move benches to separate crate to cut test/example build times

.gitignore

@@ -5,3 +5,4 @@ Cargo.lock
 .cargo/config
 /.idea
 /.vscode
+/benches/target

Cargo.toml

@@ -46,6 +46,7 @@ members = [
     "crates/*",
     "crates/bevy_ecs/hecs",
 ]
+exclude = ["benches"]
 
 [dependencies]
 # bevy
@@ -78,7 +79,6 @@ bevy_winit = { path = "crates/bevy_winit", optional = true, version = "0.1" }
 [dev-dependencies]
 rand = "0.7.2"
 serde = { version = "1", features = ["derive"]}
-criterion = "0.3"
 
 [[example]]
 name = "hello_world"
@@ -247,8 +247,3 @@ path = "examples/window/multiple_windows.rs"
 [[example]]
 name = "window_settings"
 path = "examples/window/window_settings.rs"
-
-[[bench]]
-name = "iter"
-path = "crates/bevy_tasks/benches/iter.rs"
-harness = false

benches/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "benches"
+version = "0.1.0"
+authors = ["Carter Anderson <mcanders1@gmail.com>"]
+edition = "2018"
+
+[dev-dependencies]
+criterion = "0.3"
+bevy = { path = "../" }
+
+[[bench]]
+name = "iter"
+path = "benches/bevy_tasks/iter.rs"
+harness = false

benches/benches/bevy_tasks/iter.rs

@@ -1,4 +1,4 @@
-use bevy_tasks::{ParallelIterator, TaskPoolBuilder};
+use bevy::tasks::{ParallelIterator, TaskPoolBuilder};
 use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion};
 
 struct ParChunks<'a, T>(std::slice::Chunks<'a, T>);