2 files changed, 6 insertions, 3 deletions

diff --git a/crates/ra_hir_ty/Cargo.toml b/crates/ra_hir_ty/Cargo.toml
index cdabb359f..7242e2cb6 100644
--- a/crates/ra_hir_ty/Cargo.toml
+++ b/crates/ra_hir_ty/Cargo.toml
@@ -37,4 +37,4 @@ expect = { path = "../expect" }
 
 tracing = "0.1"
 tracing-subscriber = { version = "0.2", default-features = false, features = ["env-filter", "registry"] }
-tracing-tree = { version = "0.1.3" }
+tracing-tree = { version = "0.1.4" }
diff --git a/crates/ra_hir_ty/src/diagnostics.rs b/crates/ra_hir_ty/src/diagnostics.rs
index d3ee9cf55..885abbaf2 100644
--- a/crates/ra_hir_ty/src/diagnostics.rs
+++ b/crates/ra_hir_ty/src/diagnostics.rs
@@ -234,6 +234,9 @@ impl Diagnostic for MismatchedArgCount {
     fn as_any(&self) -> &(dyn Any + Send + 'static) {
         self
     }
+    fn is_experimental(&self) -> bool {
+        true
+    }
 }
 
 impl AstDiagnostic for MismatchedArgCount {
@@ -248,7 +251,7 @@ impl AstDiagnostic for MismatchedArgCount {
 #[cfg(test)]
 mod tests {
     use hir_def::{db::DefDatabase, AssocItemId, ModuleDefId};
-    use hir_expand::diagnostics::{Diagnostic, DiagnosticSink};
+    use hir_expand::diagnostics::{Diagnostic, DiagnosticSinkBuilder};
     use ra_db::{fixture::WithFixture, FileId, SourceDatabase, SourceDatabaseExt};
     use ra_syntax::{TextRange, TextSize};
     use rustc_hash::FxHashMap;
@@ -280,7 +283,7 @@ mod tests {
                 }
 
                 for f in fns {
-                    let mut sink = DiagnosticSink::new(&mut cb);
+                    let mut sink = DiagnosticSinkBuilder::new().build(&mut cb);
                     validate_body(self, f.into(), &mut sink);
                 }
             }