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-rw-r--r--compiler/rustc_errors/src/diagnostic_builder.rs3
-rw-r--r--compiler/rustc_errors/src/lib.rs3
2 files changed, 1 insertions, 5 deletions
diff --git a/compiler/rustc_errors/src/diagnostic_builder.rs b/compiler/rustc_errors/src/diagnostic_builder.rs
index e72791d89a2..3789cdaf354 100644
--- a/compiler/rustc_errors/src/diagnostic_builder.rs
+++ b/compiler/rustc_errors/src/diagnostic_builder.rs
@@ -266,8 +266,7 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
     /// Converts the builder to a `Diagnostic` for later emission,
     /// unless dcx has disabled such buffering.
     pub fn into_diagnostic(mut self) -> Option<(Diagnostic, &'a DiagCtxt)> {
-        let flags = self.dcx.inner.lock().flags;
-        if flags.dont_buffer_diagnostics || flags.treat_err_as_bug.is_some() {
+        if self.dcx.inner.lock().flags.treat_err_as_bug.is_some() {
             self.emit();
             return None;
         }
diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs
index b97ec02675a..76b7e0d79a9 100644
--- a/compiler/rustc_errors/src/lib.rs
+++ b/compiler/rustc_errors/src/lib.rs
@@ -524,9 +524,6 @@ pub struct DiagCtxtFlags {
     /// If Some, the Nth error-level diagnostic is upgraded to bug-level.
     /// (rustc: see `-Z treat-err-as-bug`)
     pub treat_err_as_bug: Option<NonZeroUsize>,
-    /// If true, immediately emit diagnostics that would otherwise be buffered.
-    /// (rustc: see `-Z dont-buffer-diagnostics` and `-Z treat-err-as-bug`)
-    pub dont_buffer_diagnostics: bool,
     /// Show macro backtraces.
     /// (rustc: see `-Z macro-backtrace`)
     pub macro_backtrace: bool,