the trait bound &malachite_nz::integer::Integer: From<&BigInt> is not satisfied

[edreamleo]

Summary

I'm a complete newbie to Rust, but there may be a quirp in RustPython's requirements:

With this Cargo.toml:

[package]
name = "ekr-orange"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
rustpython = "0.3.0"

And this main.rs:

fn main() {
    println!("main.rs: ekr-orange");
}

I get the following errors:

Errors

error[E0277]: the trait bound `&malachite_nz::integer::Integer: From<&BigInt>` is not satisfied
 --> C:\Users\Dev\.cargo\registry\src\index.crates.io-6f17d22bba15001f\rustpython-common-0.3.0\src\int.rs:8:58
  |
8 |     let val: f64 = Rational::from_integers_ref(numerator.into(), denominator.into())
  |                                                          ^^^^ the trait `From<&BigInt>` is not implemented for `&malachite_nz::integer::Integer`
  |
  = help: the following other types implement trait `From<T>`:
            <malachite_nz::integer::Integer as From<bool>>
            <malachite_nz::integer::Integer as From<isize>>
            <malachite_nz::integer::Integer as From<i8>>
            <malachite_nz::integer::Integer as From<i16>>
            <malachite_nz::integer::Integer as From<i32>>
            <malachite_nz::integer::Integer as From<i64>>
            <malachite_nz::integer::Integer as From<i128>>
            <malachite_nz::integer::Integer as From<usize>>
          and 7 others
  = note: required for `&BigInt` to implement `Into<&malachite_nz::integer::Integer>`

error[E0277]: the trait bound `&malachite_nz::integer::Integer: From<&BigInt>` is not satisfied
 --> C:\Users\Dev\.cargo\registry\src\index.crates.io-6f17d22bba15001f\rustpython-common-0.3.0\src\int.rs:8:78
  |
8 |     let val: f64 = Rational::from_integers_ref(numerator.into(), denominator.into())
  |                                                                              ^^^^ the trait `From<&BigInt>` is not implemented for `&malachite_nz::integer::Integer`
  |
  = help: the following other types implement trait `From<T>`:
            <malachite_nz::integer::Integer as From<bool>>
            <malachite_nz::integer::Integer as From<isize>>
            <malachite_nz::integer::Integer as From<i8>>
            <malachite_nz::integer::Integer as From<i16>>
            <malachite_nz::integer::Integer as From<i32>>
            <malachite_nz::integer::Integer as From<i64>>
            <malachite_nz::integer::Integer as From<i128>>
            <malachite_nz::integer::Integer as From<usize>>
          and 7 others
  = note: required for `&BigInt` to implement `Into<&malachite_nz::integer::Integer>`

error[E0277]: the trait bound `BigUint: From<malachite_nz::natural::Natural>` is not satisfied
  --> C:\Users\Dev\.cargo\registry\src\index.crates.io-6f17d22bba15001f\rustpython-common-0.3.0\src\int.rs:27:46
   |
27 |             BigInt::from_biguint(sign, numer.into()),
   |                                              ^^^^ the trait `From<malachite_nz::natural::Natural>` is not implemented for `BigUint`
   |
   = help: the following other types implement trait `From<T>`:
             <BigUint as From<usize>>
             <BigUint as From<u8>>
             <BigUint as From<u16>>
             <BigUint as From<u32>>
             <BigUint as From<u64>>
             <BigUint as From<u128>>
             <BigUint as From<malachite_nz::natural::Natural>>
   = note: required for `malachite_nz::natural::Natural` to implement `Into<BigUint>`

error[E0277]: the trait bound `BigUint: From<malachite_nz::natural::Natural>` is not satisfied
  --> C:\Users\Dev\.cargo\registry\src\index.crates.io-6f17d22bba15001f\rustpython-common-0.3.0\src\int.rs:28:27
   |
28 |             BigUint::from(denom).into(),
   |             ------------- ^^^^^ the trait `From<malachite_nz::natural::Natural>` is not implemented for `BigUint`
   |             |
   |             required by a bound introduced by this call
   |
   = help: the following other types implement trait `From<T>`:
             <BigUint as From<usize>>
             <BigUint as From<u8>>
             <BigUint as From<u16>>
             <BigUint as From<u32>>
             <BigUint as From<u64>>
             <BigUint as From<u128>>
             <BigUint as From<malachite_nz::natural::Natural>>

For more information about this error, try `rustc --explain E0277`.
error: could not compile `rustpython-common` (lib) due to 4 previous errors
warning: build failed, waiting for other jobs to finish...

However, all is well if I replace:

rustpython = "0.3.0"

with:

rustpython = { git = "https://github.com/RustPython/RustPython.git" }

Environment

Windows 11
rustc 1.73.0 (cc66ad468 2023-10-03)
rustc 1.74.0 (79e9716c9 2023-11-13)

Summary

This behavior may be expected, but this newbie was surprised.

[AtomicGamer9523]

Same error here!

OS:

rustc 1.76.0-nightly (4cb3beec8 2023-11-18)
binary: rustc
commit-hash: 4cb3beec86178baff601529389306a4949b077ce
commit-date: 2023-11-18
host: x86_64-pc-windows-msvc
release: 1.76.0-nightly
LLVM version: 17.0.5

and also:

rustc 1.76.0-nightly (eeff92ad3 2023-12-13)
binary: rustc
commit-hash: eeff92ad32c2627876112ccfe812e19d38494087
commit-date: 2023-12-13
host: x86_64-pc-windows-msvc
release: 1.76.0-nightly
LLVM version: 17.0.5

[youknowone]

I am sorry for late response. And thank you for reporrting. I yanked malachite-bigint 0.1.1. It must be fixed.

[edreamleo]

@youknowone Thanks for looking into this!