[INFO] cloning repository https://github.com/Danzibob/DEARS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Danzibob/DEARS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanzibob%2FDEARS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanzibob%2FDEARS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51c2569ec49750153f8da495adedd38618d788b9
[INFO] checking Danzibob/DEARS against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanzibob%2FDEARS" "/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/Danzibob/DEARS
[INFO] finished tweaking git repo https://github.com/Danzibob/DEARS
[INFO] tweaked toml for git repo https://github.com/Danzibob/DEARS written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Danzibob/DEARS on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Danzibob/DEARS 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54f5fbabc072c8585da9a7104aa7b3a1b0a873c5a7a380f36ef4b4137f789139
[INFO] running `Command { std: "docker" "start" "-a" "54f5fbabc072c8585da9a7104aa7b3a1b0a873c5a7a380f36ef4b4137f789139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54f5fbabc072c8585da9a7104aa7b3a1b0a873c5a7a380f36ef4b4137f789139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f5fbabc072c8585da9a7104aa7b3a1b0a873c5a7a380f36ef4b4137f789139", kill_on_drop: false }`
[INFO] [stdout] 54f5fbabc072c8585da9a7104aa7b3a1b0a873c5a7a380f36ef4b4137f789139
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d98d86f3f4a04cabdb5091a0ebb992a0c6a757b70e3e54f114eb90bbad8bb1ec
[INFO] running `Command { std: "docker" "start" "-a" "d98d86f3f4a04cabdb5091a0ebb992a0c6a757b70e3e54f114eb90bbad8bb1ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking dears v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/population.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::population::*`
[INFO] [stdout]  --> src/selection.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::population::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/population.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::population::*`
[INFO] [stdout]  --> src/selection.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::population::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/lib.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/population.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/population.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn select(&self, n: usize) -> Vec<usize>{
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Population` is never constructed
[INFO] [stdout]  --> src/population.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Population<G, M, C, S, F>
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `individuals`, `fitnesses`, `mutator`, `crossover`, and `selector` are never read
[INFO] [stdout]   --> src/population.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Population<G, M, C, S, F>
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     individuals: Vec<G>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 17 |     fitnesses: Vec<F>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 18 |     mutator: M,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 19 |     crossover: C,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     selector: S
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mutate_with_chance` and `select` are never used
[INFO] [stdout]   --> src/population.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | / impl<G, M, C, S, F> Population<G, M, C, S, F>
[INFO] [stdout] 24 | | where
[INFO] [stdout] 25 | |     M: Mutator<G>,
[INFO] [stdout] 26 | |     C: Crossover<G>,
[INFO] [stdout] 27 | |     S: SelectMany<F>,
[INFO] [stdout] 28 | |     F: Clone
[INFO] [stdout]    | |____________- methods in this implementation
[INFO] [stdout] 29 |   {
[INFO] [stdout] 30 |       fn mutate_with_chance(&mut self, indpb: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |       fn select(&self, n: usize) -> Vec<usize>{
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/population.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/population.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn select(&self, n: usize) -> Vec<usize>{
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dears` (lib) due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Population` is never constructed
[INFO] [stdout]  --> src/population.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Population<G, M, C, S, F>
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `individuals`, `fitnesses`, `mutator`, `crossover`, and `selector` are never read
[INFO] [stdout]   --> src/population.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Population<G, M, C, S, F>
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     individuals: Vec<G>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 17 |     fitnesses: Vec<F>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 18 |     mutator: M,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 19 |     crossover: C,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     selector: S
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mutate_with_chance` and `select` are never used
[INFO] [stdout]   --> src/population.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | / impl<G, M, C, S, F> Population<G, M, C, S, F>
[INFO] [stdout] 24 | | where
[INFO] [stdout] 25 | |     M: Mutator<G>,
[INFO] [stdout] 26 | |     C: Crossover<G>,
[INFO] [stdout] 27 | |     S: SelectMany<F>,
[INFO] [stdout] 28 | |     F: Clone
[INFO] [stdout]    | |____________- methods in this implementation
[INFO] [stdout] 29 |   {
[INFO] [stdout] 30 |       fn mutate_with_chance(&mut self, indpb: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |       fn select(&self, n: usize) -> Vec<usize>{
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dears` (lib test) due to 1 previous error; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d98d86f3f4a04cabdb5091a0ebb992a0c6a757b70e3e54f114eb90bbad8bb1ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98d86f3f4a04cabdb5091a0ebb992a0c6a757b70e3e54f114eb90bbad8bb1ec", kill_on_drop: false }`
[INFO] [stdout] d98d86f3f4a04cabdb5091a0ebb992a0c6a757b70e3e54f114eb90bbad8bb1ec
