error: Cannot derive FromPyObject for empty structs and variants.
 --> $DIR/invalid_frompy_derive.rs:4:11
  |
4 | struct Foo();
  |           ^^

error: Cannot derive FromPyObject for empty structs and variants.
 --> $DIR/invalid_frompy_derive.rs:7:13
  |
7 | struct Foo2 {}
  |             ^^

error: Cannot derive FromPyObject for empty enum.
  --> $DIR/invalid_frompy_derive.rs:10:6
   |
10 | enum EmptyEnum {}
   |      ^^^^^^^^^

error: Cannot derive FromPyObject for empty structs and variants.
  --> $DIR/invalid_frompy_derive.rs:14:15
   |
14 |     EmptyTuple(),
   |               ^^

error: Cannot derive FromPyObject for empty structs and variants.
  --> $DIR/invalid_frompy_derive.rs:20:17
   |
20 |     EmptyStruct {},
   |                 ^^

error: Cannot derive FromPyObject for empty structs and variants.
  --> $DIR/invalid_frompy_derive.rs:26:27
   |
26 | struct EmptyTransparentTup();
   |                           ^^

error: Cannot derive FromPyObject for empty structs and variants.
  --> $DIR/invalid_frompy_derive.rs:30:31
   |
30 | struct EmptyTransparentStruct {}
   |                               ^^

error: Cannot derive FromPyObject for empty structs and variants.
  --> $DIR/invalid_frompy_derive.rs:35:15
   |
35 |     EmptyTuple(),
   |               ^^

error: Cannot derive FromPyObject for empty structs and variants.
  --> $DIR/invalid_frompy_derive.rs:42:17
   |
42 |     EmptyStruct {},
   |                 ^^

error: Transparent structs and variants can only have 1 field
  --> $DIR/invalid_frompy_derive.rs:48:35
   |
48 | struct TransparentTupTooManyFields(String, String);
   |                                   ^^^^^^^^^^^^^^^^

error: Transparent structs and variants can only have 1 field
  --> $DIR/invalid_frompy_derive.rs:52:39
   |
52 |   struct TransparentStructTooManyFields {
   |  _______________________________________^
53 | |     foo: String,
54 | |     bar: String,
55 | | }
   | |_^

error: Transparent structs and variants can only have 1 field
  --> $DIR/invalid_frompy_derive.rs:60:15
   |
60 |     EmptyTuple(String, String),
   |               ^^^^^^^^^^^^^^^^

error: Transparent structs and variants can only have 1 field
  --> $DIR/invalid_frompy_derive.rs:67:17
   |
67 |       EmptyStruct {
   |  _________________^
68 | |         foo: String,
69 | |         bar: String,
70 | |     },
   | |_____^

error: Expected `attribute` or `item`.
  --> $DIR/invalid_frompy_derive.rs:76:12
   |
76 |     #[pyo3(attr)]
   |            ^^^^

error: Expected a single string literal argument.
  --> $DIR/invalid_frompy_derive.rs:82:22
   |
82 |     #[pyo3(attribute(1))]
   |                      ^

error: Expected a single string literal argument.
  --> $DIR/invalid_frompy_derive.rs:88:12
   |
88 |     #[pyo3(attribute("a", "b"))]
   |            ^^^^^^^^^^^^^^^^^^^

error: Attribute name cannot be empty.
  --> $DIR/invalid_frompy_derive.rs:94:22
   |
94 |     #[pyo3(attribute(""))]
   |                      ^^

error: Expected a single string literal argument.
   --> $DIR/invalid_frompy_derive.rs:100:12
    |
100 |     #[pyo3(attribute())]
    |            ^^^^^^^^^^^

error: Expected a single literal argument.
   --> $DIR/invalid_frompy_derive.rs:106:17
    |
106 |     #[pyo3(item("a", "b"))]
    |                 ^^^^^^^^

error: Expected a single literal argument.
   --> $DIR/invalid_frompy_derive.rs:112:12
    |
112 |     #[pyo3(item())]
    |            ^^^^^^

error: Only one of `item`, `attribute` can be provided, possibly with an additional argument: `item("key")` or `attribute("name").
   --> $DIR/invalid_frompy_derive.rs:118:12
    |
118 |     #[pyo3(item, attribute)]
    |            ^^^^^^^^^^^^^^^

error: Unrecognized `pyo3` container attribute
   --> $DIR/invalid_frompy_derive.rs:123:8
    |
123 | #[pyo3(unknown = "should not work")]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: Annotating error messages for structs is not supported. Remove the annotation attribute.
   --> $DIR/invalid_frompy_derive.rs:129:1
    |
129 | #[pyo3(annotation = "should not work")]
    | ^

error: Expected string literal.
   --> $DIR/invalid_frompy_derive.rs:136:25
    |
136 |     #[pyo3(annotation = 1)]
    |                         ^

error: FromPyObject can be derived with at most one lifetime parameter.
   --> $DIR/invalid_frompy_derive.rs:141:22
    |
141 | enum TooManyLifetimes<'a, 'b> {
    |                      ^^^^^^^^

error: #[derive(FromPyObject)] is not supported for unions.
   --> $DIR/invalid_frompy_derive.rs:147:1
    |
147 | / union Union {
148 | |     a: usize,
149 | | }
    | |_^

error: Cannot derive FromPyObject for empty structs and variants.
   --> $DIR/invalid_frompy_derive.rs:151:10
    |
151 | #[derive(FromPyObject)]
    |          ^^^^^^^^^^^^
    |
    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)