Merge branch 'master' into staging-next

Comments on conflicts:
- llvm: d6f401e1 vs. 469ecc70 - docs for 6 and 7 say the default is
  to build all targets, so we should be fine
- some pypi hashes: they were equivalent, just base16 vs. base32

pkgs/development/python-modules/cryptography_vectors/default.nix

@@ -1,6 +1,4 @@
-{ buildPythonPackage
-, fetchPypi
-}:
+{ buildPythonPackage, fetchPypi, lib }:
 
 buildPythonPackage rec {
   # also bump cryptography
@@ -14,4 +12,12 @@ buildPythonPackage rec {
 
   # No tests included
   doCheck = false;
+
+  meta = with lib; {
+    description = "Test vectors for the cryptography package";
+    homepage = https://cryptography.io/en/latest/development/test-vectors/;
+    # Source: https://github.com/pyca/cryptography/tree/master/vectors;
+    license = with licenses; [ asl20 bsd3 ];
+    maintainers = with maintainers; [ primeos ];
+  };
 }