gistfile1.txt

--  While building custom Setup.hs for package clash-prelude-0.99 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.0.0.2_ghc-8.2.1.exe --builddir=.stack-work\dist\e53504d9 build lib:clash-prelude --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: D:\code\clash-compiler\.stack-work\logs\clash-prelude-0.99.log

    Configuring clash-prelude-0.99...
    Warning:
        This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
          package time (time-1.8.0.2-6D7zA6hvj7J2L4fRhEphEi) requires Win32-2.4.0.0-6h2GtvaqnjAGgAinwN44RU
          package time (time-1.8.0.2) requires Win32-2.5.4.1
          package process (process-1.6.1.0) requires Win32-2.5.4.1
          package ghc (ghc-8.2.1) requires Win32-2.5.4.1
          package directory (directory-1.3.0.2) requires Win32-2.5.4.1
          package hpc (hpc-0.6.0.3) requires time-1.8.0.2
          package ghc (ghc-8.2.1) requires time-1.8.0.2
          package directory (directory-1.3.0.2) requires time-1.8.0.2
          package tf-random (tf-random-0.5-2v9OFXZFfIM5uAmIRwm1Q5) requires time-1.8.0.2-6D7zA6hvj7J2L4fRhEphEi
          package random (random-1.1-LcJhSx4EclfFKdBgn3vAoi) requires time-1.8.0.2-6D7zA6hvj7J2L4fRhEphEi
    Preprocessing library for clash-prelude-0.99..
    Building library for clash-prelude-0.99..
    [ 1 of 63] Compiling Clash.Annotations.Primitive ( src\Clash\Annotations\Primitive.hs, .stack-work\dist\e53504d9\build\Clash\Annotations\Primitive.o )
    [ 2 of 63] Compiling Clash.Annotations.TopEntity ( src\Clash\Annotations\TopEntity.hs, .stack-work\dist\e53504d9\build\Clash\Annotations\TopEntity.o )
    [ 3 of 63] Compiling Clash.Class.Num  ( src\Clash\Class\Num.hs, .stack-work\dist\e53504d9\build\Clash\Class\Num.o )
    [ 4 of 63] Compiling Clash.Class.Resize ( src\Clash\Class\Resize.hs, .stack-work\dist\e53504d9\build\Clash\Class\Resize.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\sr\snapshots\b8803698\lib\x86_64-windows-ghc-8.2.1\Win32-2.4.0.0-6h2GtvaqnjAGgAinwN44RU\HSWin32-2.4.0.0-6h2GtvaqnjAGgAinwN44RU.o
    The symbol was previously defined in
       C:\Users\chas\AppData\Local\Programs\stack\x86_64-windows\ghc-8.2.1\lib\Win32-2.5.4.1\HSWin32-2.5.4.1.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.2.1 for x86_64-unknown-mingw32):
        loadObj "C:\\sr\\snapshots\\b8803698\\lib\\x86_64-windows-ghc-8.2.1\\Win32-2.4.0.0-6h2GtvaqnjAGgAinwN44RU\\HSWin32-2.4.0.0-6h2GtvaqnjAGgAinwN44RU.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug