The problem here is that the plugins, which are distributed by the Plugin Manager, are compiled with gcc 11.2
and your Rack version is not. To use plugins distributed by the Plugin Manager with a Rack development version (compiled from source), you have to compile Rack with a version 11.2+ of gcc. Otherwise you might encounter the above error and plugins will fail to load. This is a known issue of backwards compatibility with gcc 11+.
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