mem::forget() is not crashy like free(). It merely prevents destructors from being run (e.g. you could do the same by storing the value in a global variable). It's a safe method, subject to usual safety checks.
You can use an `unsafe {}` block to call literally libc::free(), or dereference a random raw C pointer, or do something else crashy. However, when talking about Rust's safety rules it's usually assumed we're not talking about code bypassing these rules on purpose.
You can use an `unsafe {}` block to call literally libc::free(), or dereference a random raw C pointer, or do something else crashy. However, when talking about Rust's safety rules it's usually assumed we're not talking about code bypassing these rules on purpose.