site warnings on core24

[yvs2014]

the following snapcraft.yaml snippet for core24

base: core24
...
platforms:
  amd64:
  arm64:
  armhf:

triggers next message on snapcraft.io site at build stage: We have detected that your snap base is core20 or newer. This is not compatible with the i386 architecture, therefore that architecture will no longer be built.

Not sure what's the warning origin is: some lint or site itself

p.s. snap building goes as usual