1 files changed, 8 insertions, 1 deletions
diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
index 795cb2b2cfe..81ada79dd43 100644
--- a/compiler/rustc_session/src/config.rs
+++ b/compiler/rustc_session/src/config.rs
@@ -29,7 +29,8 @@ use rustc_span::{
     SourceFileHashAlgorithm, Symbol, sym,
 };
 use rustc_target::spec::{
-    FramePointer, LinkSelfContainedComponents, LinkerFeatures, SplitDebuginfo, Target, TargetTuple,
+    FramePointer, LinkSelfContainedComponents, LinkerFeatures, PanicStrategy, SplitDebuginfo,
+    Target, TargetTuple,
 };
 use tracing::debug;
 
@@ -2799,6 +2800,12 @@ pub fn build_session_options(early_dcx: &mut EarlyDiagCtxt, matches: &getopts::M
         }
     }
 
+    if !unstable_options_enabled && cg.panic == Some(PanicStrategy::ImmediateAbort) {
+        early_dcx.early_fatal(
+            "`-Cpanic=immediate-abort` requires `-Zunstable-options` and a nightly compiler",
+        )
+    }
+
     let crate_name = matches.opt_str("crate-name");
     let unstable_features = UnstableFeatures::from_environment(crate_name.as_deref());
     // Parse any `-l` flags, which link to native libraries.