3 Finds items imported through `alloc` when available through `core`.
7 Crates which have `no_std` compatibility and may optionally require alloc may wish to ensure types are
8 imported from core to ensure disabling `alloc` does not cause the crate to fail to compile. This lint
9 is also useful for crates migrating to become `no_std` compatible.
13 use alloc::slice::from_ref;
17 use core::slice::from_ref;