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[1 of 3] Processing p
[1 of 2] Compiling H[sig] ( p\H.hsig, nothing )
[2 of 2] Compiling M ( p\M.hs, nothing )
[2 of 3] Processing q
Instantiating q
[1 of 1] Compiling H ( q\H.hs, bkpfail27.out\q\H.o )
[3 of 3] Processing r
Instantiating r
[1 of 1] Including p[H=q:H]
Instantiating p[H=q:H]
[1 of 2] Compiling H[sig] ( p\H.hsig, bkpfail27.out\p\p-D5Mg3foBSCrDbQDKH4WGSG\H.o )
bkpfail27.bkp:15:9: error: [GHC-15843]
• Type constructor ‘T’ has conflicting definitions in the module
and its hsig file.
Main module: type T :: *
type T = F
Hsig file: type T :: *
data T
Illegal implementation of abstract data: Invalid type family ‘F’.
• While checking that ‘q:H’ implements signature ‘H’ in ‘p[H=q:H]’.
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