I did some analysis [here](https://github.com/ocaml/infrastructure/issues/121).
libseccomp needs to be >= 2.55 and Docker >= 25.0.3 and then this issue goes away. Without these the system call `fchmodat2` return EPERM rather than `ENOSYS`.
I did some analysis [here](https:/ /github. com/ocaml/ infrastructure/ issues/ 121).
libseccomp needs to be >= 2.55 and Docker >= 25.0.3 and then this issue goes away. Without these the system call `fchmodat2` return EPERM rather than `ENOSYS`.