Starting download of /gnu/store/cqyri0kmw8gdln0cqcbxcv5g6bvpgrry-ghc-8.4.3-testsuite.tar.xz
From https://www.haskell.org/ghc/dist/8.4.3/ghc-8.4.3-testsuite.tar.xz...
following redirection to `https://downloads.haskell.org/~ghc/8.4.3/ghc-8.4.3-testsuite.tar.xz'...

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