crates/zerocopy-derive/tests/ui-msrv/enum.stderr

error: unrecognized representation hint
  --> tests/ui-msrv/enum.rs:19:8
   |
19 | #[repr("foo")]
   |        ^^^^^

error: unrecognized representation hint
  --> tests/ui-msrv/enum.rs:25:8
   |
25 | #[repr(foo)]
   |        ^^^

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
  --> tests/ui-msrv/enum.rs:30:10
   |
30 | #[derive(FromBytes)]
   |          ^^^^^^^^^
   |
   = note: this error originates in the derive macro `FromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: this conflicts with another representation hint
  --> tests/ui-msrv/enum.rs:37:12
   |
37 | #[repr(u8, u16)]
   |            ^^^

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
  --> tests/ui-msrv/enum.rs:42:10
   |
42 | #[derive(FromBytes)]
   |          ^^^^^^^^^
   |
   = note: this error originates in the derive macro `FromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
  --> tests/ui-msrv/enum.rs:69:10
   |
69 | #[derive(TryFromBytes)]
   |          ^^^^^^^^^^^^
   |
   = note: this error originates in the derive macro `TryFromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
  --> tests/ui-msrv/enum.rs:74:10
   |
74 | #[derive(TryFromBytes)]
   |          ^^^^^^^^^^^^
   |
   = note: this error originates in the derive macro `TryFromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
  --> tests/ui-msrv/enum.rs:92:10
   |
92 | #[derive(FromZeros)]
   |          ^^^^^^^^^
   |
   = note: this error originates in the derive macro `FromZeros` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
  --> tests/ui-msrv/enum.rs:97:10
   |
97 | #[derive(FromZeros)]
   |          ^^^^^^^^^
   |
   = note: this error originates in the derive macro `FromZeros` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
   --> tests/ui-msrv/enum.rs:103:10
    |
103 | #[derive(FromZeros)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `FromZeros` (in Nightly builds, run with -Z macro-backtrace for more info)

error: FromZeros only supported on enums with a variant that has a discriminant of `0`
   --> tests/ui-msrv/enum.rs:110:1
    |
110 | / #[repr(u8)]
111 | | enum FromZeros4 {
112 | |     A = 1,
113 | |     B = 2,
114 | | }
    | |_^

error: FromZeros only supported on enums with a variant that has a discriminant of `0`
help: This enum has discriminants which are not literal integers. One of those may define or imply which variant has a discriminant of zero. Use a literal integer to define or imply the variant with a discriminant of zero.
   --> tests/ui-msrv/enum.rs:119:1
    |
119 | / #[repr(i8)]
120 | | enum FromZeros5 {
121 | |     A = NEGATIVE_ONE,
122 | |     B,
123 | | }
    | |_^

error: FromZeros only supported on enums with a variant that has a discriminant of `0`
   --> tests/ui-msrv/enum.rs:134:1
    |
134 | / #[repr(u8)]
135 | | enum FromZeros7 {
136 | |     A = 1,
137 | |     B(NotFromZeros),
138 | | }
    | |_^

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
   --> tests/ui-msrv/enum.rs:144:10
    |
144 | #[derive(FromBytes)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `FromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:150:8
    |
150 | #[repr(C)]
    |        ^

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:156:8
    |
156 | #[repr(usize)]
    |        ^^^^^

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:162:8
    |
162 | #[repr(isize)]
    |        ^^^^^

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:168:8
    |
168 | #[repr(u32)]
    |        ^^^

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:174:8
    |
174 | #[repr(i32)]
    |        ^^^

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:180:8
    |
180 | #[repr(u64)]
    |        ^^^

error: `FromBytes` only supported on enums with `#[repr(...)]` attributes `u8`, `i8`, `u16`, or `i16`
   --> tests/ui-msrv/enum.rs:186:8
    |
186 | #[repr(i64)]
    |        ^^^

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:456:10
    |
456 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:462:10
    |
462 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:468:10
    |
468 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:474:10
    |
474 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:480:10
    |
480 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:486:10
    |
486 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:492:10
    |
492 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:498:10
    |
498 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(u8)] or #[repr(i8)] attribute in order to guarantee this type's alignment
   --> tests/ui-msrv/enum.rs:504:10
    |
504 | #[derive(Unaligned)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `Unaligned` (in Nightly builds, run with -Z macro-backtrace for more info)

error: cannot derive `Unaligned` on type with alignment greater than 1
   --> tests/ui-msrv/enum.rs:511:12
    |
511 | #[repr(u8, align(2))]
    |            ^^^^^

error: cannot derive `Unaligned` on type with alignment greater than 1
   --> tests/ui-msrv/enum.rs:517:12
    |
517 | #[repr(i8, align(2))]
    |            ^^^^^

error: this conflicts with another representation hint
   --> tests/ui-msrv/enum.rs:523:18
    |
523 | #[repr(align(1), align(2))]
    |                  ^^^^^

error: this conflicts with another representation hint
   --> tests/ui-msrv/enum.rs:529:18
    |
529 | #[repr(align(2), align(4))]
    |                  ^^^^^

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
   --> tests/ui-msrv/enum.rs:562:10
    |
562 | #[derive(IntoBytes)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `IntoBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: must have #[repr(C)] or #[repr(Int)] attribute in order to guarantee this type's memory layout
   --> tests/ui-msrv/enum.rs:568:10
    |
568 | #[derive(IntoBytes)]
    |          ^^^^^^^^^
    |
    = note: this error originates in the derive macro `IntoBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: generic parameters may not be used in const operations
   --> tests/ui-msrv/enum.rs:576:7
    |
576 |     A(T),
    |       ^ cannot perform const operation using `T`
    |
    = note: type parameters may not be used in const expressions

error[E0658]: custom discriminant values are not allowed in enums with tuple or struct variants
   --> tests/ui-msrv/enum.rs:136:9
    |
136 |     A = 1,
    |         ^ disallowed custom discriminant
137 |     B(NotFromZeros),
    |     --------------- tuple variant defined here
    |
    = note: see issue #60553 <https://github.com/rust-lang/rust/issues/60553> for more information

error[E0565]: meta item in `repr` must be an identifier
  --> tests/ui-msrv/enum.rs:19:8
   |
19 | #[repr("foo")]
   |        ^^^^^

error[E0552]: unrecognized representation hint
  --> tests/ui-msrv/enum.rs:25:8
   |
25 | #[repr(foo)]
   |        ^^^

error[E0566]: conflicting representation hints
  --> tests/ui-msrv/enum.rs:37:8
   |
37 | #[repr(u8, u16)]
   |        ^^  ^^^
   |
   = note: `#[deny(conflicting_repr_hints)]` on by default
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>

error[E0277]: the trait bound `UnsafeCell<()>: Immutable` is not satisfied
  --> tests/ui-msrv/enum.rs:51:10
   |
51 | #[derive(Immutable)]
   |          ^^^^^^^^^ the trait `Immutable` is not implemented for `UnsafeCell<()>`
   |
   = help: see issue #48214
   = note: this error originates in the derive macro `Immutable` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `UnsafeCell<u8>: Immutable` is not satisfied
  --> tests/ui-msrv/enum.rs:59:10
   |
59 | #[derive(Immutable)]
   |          ^^^^^^^^^ the trait `Immutable` is not implemented for `UnsafeCell<u8>`
   |
   = help: see issue #48214
   = note: this error originates in the derive macro `Immutable` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `NotTryFromBytes: TryFromBytes` is not satisfied
  --> tests/ui-msrv/enum.rs:82:10
   |
82 | #[derive(TryFromBytes)]
   |          ^^^^^^^^^^^^ the trait `TryFromBytes` is not implemented for `NotTryFromBytes`
   |
   = help: see issue #48214
   = note: this error originates in the derive macro `TryFromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `NotFromZeros: TryFromBytes` is not satisfied
   --> tests/ui-msrv/enum.rs:127:10
    |
127 | #[derive(FromZeros)]
    |          ^^^^^^^^^ the trait `TryFromBytes` is not implemented for `NotFromZeros`
    |
    = help: see issue #48214
    = note: this error originates in the derive macro `FromZeros` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `NotFromZeros: FromZeros` is not satisfied
   --> tests/ui-msrv/enum.rs:127:10
    |
127 | #[derive(FromZeros)]
    |          ^^^^^^^^^ the trait `FromZeros` is not implemented for `NotFromZeros`
    |
    = help: see issue #48214
    = note: this error originates in the derive macro `FromZeros` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `bool: FromBytes` is not satisfied
   --> tests/ui-msrv/enum.rs:191:10
    |
191 | #[derive(FromBytes)]
    |          ^^^^^^^^^ the trait `FromBytes` is not implemented for `bool`
    |
    = help: see issue #48214
    = note: this error originates in the derive macro `FromBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `(): PaddingFree<IntoBytes1, true>` is not satisfied
   --> tests/ui-msrv/enum.rs:538:10
    |
538 | #[derive(IntoBytes)]
    |          ^^^^^^^^^ the trait `PaddingFree<IntoBytes1, true>` is not implemented for `()`
    |
    = help: the following implementations were found:
              <() as PaddingFree<T, false>>
    = help: see issue #48214
    = note: this error originates in the derive macro `IntoBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `(): PaddingFree<IntoBytes2, true>` is not satisfied
   --> tests/ui-msrv/enum.rs:549:10
    |
549 | #[derive(IntoBytes)]
    |          ^^^^^^^^^ the trait `PaddingFree<IntoBytes2, true>` is not implemented for `()`
    |
    = help: the following implementations were found:
              <() as PaddingFree<T, false>>
    = help: see issue #48214
    = note: this error originates in the derive macro `IntoBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `(): PaddingFree<IntoBytes3, true>` is not satisfied
   --> tests/ui-msrv/enum.rs:555:10
    |
555 | #[derive(IntoBytes)]
    |          ^^^^^^^^^ the trait `PaddingFree<IntoBytes3, true>` is not implemented for `()`
    |
    = help: the following implementations were found:
              <() as PaddingFree<T, false>>
    = help: see issue #48214
    = note: this error originates in the derive macro `IntoBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: generic `Self` types are currently not permitted in anonymous constants
   --> tests/ui-msrv/enum.rs:573:10
    |
573 | #[derive(IntoBytes)]
    |          ^^^^^^^^^
    |
note: not a concrete type
   --> tests/ui-msrv/enum.rs:573:10
    |
573 | #[derive(IntoBytes)]
    |          ^^^^^^^^^
    = note: this error originates in the derive macro `IntoBytes` (in Nightly builds, run with -Z macro-backtrace for more info)