Dec 17 16:05:09.409 INFO checking saulshanabrook/graph-computation-play against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 16:05:09.409 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/saulshanabrook/graph-computation-play:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 16:05:10.034 INFO [stdout] 4aa1ccebb48c46eb360121cde4c1bf2c3b7f0dbd43f3cdc7677befcdadbc36d2
Dec 17 16:05:10.038 INFO running `"docker" "start" "-a" "4aa1ccebb48c46eb360121cde4c1bf2c3b7f0dbd43f3cdc7677befcdadbc36d2"`
Dec 17 16:05:11.556 INFO [stderr]     Checking rand v0.3.17
Dec 17 16:05:12.993 INFO [stderr]     Checking graph-computation-play v0.1.0 (/opt/crater/workdir)
Dec 17 16:05:13.280 INFO [stderr] warning: constant item is never used: `POP_SIZE`
Dec 17 16:05:13.280 INFO [stderr]   --> main.rs:51:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 51 | const POP_SIZE: usize = 100;
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.281 INFO [stderr] warning: type alias is never used: `Genomes`
Dec 17 16:05:13.281 INFO [stderr]   --> main.rs:52:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 52 | type Genomes = [Genome; POP_SIZE];
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.281 INFO [stderr] warning: type alias is never used: `Errors`
Dec 17 16:05:13.281 INFO [stderr]   --> main.rs:53:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 53 | type Errors = [Error; POP_SIZE];
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.281 INFO [stderr] warning: function is never used: `errors_from_genomes`
Dec 17 16:05:13.281 INFO [stderr]   --> main.rs:55:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 55 | fn errors_from_genomes(genomes: Genomes) -> Errors {
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.281 INFO [stderr] warning: struct is never constructed: `Population`
Dec 17 16:05:13.281 INFO [stderr]   --> main.rs:62:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 62 | struct Population {
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.281 INFO [stderr] warning: function is never used: `population_from_genomes`
Dec 17 16:05:13.281 INFO [stderr]   --> main.rs:67:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 67 | fn population_from_genomes(genomes: Genomes) -> Population {
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.281 INFO [stderr] warning: function is never used: `initial_population`
Dec 17 16:05:13.281 INFO [stderr]   --> main.rs:74:1
Dec 17 16:05:13.281 INFO [stderr]    |
Dec 17 16:05:13.281 INFO [stderr] 74 | fn initial_population<R: Rng>(random_gene: &Range<Gene>, rng: &mut R) -> Population {
Dec 17 16:05:13.281 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.281 INFO [stderr] 
Dec 17 16:05:13.348 INFO [stderr] warning: constant item is never used: `POP_SIZE`
Dec 17 16:05:13.348 INFO [stderr]   --> main.rs:51:1
Dec 17 16:05:13.348 INFO [stderr]    |
Dec 17 16:05:13.348 INFO [stderr] 51 | const POP_SIZE: usize = 100;
Dec 17 16:05:13.348 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.348 INFO [stderr]    |
Dec 17 16:05:13.348 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 16:05:13.348 INFO [stderr] 
Dec 17 16:05:13.348 INFO [stderr] warning: type alias is never used: `Genomes`
Dec 17 16:05:13.349 INFO [stderr]   --> main.rs:52:1
Dec 17 16:05:13.349 INFO [stderr]    |
Dec 17 16:05:13.349 INFO [stderr] 52 | type Genomes = [Genome; POP_SIZE];
Dec 17 16:05:13.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.349 INFO [stderr] 
Dec 17 16:05:13.349 INFO [stderr] warning: type alias is never used: `Errors`
Dec 17 16:05:13.349 INFO [stderr]   --> main.rs:53:1
Dec 17 16:05:13.349 INFO [stderr]    |
Dec 17 16:05:13.349 INFO [stderr] 53 | type Errors = [Error; POP_SIZE];
Dec 17 16:05:13.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.349 INFO [stderr] 
Dec 17 16:05:13.349 INFO [stderr] warning: function is never used: `errors_from_genomes`
Dec 17 16:05:13.349 INFO [stderr]   --> main.rs:55:1
Dec 17 16:05:13.349 INFO [stderr]    |
Dec 17 16:05:13.349 INFO [stderr] 55 | fn errors_from_genomes(genomes: Genomes) -> Errors {
Dec 17 16:05:13.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.349 INFO [stderr] 
Dec 17 16:05:13.349 INFO [stderr] warning: struct is never constructed: `Population`
Dec 17 16:05:13.349 INFO [stderr]   --> main.rs:62:1
Dec 17 16:05:13.349 INFO [stderr]    |
Dec 17 16:05:13.349 INFO [stderr] 62 | struct Population {
Dec 17 16:05:13.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.349 INFO [stderr] 
Dec 17 16:05:13.349 INFO [stderr] warning: function is never used: `population_from_genomes`
Dec 17 16:05:13.349 INFO [stderr]   --> main.rs:67:1
Dec 17 16:05:13.349 INFO [stderr]    |
Dec 17 16:05:13.349 INFO [stderr] 67 | fn population_from_genomes(genomes: Genomes) -> Population {
Dec 17 16:05:13.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.349 INFO [stderr] 
Dec 17 16:05:13.349 INFO [stderr] warning: function is never used: `initial_population`
Dec 17 16:05:13.349 INFO [stderr]   --> main.rs:74:1
Dec 17 16:05:13.349 INFO [stderr]    |
Dec 17 16:05:13.349 INFO [stderr] 74 | fn initial_population<R: Rng>(random_gene: &Range<Gene>, rng: &mut R) -> Population {
Dec 17 16:05:13.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:05:13.349 INFO [stderr] 
Dec 17 16:05:13.378 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
Dec 17 16:05:14.006 INFO running `"docker" "inspect" "4aa1ccebb48c46eb360121cde4c1bf2c3b7f0dbd43f3cdc7677befcdadbc36d2"`
Dec 17 16:05:14.262 INFO running `"docker" "rm" "-f" "4aa1ccebb48c46eb360121cde4c1bf2c3b7f0dbd43f3cdc7677befcdadbc36d2"`
Dec 17 16:05:14.471 INFO [stdout] 4aa1ccebb48c46eb360121cde4c1bf2c3b7f0dbd43f3cdc7677befcdadbc36d2