std can't be used with glam feature disabled (and small build-break with glam disabled)

[kettle11]

Right now if the std feature is enabled then glam gets enabled due to this line in the cargo.toml:

[features]
std = ["glam/std"]

I'm not sure how best to fix this. If this feature were stable it could be used: https://doc.rust-lang.org/cargo/reference/unstable.html#weak-dependency-features (rust-lang/cargo#8832)

---

Additionally for kolor to build with glam disabled this line needs to be changed to prepend super:

kolor/kolor/src/details/math.rs

Line 116 in a66d17c

impl Cuberoot for Vec3 {

Like this:

impl super::Cuberoot for Vec3 {

[kabergstrom]

Oh, tricky! Looks like the feature you link is being stabilized. Let's wait for that :)