error: cannot find macro asm in this scope

[qxzhou1010]

Hi， I am using cargo build --release,but the following errors occurs:

error: cannot find macro `asm` in this scope
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/ll/limb.rs:467:17
    |
467 |                 asm!(
    |                 ^^^
    |
    = note: consider importing this macro:
            std::arch::asm

error: cannot find macro `asm` in this scope
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/ll/limb.rs:557:17
    |
557 |                 asm!(
    |                 ^^^
    |
    = note: consider importing this macro:
            std::arch::asm

error: cannot find macro `asm` in this scope
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/ll/limb.rs:606:17
    |
606 |                 asm!(
    |                 ^^^
    |
    = note: consider importing this macro:
            std::arch::asm

error: cannot find macro `asm` in this scope
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/ll/limb.rs:661:17
    |
661 |                 asm!(
    |                 ^^^
    |
    = note: consider importing this macro:
            std::arch::asm

error[E0603]: module `raw_vec` is private
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/int.rs:37:12
    |
37  | use alloc::raw_vec::RawVec;
    |            ^^^^^^^ private module
    |
note: the module `raw_vec` is defined here

error[E0282]: type annotations needed
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/int.rs:182:31
    |
182 |             ret.with_raw_vec(|v| v.reserve_exact(0, cap as usize))
    |                               ^ consider giving this closure parameter a type
    |
    = note: type must be known at this point

error[E0282]: type annotations needed
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/int.rs:275:28
    |
275 |         self.with_raw_vec(|v| {
    |                            ^ consider giving this closure parameter a type
    |
    = note: type must be known at this point

error[E0282]: type annotations needed
   --> /Users/qixian/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.6.0/src/int.rs:769:32
    |
769 |             self.with_raw_vec(|v| v.reserve_exact(old_cap, cap as usize - old_cap))
    |                                ^ consider giving this closure parameter a type
    |
    = note: type must be known at this point

Some errors have detailed explanations: E0282, E0603.
For more information about an error, try `rustc --explain E0282`.

Please tell me how to fix these errors?

[vks]

Which Rust version are you using?

I think ramp requires nightly, and the version used here is outdated and no longer works on current Rust versions. I can think of three possible fixes:

1. Use an older Rust nightly where ramp 0.6 still compiles.
2. Update discrete-log to use the most recent ramp version, which hopefully works on current Rust versions.
3. Make ramp optional and compile discrete-log without it.

[qxzhou1010]

Thank for your reply. I am using therustc 1.62.0-nightly (de1bc0008 2022-04-21). I found that the most recent ramp version is still 0.6.0. I have removed all the code related ramp and complied successfully.
But how to run this code? I follow the README to run this line :
perf stat -B target/release/discrete-log num_bigint. However, a error occur: zsh: command not found: perf
.
And I try to use cargo run gmp(num_bigint/rug/ibig), but only the cargo run num_bigint successfully, other command all failed and output the following contetn:

arg = "rug"
thread 'main' panicked at 'unknown argument!', src/main.rs:404:14
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace