Tests are not working

[amityadav0]

I followed the following steps:

• Installed rustup
• rustup default stable
• rustup target add wasm32-unknown-unknown
• cd ref-exchange
• cargo test --all

I am getting this error: (tried on two different systems)

error[E0658]: const generics are unstable
 --> /home/ay/.cargo/registry/src/github.com-1ecc6299db9ec823/arrayvec-0.7.0/src/utils.rs:6:15
  |
6 | impl<T, const N: usize> MakeMaybeUninit<T, N> {
  |               ^
  |
  = note: see issue #74878 <https://github.com/rust-lang/rust/issues/74878> for more information

   Compiling shlex v0.1.1
error: aborting due to 69 previous errors