Reject test executables when not supported by target

Currently, compiling tests for SOLID produces an ICE, because SOLID does
not support executables.

1 files changed, 7 insertions, 0 deletions

diff --git a/compiler/rustc_session/src/output.rs b/compiler/rustc_session/src/output.rs
index b37a80274c0..2b7420cb1b2 100644
--- a/compiler/rustc_session/src/output.rs
+++ b/compiler/rustc_session/src/output.rs
@@ -177,6 +177,13 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<C
     // If we're generating a test executable, then ignore all other output
     // styles at all other locations
     if session.opts.test {
+        if !session.target.executables {
+            session.dcx().emit_warn(errors::UnsupportedCrateTypeForTarget {
+                crate_type: CrateType::Executable,
+                target_triple: &session.opts.target_triple,
+            });
+            return Vec::new();
+        }
         return vec![CrateType::Executable];
     }