[INFO] cloning repository https://github.com/louisbourque/genetic-programming-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/louisbourque/genetic-programming-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisbourque%2Fgenetic-programming-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisbourque%2Fgenetic-programming-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6196233807d519fad1c7af308e78469ba1c2f22e
[INFO] testing louisbourque/genetic-programming-rust against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisbourque%2Fgenetic-programming-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/louisbourque/genetic-programming-rust
[INFO] finished tweaking git repo https://github.com/louisbourque/genetic-programming-rust
[INFO] tweaked toml for git repo https://github.com/louisbourque/genetic-programming-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/louisbourque/genetic-programming-rust on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/louisbourque/genetic-programming-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0182c4c60d3c27186526f1b36001cde0e643189fbb5a59b092e04d0aa5d6ed4
[INFO] running `Command { std: "docker" "start" "-a" "d0182c4c60d3c27186526f1b36001cde0e643189fbb5a59b092e04d0aa5d6ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0182c4c60d3c27186526f1b36001cde0e643189fbb5a59b092e04d0aa5d6ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0182c4c60d3c27186526f1b36001cde0e643189fbb5a59b092e04d0aa5d6ed4", kill_on_drop: false }`
[INFO] [stdout] d0182c4c60d3c27186526f1b36001cde0e643189fbb5a59b092e04d0aa5d6ed4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7dd4b719a64af66bbe28acdb483345c0f36c8fd150b6acaca30490f57a5648c
[INFO] running `Command { std: "docker" "start" "-a" "e7dd4b719a64af66bbe28acdb483345c0f36c8fd150b6acaca30490f57a5648c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling geneticprogramming v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b_fitness`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let b_fitness = vec![
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_b_fitness`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_fitness`
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let c_fitness = vec![
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c_fitness`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mutate_prob`, `selection`, and `max_fitness_evals` are never read
[INFO] [stdout]   --> src/gp.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  7 |     pub mutate_prob: f32,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]  8 |     pub selection: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub max_fitness_evals: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "e7dd4b719a64af66bbe28acdb483345c0f36c8fd150b6acaca30490f57a5648c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7dd4b719a64af66bbe28acdb483345c0f36c8fd150b6acaca30490f57a5648c", kill_on_drop: false }`
[INFO] [stdout] e7dd4b719a64af66bbe28acdb483345c0f36c8fd150b6acaca30490f57a5648c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 020fc141f97429d84fb64be1d3457f0b6f0d6879f0f0ff0ee14ffb447b1c67ea
[INFO] running `Command { std: "docker" "start" "-a" "020fc141f97429d84fb64be1d3457f0b6f0d6879f0f0ff0ee14ffb447b1c67ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling geneticprogramming v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b_fitness`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let b_fitness = vec![
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_b_fitness`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_fitness`
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let c_fitness = vec![
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c_fitness`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mutate_prob`, `selection`, and `max_fitness_evals` are never read
[INFO] [stdout]   --> src/gp.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  7 |     pub mutate_prob: f32,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]  8 |     pub selection: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub max_fitness_evals: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "020fc141f97429d84fb64be1d3457f0b6f0d6879f0f0ff0ee14ffb447b1c67ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "020fc141f97429d84fb64be1d3457f0b6f0d6879f0f0ff0ee14ffb447b1c67ea", kill_on_drop: false }`
[INFO] [stdout] 020fc141f97429d84fb64be1d3457f0b6f0d6879f0f0ff0ee14ffb447b1c67ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3086a84ca9281440ed289900c0fa42d961d111c2620fc9b4f3b47bc8c81c5d2d
[INFO] running `Command { std: "docker" "start" "-a" "3086a84ca9281440ed289900c0fa42d961d111c2620fc9b4f3b47bc8c81c5d2d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `b_fitness`
[INFO] [stderr]   --> src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let b_fitness = vec![
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_b_fitness`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c_fitness`
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let c_fitness = vec![
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c_fitness`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `mutate_prob`, `selection`, and `max_fitness_evals` are never read
[INFO] [stderr]   --> src/gp.rs:7:9
[INFO] [stderr]    |
[INFO] [stderr]  4 | pub struct Config {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] ...
[INFO] [stderr]  7 |     pub mutate_prob: f32,
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]  8 |     pub selection: String,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 13 |     pub max_fitness_evals: u16,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `geneticprogramming` (bin "geneticprogramming" test) generated 3 warnings (run `cargo fix --bin "geneticprogramming" -p geneticprogramming --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/geneticprogramming-96cc3152ec37b0cc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3086a84ca9281440ed289900c0fa42d961d111c2620fc9b4f3b47bc8c81c5d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3086a84ca9281440ed289900c0fa42d961d111c2620fc9b4f3b47bc8c81c5d2d", kill_on_drop: false }`
[INFO] [stdout] 3086a84ca9281440ed289900c0fa42d961d111c2620fc9b4f3b47bc8c81c5d2d
