Fix js

Author: newpavlov

src/js.rs

@@ -27,7 +27,7 @@ thread_local!(
     static RNG_SOURCE: Result<RngSource, Error> = getrandom_init();
 );
 
-pub(crate) unsafe fn getrandom_inner(dst: *mut u8, len: usize) -> Result<(), Error> {
+pub(crate) unsafe fn getrandom_inner(mut dst: *mut u8, mut len: usize) -> Result<(), Error> {
     RNG_SOURCE.with(|result| {
         let source = result.as_ref().map_err(|&e| e)?;