Created attachment 3842 [details] diffoscope output that corroborates the claim. Looking at the generated wrappers for gobject-introspection, it shows several references to the host build path (and build user name!). That cannot be right. Please see the attached file.
Alex Kanavin confirmed the wrappers are only needed when cross-compiling. So the fix is not to include the wrappers from the final image.
http://lists.openembedded.org/pipermail/openembedded-core/2017-October/143614.html
merged http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=ef3f6b5552d0d3b9b60a84df1b5a22745534430c