[INFO] updating cached repository https://github.com/GarfID/GA
[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] a93fb3072b26e1c0e5d8c4b980f67c581766665f
[INFO] checking GarfID/GA against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarfID%2FGA" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GarfID/GA on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/GarfID/GA
[INFO] finished tweaking git repo https://github.com/GarfID/GA
[INFO] tweaked toml for git repo https://github.com/GarfID/GA written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/GarfID/GA already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 5d36ba2a7d35448d9a7a2ce3d86496dd903d90e677eba0785600b0cd42f00ee4
[INFO] running `"docker" "start" "-a" "5d36ba2a7d35448d9a7a2ce3d86496dd903d90e677eba0785600b0cd42f00ee4"`
[INFO] [stderr]     Checking sys v0.0.0
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking genetic_algorithm_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::SystemTime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::index::sample`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rand::seq::index::sample;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::process::exit;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]    --> src/main.rs:276:5
[INFO] [stderr]     |
[INFO] [stderr] 276 |     while /*best_sample.score < 1f32*/ true {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `loop`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::SystemTime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::index::sample`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rand::seq::index::sample;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::process::exit;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]    --> src/main.rs:276:5
[INFO] [stderr]     |
[INFO] [stderr] 276 |     while /*best_sample.score < 1f32*/ true {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `loop`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `generation_number` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |     let mut generation_number = 1;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_generation_number` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `generation_number` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |     let mut generation_number = 1;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_generation_number` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.17s
[INFO] running `"docker" "inspect" "5d36ba2a7d35448d9a7a2ce3d86496dd903d90e677eba0785600b0cd42f00ee4"`
[INFO] running `"docker" "rm" "-f" "5d36ba2a7d35448d9a7a2ce3d86496dd903d90e677eba0785600b0cd42f00ee4"`
[INFO] [stdout] 5d36ba2a7d35448d9a7a2ce3d86496dd903d90e677eba0785600b0cd42f00ee4