src/Main.hs:17:1: warning: [-Wunused-imports]
    The qualified import of ‘Data.ByteString.Lazy.Char8’ is redundant
      except perhaps to import instances from ‘Data.ByteString.Lazy.Char8’
    To import instances alone, use: import Data.ByteString.Lazy.Char8()
   |
17 | import Data.ByteString.Lazy.Char8 qualified as B
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

src/Main.hs:18:1: warning: [-Wunused-imports]
    The import of ‘Data.Either’ is redundant
      except perhaps to import instances from ‘Data.Either’
    To import instances alone, use: import Data.Either()
   |
18 | import Data.Either
   | ^^^^^^^^^^^^^^^^^^

src/Main.hs:20:1: warning: [-Wunused-imports]
    The import of ‘GHC.Generics’ is redundant
      except perhaps to import instances from ‘GHC.Generics’
    To import instances alone, use: import GHC.Generics()
   |
20 | import GHC.Generics (Generic)
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

src/Main.hs:22:1: warning: [-Wunused-imports]
    The import of ‘System.Environment’ is redundant
      except perhaps to import instances from ‘System.Environment’
    To import instances alone, use: import System.Environment()
   |
22 | import System.Environment
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

src/Main.hs:32:11: warning: [GHC-63397] [-Wname-shadowing]
    This binding for ‘a’ shadows the existing binding
      bound at src/Main.hs:30:41
   |
32 |         f a b = fromIntegral a + b
   |           ^

src/Main.hs:32:13: warning: [GHC-63397] [-Wname-shadowing]
    This binding for ‘b’ shadows the existing binding
      bound at src/Main.hs:30:43
   |
32 |         f a b = fromIntegral a + b
   |             ^

src/Main.hs:57:11: warning: [GHC-63397] [-Wname-shadowing]
    This binding for ‘a’ shadows the existing binding
      bound at src/Main.hs:55:41
   |
57 |         f a b = (fromIntegral a - b) ** 2
   |           ^

src/Main.hs:57:13: warning: [GHC-63397] [-Wname-shadowing]
    This binding for ‘b’ shadows the existing binding
      bound at src/Main.hs:55:43
   |
57 |         f a b = (fromIntegral a - b) ** 2
   |             ^

src/Main.hs:103:1: warning: [GHC-62161] [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘dynamicImagetoYCbCr’:
        Patterns of type ‘DynamicImage’ not matched:
            ImageY8 _
            ImageY16 _
            ImageY32 _
            ImageYF _
            ...
    |
103 | dynamicImagetoYCbCr (P.ImageRGB8 img) = P.convertImage img
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^...
[2 of 2] Compiling Paths_colortransfer ( dist/build/colortransfer/autogen/Paths_colortransfer.hs, dist/build/colortransfer/colortransfer-tmp/Paths_colortransfer.o )
[3 of 3] Linking dist/build/colortransfer/colortransfer
Preprocessing library for colortransfer-1.0.0.0..
Building library for colortransfer-1.0.0.0..
[1 of 3] Compiling Main             ( src/Main.hs, dist/build/Main.o, dist/build/Main.dyn_o )
[[2 of 33 of ] Compiling3 ] LinkingPaths_colortransfer  (./src/Main 
dist/build/autogen/Paths_colortransfer.hs, dist/build/Paths_colortransfer.o, dist/build/Paths_colortransfer.dyn_o )
@nix {"action":"setPhase","phase":"checkPhase"}
Running phase: checkPhase
Package has no test suites.
@nix {"action":"setPhase","phase":"haddockPhase"}
Running phase: haddockPhase
@nix {"action":"setPhase","phase":"installPhase"}
Running phase: installPhase
Installing executable colortransfer in /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/bin
Warning: The directory
/nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/bin is not
in the system search path.
Installing library in /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/lib/ghc-9.6.5/lib/x86_64-linux-ghc-9.6.5/colortransfer-1.0.0.0-BuxdIftL4ej62gMYFEzhti
Registering library for colortransfer-1.0.0.0..
@nix {"action":"setPhase","phase":"fixupPhase"}
Running phase: fixupPhase
shrinking RPATHs of ELF executables and libraries in /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0
shrinking /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/lib/ghc-9.6.5/lib/x86_64-linux-ghc-9.6.5/libHScolortransfer-1.0.0.0-BuxdIftL4ej62gMYFEzhti-ghc9.6.5.so
shrinking /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/bin/colortransfer
checking for references to /build/ in /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0...
patching script interpreter paths in /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0
stripping (with command strip and flags -S -p) in  /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/lib /nix/store/kdsxjrhbfi5i4cl2yf20q5fk8wjmfy0g-colortransfer-1.0.0.0/bin