Error in ramp library

[johhonn]

When using pumpkin 2.01 in a project with rustc 1.39.0-nightly (521d78407 2019-08-25) and the following dependencies:

[dependencies] pumpkin = "2.0.1" modinverse = "0.1.1" num-integer = "0.1.41" ramp = "0.5.2"

It downloads ramp v0.3.13 and gets the following errors:

Compiling ramp v0.3.13 error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:43:5 | 43 | use alloc::raw_vec::RawVec; | ^^^^^^^^^^^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:152:36 | 152 | fn with_raw_vec<F: FnOnce(&mut RawVec<Limb>)>(&mut self, f: F) { | ^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:155:27 | 155 | let mut vec = RawVec::from_raw_parts(self.ptr.as_mut(), old_cap); | ^^^^^^^^^^^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:939:22 | 939 | drop(RawVec::from_raw_parts(self.ptr.as_mut(), | ^^^^^^^^^^^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:163:40 | 163 | self.ptr = Unique::new(vec.ptr()).unwrap(); | ^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0599]: no method named cap found for type alloc::raw_vec::RawVec<ll::limb::Limb> in the current scope --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:164:31 | 164 | let new_cap = vec.cap(); | ^^^ private field, not a method

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:186:36 | 186 | ret.with_raw_vec(|v| v.reserve_exact(0, cap as usize)) | ^^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:275:15 | 275 | v.shrink_to_fit(size); | ^^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail --> /home/john/.cargo/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.13/src/int.rs:760:19 | 760 | v.reserve_exact(old_cap, cap as usize - old_cap) | ^^^^^^^^^^^^^ | = help: add #![feature(raw_vec_internals)] to the crate attributes to enable

error: aborting due to 9 previous errors

This seems odd as ramp = "0.5" is the dependency in this repo. Maybe this is an issue with the cargo package manager>