Resolving dependencies...
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Starting     os-string-2.0.7
Starting     prettyprinter-1.7.1
Starting     mmap-0.5.9
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Building     mmap-0.5.9
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Building     zlib-0.7.1.0
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Starting     ansi-terminal-1.1.2
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Starting     unordered-containers-0.2.20
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Starting     optparse-applicative-0.18.1.0
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Downloading  twobitreader-1.0.1
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Starting     twobitreader-1.0.1
Building     twobitreader-1.0.1
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