[INFO] cloning repository https://github.com/PrinzNika/RustyBoids
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PrinzNika/RustyBoids" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrinzNika%2FRustyBoids", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrinzNika%2FRustyBoids'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 359dc48333df00876e7f889a86db604eda2d641b
[INFO] checking PrinzNika/RustyBoids against try#83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1 for pr-134021
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrinzNika%2FRustyBoids" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/PrinzNika/RustyBoids
[INFO] finished tweaking git repo https://github.com/PrinzNika/RustyBoids
[INFO] tweaked toml for git repo https://github.com/PrinzNika/RustyBoids written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PrinzNika/RustyBoids on toolchain 83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PrinzNika/RustyBoids 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" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2f54b70efe8046a9ddd89f728c939c3731c1add77f6e832c5dee423f4931c810" "/opt/rustwide/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let velocity = perceived_velocity(&self.boids);
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_velocity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     for i in 0..number {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `position` is never read
[INFO] [stdout]    --> src/main.rs:105:24
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut position = v2(0.0,0.0); 
[INFO] [stdout]     |                        ^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 112 |         position = v2(rng.gen_range(-1000.0,1000.0),rng.gen_range(-1000.0,1000.0));
[INFO] [stdout]     |         -------------------------------------------------------------------------- `position` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `velocity` is never read
[INFO] [stdout]    --> src/main.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let mut velocity = v2(0.0,0.0); 
[INFO] [stdout]     |                        ^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 113 |         velocity = v2(rng.gen_range(-1000.0,1000.0),rng.gen_range(-1000.0,1000.0));
[INFO] [stdout]     |         -------------------------------------------------------------------------- `velocity` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]    --> src/main.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 | fn event(app: &App, model: &mut Model, event: Event) {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let velocity = perceived_velocity(&self.boids);
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_velocity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     for i in 0..number {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `position` is never read
[INFO] [stdout]    --> src/main.rs:105:24
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut position = v2(0.0,0.0); 
[INFO] [stdout]     |                        ^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 112 |         position = v2(rng.gen_range(-1000.0,1000.0),rng.gen_range(-1000.0,1000.0));
[INFO] [stdout]     |         -------------------------------------------------------------------------- `position` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `velocity` is never read
[INFO] [stdout]    --> src/main.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let mut velocity = v2(0.0,0.0); 
[INFO] [stdout]     |                        ^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 113 |         velocity = v2(rng.gen_range(-1000.0,1000.0),rng.gen_range(-1000.0,1000.0));
[INFO] [stdout]     |         -------------------------------------------------------------------------- `velocity` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]    --> src/main.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 | fn event(app: &App, model: &mut Model, event: Event) {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.20s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: xcb v0.9.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "2f54b70efe8046a9ddd89f728c939c3731c1add77f6e832c5dee423f4931c810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f54b70efe8046a9ddd89f728c939c3731c1add77f6e832c5dee423f4931c810", kill_on_drop: false }`
[INFO] [stdout] 2f54b70efe8046a9ddd89f728c939c3731c1add77f6e832c5dee423f4931c810
