fast trap build failed due to #[naked]

[jackfiled]

After rust-lang/rust#128651 merged in nightly toolchain, we should use #[unsafe(naked)] instead of #[naked].

As #3 has tried to fix this question, but it just fixed the code in the test-app. And the code in the fast-trap/src/hal/riscv/mod.rs still use #[naked], so the project build cargo xtask make --arch rv64:m fails as follows:

error: unsafe attribute used without unsafe
   --> fast-trap/src/hal/riscv/mod.rs:111:3
    |
111 | #[naked]
    |   ^^^^^ usage of unsafe attribute
    |
help: wrap the attribute in `unsafe(...)`
    |
111 | #[unsafe(naked)]
    |   +++++++     +

error: unsafe attribute used without unsafe
   --> fast-trap/src/hal/riscv/mod.rs:129:3
    |
129 | #[naked]
    |   ^^^^^ usage of unsafe attribute
    |
help: wrap the attribute in `unsafe(...)`
    |
129 | #[unsafe(naked)]
    |   +++++++     +

warning: `fast-trap` (lib) generated 1 warning
error: could not compile `fast-trap` (lib) due to 2 previous errors; 1 warning emitted

And I have found that the #4 have fixed this question which has been closed, so I suggest to reopen and merge the #4 . (If needed, I can send a pr again.)

I encounter this issue when I try to compile the rustsbi and I'm really new to this project, if there is any question in my operations, please point it out to me.

[guttatus]

Thank you for your issue, I have reopened #4.