panic("Something in this program imports go4.org/unsafe/assume-no-moving-gc to declare that it assumes a non-moving garbage collector, but your version of go4.org/unsafe/assume-no-moving-gc hasn't been updated to assert that it's safe against the "+v+" runtime. If you want to risk it, run with environment variable "+env+"="+v+" set. Notably, if "+v+" adds a moving garbage collector, this program is unsafe to use.")