
Dec 05 03:50:35.508 INFO [stdout] f7f608c6de4a783f928ebf3032e9ebe417a7e649d25b95f99a1b7c47fbb736ad