What the OP is probably referring to is that Rust does not have a runtime in the typical sense used by languages such as Java. Rust does have a runtime, as all

What the OP is probably referring to is that Rust does not have a runtime in the typical sense used by languages such as Java. Rust does have a runtime, as all non-assembly languages do, but it is very very small. Languages with minimal runtimes like C or Rust are commonly referred to as having "no runtime".