[INFO] cloning repository https://github.com/luiz734/genetic-algorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luiz734/genetic-algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluiz734%2Fgenetic-algorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluiz734%2Fgenetic-algorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4a5a790c9e63299bd1f088f780b5bc52515da2f
[INFO] checking luiz734/genetic-algorithm against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluiz734%2Fgenetic-algorithm" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luiz734/genetic-algorithm
[INFO] finished tweaking git repo https://github.com/luiz734/genetic-algorithm
[INFO] tweaked toml for git repo https://github.com/luiz734/genetic-algorithm written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luiz734/genetic-algorithm on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luiz734/genetic-algorithm 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" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 0c0778d3f9a490619d0b14edfd46a31798b8730d1abb4eda161187c73b220ad3
[INFO] running `Command { std: "docker" "start" "-a" "0c0778d3f9a490619d0b14edfd46a31798b8730d1abb4eda161187c73b220ad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c0778d3f9a490619d0b14edfd46a31798b8730d1abb4eda161187c73b220ad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0778d3f9a490619d0b14edfd46a31798b8730d1abb4eda161187c73b220ad3", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16714995eae85881a5b3d2df8fed7ccff2f111c35ded1993d2fa1df9e4d3d2eb
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[INFO] [stderr]     Checking genetic-algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `current_gen` and `fitness` are never read
[INFO] [stdout]   --> src/genetic_algorithm.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 9  |    pub struct Data {
[INFO] [stdout]    |               ---- fields in this struct
[INFO] [stdout] 10 |       pub current_gen: usize,
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 11 |       pub order: Vec<usize>,
[INFO] [stdout] 12 |       pub fitness: f32,
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/canvas.rs:13:48
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(width: u32, height: u32, title: &str, scale_x: f32, scale_y: f32) -> Canvas {
[INFO] [stdout]    |                                                ^^^^                                 ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(width: u32, height: u32, title: &str, scale_x: f32, scale_y: f32) -> Canvas<'_> {
[INFO] [stdout]    |                                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `current_gen` and `fitness` are never read
[INFO] [stdout]   --> src/genetic_algorithm.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 9  |    pub struct Data {
[INFO] [stdout]    |               ---- fields in this struct
[INFO] [stdout] 10 |       pub current_gen: usize,
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 11 |       pub order: Vec<usize>,
[INFO] [stdout] 12 |       pub fitness: f32,
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/canvas.rs:13:48
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(width: u32, height: u32, title: &str, scale_x: f32, scale_y: f32) -> Canvas {
[INFO] [stdout]    |                                                ^^^^                                 ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(width: u32, height: u32, title: &str, scale_x: f32, scale_y: f32) -> Canvas<'_> {
[INFO] [stdout]    |                                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.92s
[INFO] running `Command { std: "docker" "inspect" "16714995eae85881a5b3d2df8fed7ccff2f111c35ded1993d2fa1df9e4d3d2eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16714995eae85881a5b3d2df8fed7ccff2f111c35ded1993d2fa1df9e4d3d2eb", kill_on_drop: false }`
[INFO] [stdout] 16714995eae85881a5b3d2df8fed7ccff2f111c35ded1993d2fa1df9e4d3d2eb
