Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] trying: simdutf-0.1.0 (user goal)
[__1] unknown package: system-cxx-std-lib (dependency of simdutf)
[__1] fail (backjumping, conflict set: simdutf, system-cxx-std-lib)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: simdutf, system-cxx-std-lib