Rustup

miri/bin/miri.rs

@@ -111,7 +111,7 @@ impl<'a, 'tcx: 'a, 'hir> itemlikevisit::ItemLikeVisitor<'hir> for Visitor<'a, 't
             fn visit_item(&mut self, i: &'hir hir::Item) {
                 if let hir::Item_::ItemFn(_, _, _, _, _, body_id) = i.node {
                     if i.attrs.iter().any(|attr| {
-                        attr.name().map_or(false, |n| n == "test")
+                        attr.name() == "test"
                     })
                     {
                         let did = self.0.hir.body_owner_def_id(body_id);

miri/fn_call.rs

@@ -4,7 +4,6 @@
 use rustc::mir;
 use rustc_target::spec::abi::Abi;
 use rustc_data_structures::indexed_vec::Idx;
-use rustc_target::spec::abi::Abi;
 use syntax::attr;
 use syntax::codemap::Span;
 

miri/lib.rs

@@ -14,7 +14,6 @@
 extern crate rustc_mir;
 extern crate rustc_target;
 extern crate rustc_data_structures;
-extern crate rustc_target;
 extern crate syntax;
 extern crate regex;
 #[macro_use]

miri/validation.rs

@@ -455,7 +455,10 @@ fn field_with_lifetimes(
                     }
 
                     // Discriminant field for enums (where applicable).
-                    Variants::Tagged { ref discr, .. } |
+                    Variants::Tagged { ref tag, .. } => {
+                        assert_eq!(i, 0);
+                        return Ok(tag.value.to_ty(tcx))
+                    },
                     Variants::NicheFilling { niche: ref discr, .. } => {
                         assert_eq!(i, 0);
                         return Ok(discr.value.to_ty(tcx))