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[1 of 3] Compiling T14365B[boot] ( T14365B.hs-boot, T14365B.o-boot )
T14365B.hs-boot:5:13: error:
• Can't make a derived instance of ‘Functor Foo’:
Cannot derive instances in hs-boot files
Write an instance declaration instead
• In the data declaration for ‘Foo’
T14365B.hs-boot:7:1: error:
• Can't make a derived instance of ‘Foldable Foo’:
Cannot derive instances in hs-boot files
Write an instance declaration instead
• In the stand-alone deriving instance for ‘Foldable Foo’
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