Dec 12 14:37:51.833 INFO checking genetic-0.2.1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 14:37:51.833 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-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 14:37:52.376 INFO [stdout] 3ff6bd7ca3cd5f15eb51b14ef6fd6022a9a612f226c148b8fef44b435286addc
Dec 12 14:37:52.378 INFO running `"docker" "start" "-a" "3ff6bd7ca3cd5f15eb51b14ef6fd6022a9a612f226c148b8fef44b435286addc"`
Dec 12 14:37:54.026 INFO [stderr] usermod: no changes
Dec 12 14:37:54.080 INFO [stderr]     Checking genetic v0.2.1 (/source)
Dec 12 14:37:54.964 INFO [stderr] warning: unused import: `universe::Universe`
Dec 12 14:37:54.964 INFO [stderr]   --> src/lib.rs:23:5
Dec 12 14:37:54.964 INFO [stderr]    |
Dec 12 14:37:54.964 INFO [stderr] 23 | use universe::Universe;
Dec 12 14:37:54.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 12 14:37:54.968 INFO [stderr]    |
Dec 12 14:37:54.968 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 14:37:54.968 INFO [stderr] 
Dec 12 14:37:55.056 INFO [stderr] warning: unused variable: `mutation_rate`
Dec 12 14:37:55.056 INFO [stderr]   --> src/lib.rs:63:23
Dec 12 14:37:55.056 INFO [stderr]    |
Dec 12 14:37:55.056 INFO [stderr] 63 |     fn mutate(&mut self, mutation_rate: f32) {
Dec 12 14:37:55.056 INFO [stderr]    |                          ^^^^^^^^^^^^^ help: consider using `_mutation_rate` instead
Dec 12 14:37:55.072 INFO [stderr]    |
Dec 12 14:37:55.072 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 14:37:55.072 INFO [stderr] 
Dec 12 14:37:55.072 INFO [stderr] warning: unused variable: `population`
Dec 12 14:37:55.072 INFO [stderr]    --> src/lib.rs:131:28
Dec 12 14:37:55.072 INFO [stderr]     |
Dec 12 14:37:55.072 INFO [stderr] 131 |     fn measure_fitness(&self, population: &mut Vec<LittleAnimal>) {
Dec 12 14:37:55.072 INFO [stderr]     |                               ^^^^^^^^^^ help: consider using `_population` instead
Dec 12 14:37:55.072 INFO [stderr] 
Dec 12 14:37:55.072 INFO [stderr] warning: unused variable: `population`
Dec 12 14:37:55.072 INFO [stderr]    --> src/lib.rs:150:22
Dec 12 14:37:55.072 INFO [stderr]     |
Dec 12 14:37:55.072 INFO [stderr] 150 |     fn reproduce(&self, population: &mut Vec<LittleAnimal>) {
Dec 12 14:37:55.072 INFO [stderr]     |                         ^^^^^^^^^^ help: consider using `_population` instead
Dec 12 14:37:55.072 INFO [stderr] 
Dec 12 14:37:55.089 INFO [stderr] warning: field is never used: `pop_limit`
Dec 12 14:37:55.089 INFO [stderr]   --> src/universe.rs:26:2
Dec 12 14:37:55.089 INFO [stderr]    |
Dec 12 14:37:55.089 INFO [stderr] 26 |     pop_limit: usize,
Dec 12 14:37:55.089 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 12 14:37:55.096 INFO [stderr]    |
Dec 12 14:37:55.096 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 14:37:55.096 INFO [stderr] 
Dec 12 14:37:55.096 INFO [stderr] warning: method is never used: `from_genome`
Dec 12 14:37:55.096 INFO [stderr]   --> src/lib.rs:38:2
Dec 12 14:37:55.096 INFO [stderr]    |
Dec 12 14:37:55.096 INFO [stderr] 38 |     pub fn from_genome(genome: &Vec<u8>) -> LittleAnimal {
Dec 12 14:37:55.096 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:37:55.096 INFO [stderr] 
Dec 12 14:37:55.096 INFO [stderr] warning: struct is never constructed: `NaturalSelection`
Dec 12 14:37:55.096 INFO [stderr]    --> src/lib.rs:119:1
Dec 12 14:37:55.096 INFO [stderr]     |
Dec 12 14:37:55.096 INFO [stderr] 119 | struct NaturalSelection;
Dec 12 14:37:55.096 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:37:55.096 INFO [stderr] 
Dec 12 14:37:55.096 INFO [stderr] warning: method is never used: `new`
Dec 12 14:37:55.096 INFO [stderr]    --> src/lib.rs:123:2
Dec 12 14:37:55.096 INFO [stderr]     |
Dec 12 14:37:55.096 INFO [stderr] 123 |     pub fn new() -> NaturalSelection {
Dec 12 14:37:55.096 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:37:55.096 INFO [stderr] 
Dec 12 14:37:55.096 INFO [stderr] warning: struct is never constructed: `NaturalReproduction`
Dec 12 14:37:55.096 INFO [stderr]    --> src/lib.rs:138:1
Dec 12 14:37:55.097 INFO [stderr]     |
Dec 12 14:37:55.097 INFO [stderr] 138 | struct NaturalReproduction;
Dec 12 14:37:55.097 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:37:55.097 INFO [stderr] 
Dec 12 14:37:55.097 INFO [stderr] warning: method is never used: `new`
Dec 12 14:37:55.097 INFO [stderr]    --> src/lib.rs:142:2
Dec 12 14:37:55.097 INFO [stderr]     |
Dec 12 14:37:55.097 INFO [stderr] 142 |     pub fn new() -> NaturalReproduction {
Dec 12 14:37:55.097 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:37:55.097 INFO [stderr] 
Dec 12 14:37:55.312 INFO [stderr] warning: unused variable: `mutation_rate`
Dec 12 14:37:55.312 INFO [stderr]   --> src/lib.rs:63:23
Dec 12 14:37:55.312 INFO [stderr]    |
Dec 12 14:37:55.312 INFO [stderr] 63 |     fn mutate(&mut self, mutation_rate: f32) {
Dec 12 14:37:55.312 INFO [stderr]    |                          ^^^^^^^^^^^^^ help: consider using `_mutation_rate` instead
Dec 12 14:37:55.312 INFO [stderr]    |
Dec 12 14:37:55.312 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 14:37:55.312 INFO [stderr] 
Dec 12 14:37:55.312 INFO [stderr] warning: unused variable: `population`
Dec 12 14:37:55.312 INFO [stderr]    --> src/lib.rs:131:28
Dec 12 14:37:55.312 INFO [stderr]     |
Dec 12 14:37:55.312 INFO [stderr] 131 |     fn measure_fitness(&self, population: &mut Vec<LittleAnimal>) {
Dec 12 14:37:55.312 INFO [stderr]     |                               ^^^^^^^^^^ help: consider using `_population` instead
Dec 12 14:37:55.312 INFO [stderr] 
Dec 12 14:37:55.312 INFO [stderr] warning: unused variable: `population`
Dec 12 14:37:55.312 INFO [stderr]    --> src/lib.rs:150:22
Dec 12 14:37:55.312 INFO [stderr]     |
Dec 12 14:37:55.312 INFO [stderr] 150 |     fn reproduce(&self, population: &mut Vec<LittleAnimal>) {
Dec 12 14:37:55.312 INFO [stderr]     |                         ^^^^^^^^^^ help: consider using `_population` instead
Dec 12 14:37:55.312 INFO [stderr] 
Dec 12 14:37:55.328 INFO [stderr] warning: field is never used: `pop_limit`
Dec 12 14:37:55.328 INFO [stderr]   --> src/universe.rs:26:2
Dec 12 14:37:55.328 INFO [stderr]    |
Dec 12 14:37:55.328 INFO [stderr] 26 |     pop_limit: usize,
Dec 12 14:37:55.328 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 12 14:37:55.328 INFO [stderr]    |
Dec 12 14:37:55.328 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 14:37:55.328 INFO [stderr] 
Dec 12 14:37:55.392 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Dec 12 14:37:55.392 INFO [stderr] su: No module specific data is present
Dec 12 14:37:56.078 INFO running `"docker" "inspect" "3ff6bd7ca3cd5f15eb51b14ef6fd6022a9a612f226c148b8fef44b435286addc"`
Dec 12 14:37:56.480 INFO running `"docker" "rm" "-f" "3ff6bd7ca3cd5f15eb51b14ef6fd6022a9a612f226c148b8fef44b435286addc"`
Dec 12 14:37:56.795 INFO [stdout] 3ff6bd7ca3cd5f15eb51b14ef6fd6022a9a612f226c148b8fef44b435286addc