Noticed that metadata::Encode::enc_sty didn't have a case for ty_task, so I added one (though this wasn't causing the problem I was seeing...

catamorphism · catamorphism · commit c75125fcce86 · 2011-05-16T16:13:11.000-07:00
diff --git a/src/comp/middle/metadata.rs b/src/comp/middle/metadata.rs
@@ -228,6 +228,7 @@ mod Encode {
                 w.write_str(common::uistr(id));
             }
             case (ty::ty_type) {w.write_char('Y');}
+            case (ty::ty_task) {w.write_char('a');}
 
             // These two don't appear in crate metadata, but are here because
             // `hash_ty()` uses this function.

Original file line number	Diff line number	Diff line change
`@@ -228,6 +228,7 @@ mod Encode {`
`228`	`228`	`w.write_str(common::uistr(id));`
`229`	`229`	`}`
`230`	`230`	`case (ty::ty_type) {w.write_char('Y');}`
	`231`	`+ case (ty::ty_task) {w.write_char('a');}`
`231`	`232`
`232`	`233`	`// These two don't appear in crate metadata, but are here because`
`233`	`234`	// `hash_ty()` uses this function.