git-dbg missing?

I am experiencing a crash in git, but I can't figure out how to install debugging symbols for it to get a useful backtrace in gdb.

This is what I tried:

$ sudo apk add git-dbg
ERROR: unsatisfiable constraints:
  git-dbg (missing):
    required by: world[git-dbg]

I did install musl-dbg, but with that the backtrace still looks pretty useless:

#0  0x0000aaaaaabcb00c in ?? ()
#1  0x0000aaaaaabb8220 in ?? ()
#2  0x0000aaaaaabb8aa4 in ?? ()
#3  0x0000aaaaaab00f30 in ?? ()
#4  0x0000aaaaaab0182c in ?? ()
#5  0x0000aaaaaaac7b84 in ?? ()
#6  0x0000aaaaaaac888c in ?? ()
#7  0x0000aaaaaaac75ec in ?? ()
#8  0x0000fffff7f7077c in libc_start_main_stage2 (main=0xaaaaaaac7540, argc=2, argv=0xfffffffffb98)
    at src/env/__libc_start_main.c:94
#9  0x0000000000000000 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)