Merge #3754

3754: Use automatic thread joining for cargo-watch r=matklad a=matklad

r? @kiljacken 

Co-authored-by: Aleksey Kladov <[email protected]>

1 files changed, 8 insertions, 0 deletions

diff --git a/crates/ra_prof/src/lib.rs b/crates/ra_prof/src/lib.rs
index 9e167db96..00ea3a9b0 100644
--- a/crates/ra_prof/src/lib.rs
+++ b/crates/ra_prof/src/lib.rs
@@ -339,6 +339,14 @@ pub fn print_backtrace() {
     let bt = backtrace::Backtrace::new();
     eprintln!("{:?}", bt);
 }
+#[cfg(not(feature = "backtrace"))]
+pub fn print_backtrace() {
+    eprintln!(
+        r#"enable the backtrace feature:
+    ra_prof = {{ path = "../ra_prof", features = [ "backtrace"] }}
+"#
+    );
+}
 
 thread_local!(static IN_SCOPE: RefCell<bool> = RefCell::new(false));