zeroize: breaking change for bounds #878
Description
Consider the following code
use zeroize::{Zeroize, ZeroizeOnDrop};
#[derive(zeroize::ZeroizeOnDrop, zeroize::Zeroize)]
pub struct Test<A: Marker> {
#[zeroize(skip)]
field: Option<A>,
}
pub trait Secret: ZeroizeOnDrop + Zeroize{}
impl<A:Marker> Secret for Test<A>{
}
pub trait Marker {}This code used to compile with:
[dependencies]
zeroize = { version = "1", features = ["derive"] }
zeroize_derive = { version = "=1.3.3" }But now by updating the derive
[dependencies]
zeroize = { version = "1", features = ["derive"] }
zeroize_derive = { version = "=1.4.0" }I get
error[E0277]: the trait bound `Test<A>: Zeroize` is not satisfied
--> src/lib.rs:11:16
|
11 | impl<A:Marker> Secret for Test<A>{
| ^^^^^^ the trait `Zeroize` is not implemented for `Test<A>`
|
note: required by a bound in `Secret`
--> src/lib.rs:9:35
|
9 | pub trait Secret: ZeroizeOnDrop + Zeroize{}
| ^^^^^^^ required by this bound in `Secret`
help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
|
11 | impl<A:Marker> Secret for Test<A> where Test<A>: Zeroize{
| ++++++++++++++++++++++
For more information about this error, try `rustc --explain E0277`.
error: could not compile `test_zeroize` due to previous errorWhich is due to #858
I bisected and downgrading derive to 81536ee works perfectly with my example, upgrading to syn v2 broke something