[INFO] updating cached repository https://github.com/saulshanabrook/graph-computation-play
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b6a782a5be49bfaa372b226ceb59a68e26b6ea61
[INFO] checking saulshanabrook/graph-computation-play against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaulshanabrook%2Fgraph-computation-play" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saulshanabrook/graph-computation-play on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/saulshanabrook/graph-computation-play
[INFO] finished tweaking git repo https://github.com/saulshanabrook/graph-computation-play
[INFO] tweaked toml for git repo https://github.com/saulshanabrook/graph-computation-play written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/saulshanabrook/graph-computation-play already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c21742fcd5804d82f675ae258b8a1776eefa81b9a0bf42545cf17a0f75d18200
[INFO] running `"docker" "start" "-a" "c21742fcd5804d82f675ae258b8a1776eefa81b9a0bf42545cf17a0f75d18200"`
[INFO] [stderr]     Checking graph-computation-play v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant item is never used: `POP_SIZE`
[INFO] [stderr]   --> main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | const POP_SIZE: usize = 100;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Genomes`
[INFO] [stderr]   --> main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | type Genomes = [Genome; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Errors`
[INFO] [stderr]   --> main.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | type Errors = [Error; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `errors_from_genomes`
[INFO] [stderr]   --> main.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn errors_from_genomes(genomes: Genomes) -> Errors {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Population`
[INFO] [stderr]   --> main.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | struct Population {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `population_from_genomes`
[INFO] [stderr]   --> main.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn population_from_genomes(genomes: Genomes) -> Population {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initial_population`
[INFO] [stderr]   --> main.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn initial_population<R: Rng>(random_gene: &Range<Gene>, rng: &mut R) -> Population {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `POP_SIZE`
[INFO] [stderr]   --> main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | const POP_SIZE: usize = 100;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Genomes`
[INFO] [stderr]   --> main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | type Genomes = [Genome; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Errors`
[INFO] [stderr]   --> main.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | type Errors = [Error; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `errors_from_genomes`
[INFO] [stderr]   --> main.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn errors_from_genomes(genomes: Genomes) -> Errors {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Population`
[INFO] [stderr]   --> main.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | struct Population {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `population_from_genomes`
[INFO] [stderr]   --> main.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn population_from_genomes(genomes: Genomes) -> Population {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initial_population`
[INFO] [stderr]   --> main.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn initial_population<R: Rng>(random_gene: &Range<Gene>, rng: &mut R) -> Population {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "c21742fcd5804d82f675ae258b8a1776eefa81b9a0bf42545cf17a0f75d18200"`
[INFO] running `"docker" "rm" "-f" "c21742fcd5804d82f675ae258b8a1776eefa81b9a0bf42545cf17a0f75d18200"`
[INFO] [stdout] c21742fcd5804d82f675ae258b8a1776eefa81b9a0bf42545cf17a0f75d18200