Remove debug panic in package-features.

Author: ehuss

src/cargo/ops/resolve.rs

@@ -261,7 +261,6 @@ pub fn resolve_with_previous<'cfg>(
                     failure::bail!("cannot specify features for packages outside of workspace");
                 }
                 members.extend(ws.members());
-                panic!("tested?");
             }
         }
         for member in members {

tests/testsuite/features.rs

@@ -1425,6 +1425,9 @@ fn combining_features_and_package() {
     p.cargo("run -Z package-features --package bar --features main")
         .masquerade_as_nightly_cargo()
         .run();
+    p.cargo("build -Z package-features --package dep")
+        .masquerade_as_nightly_cargo()
+        .run();
 }
 
 #[cargo_test]