thread scopes are stable now.

Author: Dirbaio

Cargo.toml

@@ -63,8 +63,5 @@ version = "0.1"
 version = ">=0.2.0,<0.4"
 optional = true
 
-[build-dependencies]
-rustc_version = "0.4.0"
-
 [package.metadata.docs.rs]
 all-features = true

build.rs

@@ -8,8 +8,6 @@ use std::{
     process::{Command, ExitStatus, Stdio},
 };
 
-use rustc_version::Channel;
-
 fn main() -> Result<(), Box<dyn Error>> {
     let target = env::var("TARGET")?;
 
@@ -90,13 +88,6 @@ fn main() -> Result<(), Box<dyn Error>> {
         }
     }
 
-    if !matches!(
-        rustc_version::version_meta().unwrap().channel,
-        Channel::Stable | Channel::Beta
-    ) {
-        println!("cargo:rustc-cfg=unstable_channel");
-    }
-
     match compile_probe(ARM_LLSC_PROBE) {
         Some(status) if status.success() => println!("cargo:rustc-cfg=arm_llsc"),
         _ => {}

tests/tsan.rs

@@ -50,7 +50,6 @@ fn twice() {
 }
 
 #[test]
-#[cfg(unstable_channel)]
 fn scoped() {
     let mut rb: spsc::Queue<i32, 5> = spsc::Queue::new();
 
@@ -75,7 +74,6 @@ fn scoped() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // too slow
-#[cfg(unstable_channel)]
 fn contention() {
     const N: usize = 1024;
 
@@ -121,7 +119,6 @@ fn contention() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // too slow
-#[cfg(unstable_channel)]
 fn mpmc_contention() {
     use std::sync::mpsc;
 
@@ -172,7 +169,6 @@ fn mpmc_contention() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // too slow
-#[cfg(unstable_channel)]
 fn unchecked() {
     const N: usize = 1024;