chore(rustup): Update for structured errors rust-lang/rust#30542

Author: pczarn

quasi/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "quasi"
-version = "0.3.11"
+version = "0.3.12"
 authors = ["Erick Tryzelaar <[email protected]>"]
 license = "MIT/Apache-2.0"
 description = "A quasi-quoting macro system"

quasi/src/lib.rs

@@ -329,11 +329,20 @@ impl<'a> ExtParseUtils for ExtCtxt<'a> {
     }
 }
 
+// A variant of 'try!' that panics on an Err. This is used as a crutch on the
+// way towards a non-panic!-prone parser. It should be used for fatal parsing
+// errors; eventually we plan to convert all code using panictry to just use
+// normal try.
 macro_rules! panictry {
     ($e:expr) => ({
+        use std::result::Result::{Ok, Err};
+        use syntax::errors::FatalError;
         match $e {
             Ok(e) => e,
-            Err(err) => panic!(err)
+            Err(mut e) => {
+                e.emit();
+                panic!(FatalError);
+            }
         }
     })
 }