Configuring cereal-0.5.8.0...
Preprocessing library for cereal-0.5.8.0..
Building library for cereal-0.5.8.0..
[1 of 4] Compiling Data.Serialize.Get ( src/Data/Serialize/Get.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Serialize/Get.o )
[2 of 4] Compiling Data.Serialize.Put ( src/Data/Serialize/Put.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Serialize/Put.o )
[3 of 4] Compiling Data.Serialize.IEEE754 ( src/Data/Serialize/IEEE754.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Serialize/IEEE754.o )
[4 of 4] Compiling Data.Serialize   ( src/Data/Serialize.hs, .stack-work/dist/x86_64-linux/Cabal-2.4.0.1/build/Data/Serialize.o )

src/Data/Serialize.hs:291:9: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘findNr’: Patterns not matched: _ _
    |
291 |         findNr lo hi
    |         ^^^^^^^^^^^^...
Installing library in /home/sv/.stack/snapshots/x86_64-linux/lts-13.22/8.6.5/lib/x86_64-linux-ghc-8.6.5/cereal-0.5.8.0-6rtfJLvNbgP66iuaPkuxJC
Registering library for cereal-0.5.8.0..