Compilation fails on nightly

[Indy2222]

error: to use a constant of type `TypeId` in a pattern, `TypeId` must be annotated with `#[derive(PartialEq, Eq)]`
  --> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/value-bag-1.0.0-alpha.9/src/internal/cast/primitive.rs:43:33
   |
43 |                                   $const_ident => |v| Some(Internal::from(unsafe { &*(*v as *const Self as *const $ty) })),
   |                                   ^^^^^^^^^^^^
...
71 | /         to_internal![
72 | |             usize: (USIZE, OPTION_USIZE),
73 | |             u8: (U8, OPTION_U8),
74 | |             u16: (U16, OPTION_U16),
...  |
96 | |             String: (STRING, OPTION_STRING),
97 | |         ];
   | |_________- in this macro invocation
   |
   = note: the traits must be derived, manual `impl`s are not sufficient
   = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
   = note: this error originates in the macro `to_internal` (in Nightly builds, run with -Z macro-backtrace for more info)

error: to use a constant of type `TypeId` in a pattern, `TypeId` must be annotated with `#[derive(PartialEq, Eq)]`
  --> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/value-bag-1.0.0-alpha.9/src/internal/cast/primitive.rs:46:33
   |
46 |                                   $option_ident => |v| Some({
   |                                   ^^^^^^^^^^^^^
...
71 | /         to_internal![
72 | |             usize: (USIZE, OPTION_USIZE),
73 | |             u8: (U8, OPTION_U8),
74 | |             u16: (U16, OPTION_U16),
...  |
96 | |             String: (STRING, OPTION_STRING),
97 | |         ];
   | |_________- in this macro invocation
   |
   = note: the traits must be derived, manual `impl`s are not sufficient
   = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
   = note: this error originates in the macro `to_internal` (in Nightly builds, run with -Z macro-backtrace for more info)

error: to use a constant of type `TypeId` in a pattern, `TypeId` must be annotated with `#[derive(PartialEq, Eq)]`
  --> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/value-bag-1.0.0-alpha.9/src/internal/cast/primitive.rs:55:29
   |
55 |                               STR => |v| Some(Internal::from(unsafe { &**(v as *const &'a Self as *const &'a str) })),
   |                               ^^^
...
71 | /         to_internal![
72 | |             usize: (USIZE, OPTION_USIZE),
73 | |             u8: (U8, OPTION_U8),
74 | |             u16: (U16, OPTION_U16),
...  |
96 | |             String: (STRING, OPTION_STRING),
97 | |         ];
   | |_________- in this macro invocation
   |
   = note: the traits must be derived, manual `impl`s are not sufficient
   = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
   = note: this error originates in the macro `to_internal` (in Nightly builds, run with -Z macro-backtrace for more info)

error: could not compile `value-bag` due to 3 previous errors

I believe this is caused by rust-lang/rust#103291

[KodrAus]

Ah I’ve been waiting for this. It’s fixed on the branch of log that’s about to be released but that’s not scheduled for a few weeks. I think I’ll issue a patch for log that upgrades these packages without the MSRV bump to get everything back to green in the meantime.

[KodrAus]

This should be all sorted in log now. Thanks for calling this out. At some point in the future I’m hoping we’ll get a stable way to check type ids in constants so the optimization this code originally supported can return.