Dec 12 23:29:24.953 INFO testing trafficland/counter against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 23:29:24.953 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12 23:29:26.459 INFO [stdout] 82092c9f45c13eec539745895ef317c929f546221d723055e30d1d464f1a0240
Dec 12 23:29:26.461 INFO running `"docker" "start" "-a" "82092c9f45c13eec539745895ef317c929f546221d723055e30d1d464f1a0240"`
Dec 12 23:29:28.034 INFO [stderr] usermod: no changes
Dec 12 23:29:28.239 INFO [stderr]    Compiling log v0.3.7
Dec 12 23:29:28.239 INFO [stderr]    Compiling variance v0.1.3
Dec 12 23:29:28.247 INFO [stderr]    Compiling regex-syntax v0.4.0
Dec 12 23:29:28.247 INFO [stderr]    Compiling same-file v0.1.3
Dec 12 23:29:28.247 INFO [stderr]    Compiling scopeguard v0.1.2
Dec 12 23:29:28.271 INFO [stderr]    Compiling num-integer v0.1.34
Dec 12 23:29:28.279 INFO [stderr]    Compiling memchr v0.1.11
Dec 12 23:29:28.279 INFO [stderr]    Compiling time v0.1.37
Dec 12 23:29:29.705 INFO [stderr]    Compiling thread-id v3.0.0
Dec 12 23:29:30.149 INFO [stderr]    Compiling memchr v1.0.1
Dec 12 23:29:31.139 INFO [stderr]    Compiling atty v0.2.2
Dec 12 23:29:31.175 INFO [stderr]    Compiling term_size v0.3.0
Dec 12 23:29:31.175 INFO [stderr]    Compiling num_cpus v1.4.0
Dec 12 23:29:31.228 INFO [stderr]    Compiling scoped-pool v1.0.0
Dec 12 23:29:31.540 INFO [stderr]    Compiling aho-corasick v0.5.3
Dec 12 23:29:32.792 INFO [stderr]    Compiling walkdir v1.0.7
Dec 12 23:29:32.794 INFO [stderr]    Compiling thread_local v0.3.3
Dec 12 23:29:32.912 INFO [stderr]    Compiling num-iter v0.1.33
Dec 12 23:29:38.177 INFO [stderr]    Compiling clap v2.23.3
Dec 12 23:29:38.177 INFO [stderr]    Compiling aho-corasick v0.6.3
Dec 12 23:29:38.194 INFO [stderr]    Compiling thread-id v2.0.0
Dec 12 23:29:38.207 INFO [stderr]    Compiling num v0.1.37
Dec 12 23:29:38.929 INFO [stderr]    Compiling chrono v0.2.25
Dec 12 23:29:39.004 INFO [stderr]    Compiling thread_local v0.2.7
Dec 12 23:29:40.531 INFO [stderr]    Compiling regex v0.1.80
Dec 12 23:29:48.483 INFO [stderr]    Compiling regex v0.2.1
Dec 12 23:29:50.021 INFO [stderr]    Compiling counter v1.0.0 (/source)
Dec 12 23:29:50.023 INFO [stderr]    Compiling elp v2.0.0
Dec 12 23:30:06.729 INFO [stderr]    Compiling env_logger v0.3.5
Dec 12 23:30:25.787 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:30:25.787 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 12 23:30:25.787 INFO [stderr]    |
Dec 12 23:30:25.787 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 12 23:30:25.787 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 12 23:30:25.787 INFO [stderr]    |                                       |
Dec 12 23:30:25.787 INFO [stderr]    |                                       help: remove this `mut`
Dec 12 23:30:25.787 INFO [stderr]    |
Dec 12 23:30:25.787 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 23:30:25.787 INFO [stderr] 
Dec 12 23:30:27.495 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:30:27.495 INFO [stderr]   --> src/main.rs:96:52
Dec 12 23:30:27.495 INFO [stderr]    |
Dec 12 23:30:27.495 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 12 23:30:27.495 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 12 23:30:27.495 INFO [stderr]    |                                                    |
Dec 12 23:30:27.495 INFO [stderr]    |                                                    help: remove this `mut`
Dec 12 23:30:27.495 INFO [stderr]    |
Dec 12 23:30:27.495 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 23:30:27.495 INFO [stderr] 
Dec 12 23:30:30.469 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
Dec 12 23:30:30.481 INFO [stderr] su: No module specific data is present
Dec 12 23:30:31.152 INFO running `"docker" "inspect" "82092c9f45c13eec539745895ef317c929f546221d723055e30d1d464f1a0240"`
Dec 12 23:30:31.385 INFO running `"docker" "rm" "-f" "82092c9f45c13eec539745895ef317c929f546221d723055e30d1d464f1a0240"`
Dec 12 23:30:31.651 INFO [stdout] 82092c9f45c13eec539745895ef317c929f546221d723055e30d1d464f1a0240
Dec 12 23:30:31.655 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12 23:30:31.911 INFO [stdout] ce80551a80b081d215385aad704e5ef623b2755ada5958410e1d3653eb0482c6
Dec 12 23:30:31.911 INFO running `"docker" "start" "-a" "ce80551a80b081d215385aad704e5ef623b2755ada5958410e1d3653eb0482c6"`
Dec 12 23:30:32.808 INFO [stderr] usermod: no changes
Dec 12 23:30:32.945 INFO [stderr]    Compiling names v0.11.0
Dec 12 23:30:34.483 INFO [stderr]    Compiling counter v1.0.0 (/source)
Dec 12 23:30:35.115 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:30:35.115 INFO [stderr]   --> src/main.rs:96:52
Dec 12 23:30:35.115 INFO [stderr]    |
Dec 12 23:30:35.115 INFO [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
Dec 12 23:30:35.115 INFO [stderr]    |                                                    ----^^^^^^^^^
Dec 12 23:30:35.115 INFO [stderr]    |                                                    |
Dec 12 23:30:35.115 INFO [stderr]    |                                                    help: remove this `mut`
Dec 12 23:30:35.115 INFO [stderr]    |
Dec 12 23:30:35.115 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 23:30:35.115 INFO [stderr] 
Dec 12 23:30:35.318 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:30:35.319 INFO [stderr]    --> src/file_handling.rs:355:23
Dec 12 23:30:35.319 INFO [stderr]     |
Dec 12 23:30:35.319 INFO [stderr] 355 |                 .map(|mut g| g.next().unwrap())
Dec 12 23:30:35.319 INFO [stderr]     |                       ----^
Dec 12 23:30:35.319 INFO [stderr]     |                       |
Dec 12 23:30:35.319 INFO [stderr]     |                       help: remove this `mut`
Dec 12 23:30:35.319 INFO [stderr]     |
Dec 12 23:30:35.319 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 23:30:35.319 INFO [stderr] 
Dec 12 23:30:35.363 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:30:35.363 INFO [stderr]   --> src/aggregation_control.rs:24:39
Dec 12 23:30:35.363 INFO [stderr]    |
Dec 12 23:30:35.363 INFO [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
Dec 12 23:30:35.363 INFO [stderr]    |                                       ----^^^^^^^^^
Dec 12 23:30:35.363 INFO [stderr]    |                                       |
Dec 12 23:30:35.363 INFO [stderr]    |                                       help: remove this `mut`
Dec 12 23:30:35.363 INFO [stderr] 
Dec 12 23:30:38.559 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
Dec 12 23:30:38.567 INFO [stderr] su: No module specific data is present
Dec 12 23:30:39.001 INFO running `"docker" "inspect" "ce80551a80b081d215385aad704e5ef623b2755ada5958410e1d3653eb0482c6"`
Dec 12 23:30:39.076 INFO running `"docker" "rm" "-f" "ce80551a80b081d215385aad704e5ef623b2755ada5958410e1d3653eb0482c6"`
Dec 12 23:30:39.187 INFO [stdout] ce80551a80b081d215385aad704e5ef623b2755ada5958410e1d3653eb0482c6