asyncrepro
run netcat in one shell
nc -l 3070
then in another shell
stack run asyncrepro-exe
you should get the following output
asyncrepro-exe: internal error: ASSERTION FAILED: file rts/Schedule.h, line 175
(GHC version 9.4.7 for x86_64_unknown_linux)
Please report this as a GHC bug: https://www.haskell.org/ghc/reportabug
Aborted