haskellPackages.deriving-trans 0.8.1.0 -> 0.9.0.0 https://repology.org/project/haskell:deriving-trans/versions
attrpath: haskellPackages.deriving-trans
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- Frozen haskellPackages set for 21.05 to ease backporting bug fix releases
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/138407"