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Re:Shipping Rust code in Firefox by themihai on Tuesday July 12, 2016 @03:47PM (#12081816)
Testing nightly makes sense.

>>What if I would like to guarantee this property for my own code?

I think that should be an exception if the backward compatibility is to be trusted.

Re:Shipping Rust code in Firefox by steveklabnik on Tuesday July 12, 2016 @04:02PM (#12081905)
Right, but humans are fallible. Bugs happen. It's a good idea to test early and often, just to make sure: Travis runs are extremely cheap. Better to catch accidents before they make it into an actual release. More testing doesn't hurt anyone.