Update head.hackage and fix warning

Author: hamishmack

builder/comp-builder.nix

@@ -382,7 +382,6 @@ let
       env = shellWrappers.drv;
       shell = drv.overrideAttrs (attrs: {
         pname = nameOnly + "-shell";
-        inherit (package.identifier) version;
         nativeBuildInputs = [shellWrappers.drv] ++ attrs.nativeBuildInputs;
       });
       profiled = lib.makeOverridable self (drvArgs // { enableLibraryProfiling = true; });

test/cabal.project.local

@@ -29,7 +29,7 @@ repository head.hackage.ghc.haskell.org
      f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89
      26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329
      7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d
-  --sha256: sha256-Zu+OsPXt+tUllxC2LVJ3jneYGUH5GvdemZZPnynWaN0=
+  --sha256: sha256-8/2gNDSHkQh9bomw9KNMRiV6Z187mRPp/Mkh4WcbtcM=
 
 repository ghcjs-overlay
   url: https://raw.githubusercontent.com/input-output-hk/hackage-overlay-ghcjs/ffb32dce467b9a4d27be759fdd2740a6edd09d0b