Dec 18 16:13:52.286 INFO checking genetic-0.2.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:13:52.286 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/genetic/0.2.1:/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 16:13:52.700 INFO [stdout] 48996fcc02fd8ea6cda3c5a275d725e876447eeb1931359d08d47dba65b9da9f
Dec 18 16:13:52.706 INFO running `"docker" "start" "-a" "48996fcc02fd8ea6cda3c5a275d725e876447eeb1931359d08d47dba65b9da9f"`
Dec 18 16:13:54.040 INFO [stderr]     Checking genetic v0.2.1 (/opt/crater/workdir)
Dec 18 16:13:54.324 INFO [stderr] warning: unused import: `universe::Universe`
Dec 18 16:13:54.324 INFO [stderr]   --> src/lib.rs:23:5
Dec 18 16:13:54.324 INFO [stderr]    |
Dec 18 16:13:54.324 INFO [stderr] 23 | use universe::Universe;
Dec 18 16:13:54.324 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 16:13:54.324 INFO [stderr]    |
Dec 18 16:13:54.324 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 16:13:54.324 INFO [stderr] 
Dec 18 16:13:54.376 INFO [stderr] warning: unused variable: `mutation_rate`
Dec 18 16:13:54.376 INFO [stderr]   --> src/lib.rs:63:23
Dec 18 16:13:54.376 INFO [stderr]    |
Dec 18 16:13:54.376 INFO [stderr] 63 |     fn mutate(&mut self, mutation_rate: f32) {
Dec 18 16:13:54.376 INFO [stderr]    |                          ^^^^^^^^^^^^^ help: consider using `_mutation_rate` instead
Dec 18 16:13:54.376 INFO [stderr]    |
Dec 18 16:13:54.376 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 16:13:54.376 INFO [stderr] 
Dec 18 16:13:54.376 INFO [stderr] warning: unused variable: `population`
Dec 18 16:13:54.376 INFO [stderr]    --> src/lib.rs:131:28
Dec 18 16:13:54.376 INFO [stderr]     |
Dec 18 16:13:54.376 INFO [stderr] 131 |     fn measure_fitness(&self, population: &mut Vec<LittleAnimal>) {
Dec 18 16:13:54.376 INFO [stderr]     |                               ^^^^^^^^^^ help: consider using `_population` instead
Dec 18 16:13:54.376 INFO [stderr] 
Dec 18 16:13:54.376 INFO [stderr] warning: unused variable: `population`
Dec 18 16:13:54.376 INFO [stderr]    --> src/lib.rs:150:22
Dec 18 16:13:54.376 INFO [stderr]     |
Dec 18 16:13:54.376 INFO [stderr] 150 |     fn reproduce(&self, population: &mut Vec<LittleAnimal>) {
Dec 18 16:13:54.376 INFO [stderr]     |                         ^^^^^^^^^^ help: consider using `_population` instead
Dec 18 16:13:54.376 INFO [stderr] 
Dec 18 16:13:54.384 INFO [stderr] warning: field is never used: `pop_limit`
Dec 18 16:13:54.384 INFO [stderr]   --> src/universe.rs:26:2
Dec 18 16:13:54.384 INFO [stderr]    |
Dec 18 16:13:54.384 INFO [stderr] 26 |     pop_limit: usize,
Dec 18 16:13:54.384 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 16:13:54.384 INFO [stderr]    |
Dec 18 16:13:54.384 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 16:13:54.384 INFO [stderr] 
Dec 18 16:13:54.384 INFO [stderr] warning: method is never used: `from_genome`
Dec 18 16:13:54.384 INFO [stderr]   --> src/lib.rs:38:2
Dec 18 16:13:54.384 INFO [stderr]    |
Dec 18 16:13:54.384 INFO [stderr] 38 |     pub fn from_genome(genome: &Vec<u8>) -> LittleAnimal {
Dec 18 16:13:54.384 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:13:54.384 INFO [stderr] 
Dec 18 16:13:54.384 INFO [stderr] warning: struct is never constructed: `NaturalSelection`
Dec 18 16:13:54.384 INFO [stderr]    --> src/lib.rs:119:1
Dec 18 16:13:54.384 INFO [stderr]     |
Dec 18 16:13:54.384 INFO [stderr] 119 | struct NaturalSelection;
Dec 18 16:13:54.384 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:13:54.384 INFO [stderr] 
Dec 18 16:13:54.384 INFO [stderr] warning: method is never used: `new`
Dec 18 16:13:54.384 INFO [stderr]    --> src/lib.rs:123:2
Dec 18 16:13:54.384 INFO [stderr]     |
Dec 18 16:13:54.384 INFO [stderr] 123 |     pub fn new() -> NaturalSelection {
Dec 18 16:13:54.384 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:13:54.384 INFO [stderr] 
Dec 18 16:13:54.384 INFO [stderr] warning: struct is never constructed: `NaturalReproduction`
Dec 18 16:13:54.384 INFO [stderr]    --> src/lib.rs:138:1
Dec 18 16:13:54.384 INFO [stderr]     |
Dec 18 16:13:54.384 INFO [stderr] 138 | struct NaturalReproduction;
Dec 18 16:13:54.384 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:13:54.384 INFO [stderr] 
Dec 18 16:13:54.384 INFO [stderr] warning: method is never used: `new`
Dec 18 16:13:54.384 INFO [stderr]    --> src/lib.rs:142:2
Dec 18 16:13:54.384 INFO [stderr]     |
Dec 18 16:13:54.384 INFO [stderr] 142 |     pub fn new() -> NaturalReproduction {
Dec 18 16:13:54.384 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:13:54.384 INFO [stderr] 
Dec 18 16:13:54.468 INFO [stderr] warning: unused variable: `mutation_rate`
Dec 18 16:13:54.468 INFO [stderr]   --> src/lib.rs:63:23
Dec 18 16:13:54.468 INFO [stderr]    |
Dec 18 16:13:54.468 INFO [stderr] 63 |     fn mutate(&mut self, mutation_rate: f32) {
Dec 18 16:13:54.468 INFO [stderr]    |                          ^^^^^^^^^^^^^ help: consider using `_mutation_rate` instead
Dec 18 16:13:54.468 INFO [stderr]    |
Dec 18 16:13:54.468 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 16:13:54.468 INFO [stderr] 
Dec 18 16:13:54.468 INFO [stderr] warning: unused variable: `population`
Dec 18 16:13:54.468 INFO [stderr]    --> src/lib.rs:131:28
Dec 18 16:13:54.468 INFO [stderr]     |
Dec 18 16:13:54.468 INFO [stderr] 131 |     fn measure_fitness(&self, population: &mut Vec<LittleAnimal>) {
Dec 18 16:13:54.468 INFO [stderr]     |                               ^^^^^^^^^^ help: consider using `_population` instead
Dec 18 16:13:54.468 INFO [stderr] 
Dec 18 16:13:54.468 INFO [stderr] warning: unused variable: `population`
Dec 18 16:13:54.468 INFO [stderr]    --> src/lib.rs:150:22
Dec 18 16:13:54.468 INFO [stderr]     |
Dec 18 16:13:54.468 INFO [stderr] 150 |     fn reproduce(&self, population: &mut Vec<LittleAnimal>) {
Dec 18 16:13:54.468 INFO [stderr]     |                         ^^^^^^^^^^ help: consider using `_population` instead
Dec 18 16:13:54.468 INFO [stderr] 
Dec 18 16:13:54.481 INFO [stderr] warning: field is never used: `pop_limit`
Dec 18 16:13:54.481 INFO [stderr]   --> src/universe.rs:26:2
Dec 18 16:13:54.481 INFO [stderr]    |
Dec 18 16:13:54.481 INFO [stderr] 26 |     pop_limit: usize,
Dec 18 16:13:54.481 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 16:13:54.484 INFO [stderr]    |
Dec 18 16:13:54.484 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 16:13:54.484 INFO [stderr] 
Dec 18 16:13:54.532 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 18 16:13:54.863 INFO running `"docker" "inspect" "48996fcc02fd8ea6cda3c5a275d725e876447eeb1931359d08d47dba65b9da9f"`
Dec 18 16:13:54.959 INFO running `"docker" "rm" "-f" "48996fcc02fd8ea6cda3c5a275d725e876447eeb1931359d08d47dba65b9da9f"`
Dec 18 16:13:55.100 INFO [stdout] 48996fcc02fd8ea6cda3c5a275d725e876447eeb1931359d08d47dba65b9da9f