Dec 18 08:48:18.494 INFO checking 198d/cs_review against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:48:18.494 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/198d/cs_review:/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 18 08:48:18.664 INFO [stdout] 6f2e8e648a4dc8bbb037dd4e816c511c088ba61af2cac9f38652e17d327f4b45
Dec 18 08:48:18.670 INFO running `"docker" "start" "-a" "6f2e8e648a4dc8bbb037dd4e816c511c088ba61af2cac9f38652e17d327f4b45"`
Dec 18 08:48:19.384 INFO [stderr]    Compiling ndarray v0.7.2
Dec 18 08:48:19.388 INFO [stderr]     Checking num-complex v0.1.35
Dec 18 08:48:24.228 INFO [stderr]     Checking cs_review v0.1.0 (/opt/crater/workdir)
Dec 18 08:48:24.600 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 08:48:24.601 INFO [stderr]  --> src/lib.rs:3:13
Dec 18 08:48:24.601 INFO [stderr]   |
Dec 18 08:48:24.601 INFO [stderr] 3 | #[macro_use(s)]
Dec 18 08:48:24.601 INFO [stderr]   |             ^
Dec 18 08:48:24.601 INFO [stderr]   |
Dec 18 08:48:24.601 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:48:24.601 INFO [stderr] 
Dec 18 08:48:24.640 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 08:48:24.640 INFO [stderr]  --> src/lib.rs:3:13
Dec 18 08:48:24.640 INFO [stderr]   |
Dec 18 08:48:24.640 INFO [stderr] 3 | #[macro_use(s)]
Dec 18 08:48:24.640 INFO [stderr]   |             ^
Dec 18 08:48:24.640 INFO [stderr]   |
Dec 18 08:48:24.640 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:48:24.640 INFO [stderr] 
Dec 18 08:48:24.800 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:48:24.800 INFO [stderr]  --> src/sorting.rs:2:26
Dec 18 08:48:24.800 INFO [stderr]   |
Dec 18 08:48:24.800 INFO [stderr] 2 | pub fn selection_sort<T>(mut data: &mut [T])
Dec 18 08:48:24.800 INFO [stderr]   |                          ----^^^^
Dec 18 08:48:24.800 INFO [stderr]   |                          |
Dec 18 08:48:24.800 INFO [stderr]   |                          help: remove this `mut`
Dec 18 08:48:24.800 INFO [stderr]   |
Dec 18 08:48:24.800 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 08:48:24.800 INFO [stderr] 
Dec 18 08:48:24.800 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:48:24.800 INFO [stderr]   --> src/sorting.rs:25:26
Dec 18 08:48:24.800 INFO [stderr]    |
Dec 18 08:48:24.800 INFO [stderr] 25 | pub fn insertion_sort<T>(mut data: &mut [T])
Dec 18 08:48:24.800 INFO [stderr]    |                          ----^^^^
Dec 18 08:48:24.800 INFO [stderr]    |                          |
Dec 18 08:48:24.800 INFO [stderr]    |                          help: remove this `mut`
Dec 18 08:48:24.800 INFO [stderr] 
Dec 18 08:48:24.804 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:48:24.804 INFO [stderr]    --> src/sorting.rs:110:19
Dec 18 08:48:24.804 INFO [stderr]     |
Dec 18 08:48:24.804 INFO [stderr] 110 |   fn sift_down<T>(mut data: &mut [T], start: usize, end: usize)
Dec 18 08:48:24.804 INFO [stderr]     |                   ----^^^^
Dec 18 08:48:24.804 INFO [stderr]     |                   |
Dec 18 08:48:24.804 INFO [stderr]     |                   help: remove this `mut`
Dec 18 08:48:24.804 INFO [stderr] 
Dec 18 08:48:24.820 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:48:24.820 INFO [stderr]  --> src/sorting.rs:2:26
Dec 18 08:48:24.820 INFO [stderr]   |
Dec 18 08:48:24.820 INFO [stderr] 2 | pub fn selection_sort<T>(mut data: &mut [T])
Dec 18 08:48:24.820 INFO [stderr]   |                          ----^^^^
Dec 18 08:48:24.820 INFO [stderr]   |                          |
Dec 18 08:48:24.820 INFO [stderr]   |                          help: remove this `mut`
Dec 18 08:48:24.820 INFO [stderr]   |
Dec 18 08:48:24.820 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 08:48:24.820 INFO [stderr] 
Dec 18 08:48:24.820 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:48:24.820 INFO [stderr]   --> src/sorting.rs:25:26
Dec 18 08:48:24.820 INFO [stderr]    |
Dec 18 08:48:24.820 INFO [stderr] 25 | pub fn insertion_sort<T>(mut data: &mut [T])
Dec 18 08:48:24.820 INFO [stderr]    |                          ----^^^^
Dec 18 08:48:24.820 INFO [stderr]    |                          |
Dec 18 08:48:24.820 INFO [stderr]    |                          help: remove this `mut`
Dec 18 08:48:24.820 INFO [stderr] 
Dec 18 08:48:24.827 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:48:24.827 INFO [stderr]    --> src/sorting.rs:110:19
Dec 18 08:48:24.827 INFO [stderr]     |
Dec 18 08:48:24.827 INFO [stderr] 110 |   fn sift_down<T>(mut data: &mut [T], start: usize, end: usize)
Dec 18 08:48:24.827 INFO [stderr]     |                   ----^^^^
Dec 18 08:48:24.827 INFO [stderr]     |                   |
Dec 18 08:48:24.827 INFO [stderr]     |                   help: remove this `mut`
Dec 18 08:48:24.827 INFO [stderr] 
Dec 18 08:48:24.853 INFO [stderr] warning: method is never used: `insert`
Dec 18 08:48:24.853 INFO [stderr]    --> src/trees/binary.rs:128:3
Dec 18 08:48:24.853 INFO [stderr]     |
Dec 18 08:48:24.853 INFO [stderr] 128 |   fn insert(&mut self, data: T) {
Dec 18 08:48:24.853 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:48:24.853 INFO [stderr]     |
Dec 18 08:48:24.853 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 08:48:24.853 INFO [stderr] 
Dec 18 08:48:24.853 INFO [stderr] warning: method is never used: `delete`
Dec 18 08:48:24.853 INFO [stderr]    --> src/trees/binary.rs:147:3
Dec 18 08:48:24.853 INFO [stderr]     |
Dec 18 08:48:24.853 INFO [stderr] 147 |   fn delete(&mut self, data: &T) {
Dec 18 08:48:24.853 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:48:24.853 INFO [stderr] 
Dec 18 08:48:24.853 INFO [stderr] warning: method is never used: `find`
Dec 18 08:48:24.853 INFO [stderr]    --> src/trees/binary.rs:187:3
Dec 18 08:48:24.853 INFO [stderr]     |
Dec 18 08:48:24.853 INFO [stderr] 187 |   fn find<'a>(&'a self, data: &T) -> &Edge<T> {
Dec 18 08:48:24.853 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:48:24.853 INFO [stderr] 
Dec 18 08:48:24.853 INFO [stderr] warning: method is never used: `find_mut`
Dec 18 08:48:24.853 INFO [stderr]    --> src/trees/binary.rs:199:3
Dec 18 08:48:24.853 INFO [stderr]     |
Dec 18 08:48:24.853 INFO [stderr] 199 |   fn find_mut<'a>(&'a mut self, data: &T) -> &'a mut Edge<T> {
Dec 18 08:48:24.853 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:48:24.853 INFO [stderr] 
Dec 18 08:48:24.912 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.65s
Dec 18 08:48:25.771 INFO running `"docker" "inspect" "6f2e8e648a4dc8bbb037dd4e816c511c088ba61af2cac9f38652e17d327f4b45"`
Dec 18 08:48:26.094 INFO running `"docker" "rm" "-f" "6f2e8e648a4dc8bbb037dd4e816c511c088ba61af2cac9f38652e17d327f4b45"`
Dec 18 08:48:26.473 INFO [stdout] 6f2e8e648a4dc8bbb037dd4e816c511c088ba61af2cac9f38652e17d327f4b45