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mpd from alpine works fine, from alpine:edge it does not work.

thomas@roper mpd % docker run -it mpd /bin/sh
/ # strace /usr/bin/mpd
execve("/usr/bin/mpd", ["/usr/bin/mpd"], 0x7ffea80d73b0 /* 6 vars */) = -1 EPERM (Operation not permitted)
strace: exec: Operation not permitted
+++ exited with 1 +++
/ # stat /usr/bin/mpd
  File: /usr/bin/mpd
  Size: 1055136         Blocks: 2064       IO Block: 4096   regular file
Device: 63h/99d Inode: 21385822    Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-09-24 19:35:14.000000000
Modify: 2020-09-24 19:35:14.000000000
Change: 2020-10-04 12:19:05.000000000

I have this both on x64 and arm64 docker containers (RUN apk add mpd mpc). I tried creating a qemu virt VM from alpine iso image to reproduce in a non-container environment but I couldn't get networking to work there.