anchor.diff:      };
       foundation = fetch {
         repo = "swift-corelibs-foundation";
  -      sha256 = "06pbhb7wg4q5qgprhiyzbqy6hssga7xxjclhlh81gd6rvfd6bxvw";
  +      sha256 = "1bhrag63rmz41bg2g6ap01qrdpq37hislgf5hg6myy2v69q7mahx";
       };
       libdispatch = fetch {
         repo = "swift-corelibs-libdispatch";
  
positive.code:     };
      lldb = fetch {
        repo = "swift-lldb";
        sha256 = "09x3d3bc6rn9g6jpi3fb120c4r2carsmqla4bq4scjrs0867jz9m";
      };
      llbuild = fetch {
        repo = "swift-llbuild";
  
negative.code:     };
      llvm = fetch {
        repo = "swift-llvm";
        sha256 = "0q5cv4iydm8c1kcax32573y3q2cbpihwgj5aa8ws1fnpy4jvq934";
      };
      compilerrt = fetch {
        repo = "swift-compiler-rt";
  