Dec 17 13:13:34.755 INFO checking trafficland/counter against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252 Dec 17 13:13:34.755 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"` Dec 17 13:13:35.243 INFO [stdout] 98cb7fbb0570769bf0f0468c028c801af047d9b3c2dc1703d113ec5ad47486f9 Dec 17 13:13:35.245 INFO running `"docker" "start" "-a" "98cb7fbb0570769bf0f0468c028c801af047d9b3c2dc1703d113ec5ad47486f9"` Dec 17 13:13:37.704 INFO [stderr] Compiling libc v0.2.22 Dec 17 13:13:37.704 INFO [stderr] Checking vec_map v0.7.0 Dec 17 13:13:37.704 INFO [stderr] Compiling names v0.11.0 Dec 17 13:13:37.704 INFO [stderr] Checking variance v0.1.3 Dec 17 13:13:37.704 INFO [stderr] Checking scopeguard v0.1.2 Dec 17 13:13:37.704 INFO [stderr] Compiling num-integer v0.1.34 Dec 17 13:13:37.716 INFO [stderr] Checking memchr v0.1.11 Dec 17 13:13:38.772 INFO [stderr] Checking time v0.1.37 Dec 17 13:13:38.944 INFO [stderr] Checking thread-id v3.0.0 Dec 17 13:13:39.044 INFO [stderr] Checking atty v0.2.2 Dec 17 13:13:39.352 INFO [stderr] Checking term_size v0.3.0 Dec 17 13:13:39.676 INFO [stderr] Checking rand v0.3.15 Dec 17 13:13:39.882 INFO [stderr] Checking scoped-pool v1.0.0 Dec 17 13:13:40.261 INFO [stderr] Checking aho-corasick v0.5.3 Dec 17 13:13:40.949 INFO [stderr] Checking num-iter v0.1.33 Dec 17 13:13:40.949 INFO [stderr] Checking thread_local v0.3.3 Dec 17 13:13:41.241 INFO [stderr] Checking clap v2.23.3 Dec 17 13:13:41.812 INFO [stderr] Checking thread-id v2.0.0 Dec 17 13:13:42.433 INFO [stderr] Checking num v0.1.37 Dec 17 13:13:42.528 INFO [stderr] Checking thread_local v0.2.7 Dec 17 13:13:43.280 INFO [stderr] Checking regex v0.2.1 Dec 17 13:13:43.336 INFO [stderr] Checking chrono v0.2.25 Dec 17 13:13:44.526 INFO [stderr] Checking regex v0.1.80 Dec 17 13:13:51.762 INFO [stderr] Checking elp v2.0.0 Dec 17 13:13:53.892 INFO [stderr] Checking env_logger v0.3.5 Dec 17 13:13:56.069 INFO [stderr] Compiling counter v1.0.0 (/opt/crater/workdir) Dec 17 13:14:00.052 INFO [stderr] warning: variable does not need to be mutable Dec 17 13:14:00.052 INFO [stderr] --> src/aggregation_control.rs:24:39 Dec 17 13:14:00.052 INFO [stderr] | Dec 17 13:14:00.052 INFO [stderr] 24 | pub fn run_aggregation(&mut self, mut filenames: &mut Vec) -> FileAggregation { Dec 17 13:14:00.052 INFO [stderr] | ----^^^^^^^^^ Dec 17 13:14:00.052 INFO [stderr] | | Dec 17 13:14:00.052 INFO [stderr] | help: remove this `mut` Dec 17 13:14:00.052 INFO [stderr] | Dec 17 13:14:00.052 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 17 13:14:00.052 INFO [stderr] Dec 17 13:14:00.392 INFO [stderr] warning: variable does not need to be mutable Dec 17 13:14:00.392 INFO [stderr] --> src/file_handling.rs:355:23 Dec 17 13:14:00.392 INFO [stderr] | Dec 17 13:14:00.392 INFO [stderr] 355 | .map(|mut g| g.next().unwrap()) Dec 17 13:14:00.392 INFO [stderr] | ----^ Dec 17 13:14:00.392 INFO [stderr] | | Dec 17 13:14:00.392 INFO [stderr] | help: remove this `mut` Dec 17 13:14:00.392 INFO [stderr] | Dec 17 13:14:00.392 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 17 13:14:00.392 INFO [stderr] Dec 17 13:14:00.468 INFO [stderr] warning: variable does not need to be mutable Dec 17 13:14:00.468 INFO [stderr] --> src/aggregation_control.rs:24:39 Dec 17 13:14:00.468 INFO [stderr] | Dec 17 13:14:00.468 INFO [stderr] 24 | pub fn run_aggregation(&mut self, mut filenames: &mut Vec) -> FileAggregation { Dec 17 13:14:00.468 INFO [stderr] | ----^^^^^^^^^ Dec 17 13:14:00.468 INFO [stderr] | | Dec 17 13:14:00.468 INFO [stderr] | help: remove this `mut` Dec 17 13:14:00.468 INFO [stderr] Dec 17 13:14:00.748 INFO [stderr] warning: variable does not need to be mutable Dec 17 13:14:00.748 INFO [stderr] --> src/main.rs:96:52 Dec 17 13:14:00.748 INFO [stderr] | Dec 17 13:14:00.748 INFO [stderr] 96 | fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec) -> counter::FileAggregation { Dec 17 13:14:00.748 INFO [stderr] | ----^^^^^^^^^ Dec 17 13:14:00.748 INFO [stderr] | | Dec 17 13:14:00.748 INFO [stderr] | help: remove this `mut` Dec 17 13:14:00.748 INFO [stderr] | Dec 17 13:14:00.748 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 17 13:14:00.748 INFO [stderr] Dec 17 13:14:00.928 INFO [stderr] warning: variable does not need to be mutable Dec 17 13:14:00.928 INFO [stderr] --> src/main.rs:96:52 Dec 17 13:14:00.928 INFO [stderr] | Dec 17 13:14:00.928 INFO [stderr] 96 | fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec) -> counter::FileAggregation { Dec 17 13:14:00.928 INFO [stderr] | ----^^^^^^^^^ Dec 17 13:14:00.928 INFO [stderr] | | Dec 17 13:14:00.928 INFO [stderr] | help: remove this `mut` Dec 17 13:14:00.928 INFO [stderr] | Dec 17 13:14:00.928 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 17 13:14:00.928 INFO [stderr] Dec 17 13:14:01.001 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 23.46s Dec 17 13:14:02.199 INFO running `"docker" "inspect" "98cb7fbb0570769bf0f0468c028c801af047d9b3c2dc1703d113ec5ad47486f9"` Dec 17 13:14:02.478 INFO running `"docker" "rm" "-f" "98cb7fbb0570769bf0f0468c028c801af047d9b3c2dc1703d113ec5ad47486f9"` Dec 17 13:14:02.760 INFO [stdout] 98cb7fbb0570769bf0f0468c028c801af047d9b3c2dc1703d113ec5ad47486f9