I believe what hobofan is implying is that the Rust developers have resisted bending the language <i>solely</i> to the needs of Servo, despite there originally being almost a 50&#x2F;50 overlap between the Rust and Servo developers (nowadays the division is more clear, with pcwalton working full-time on Servo and brson working full-time on Rust).<p>The most notable example is the proposal variously known as &quot;virtual structs&quot; or &quot;inheritance&quot;, which had a brief prototype implementation in Rust (circa 2013) solely to support Servo&#x27;s needs (specifically regarding representing the DOM), but which met a wall of opposition from the community. Such a feature is still likely to appear sometime in the future (after all, if Servo needs it, then it&#x27;s likely that others do too), but the Rust developers are taking their time to explore solutions that integrate the most cleanly with the rest of the language.