error: expected a version literal
  --> $DIR/syntax.rs:11:15
   |
LL | #[cfg(version(42))]
   |               ^^

error: expected a version literal
  --> $DIR/syntax.rs:15:15
   |
LL | #[cfg(version(1.20))]
   |               ^^^^

error: expected a version literal
  --> $DIR/syntax.rs:19:15
   |
LL | #[cfg(version(false))]
   |               ^^^^^

error: expected single version literal
  --> $DIR/syntax.rs:23:14
   |
LL | #[cfg(version("1.43", "1.44", "1.45"))]
   |              ^^^^^^^^^^^^^^^^^^^^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:51:15
   |
LL | #[cfg(version("foo"))]
   |               ^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:55:15
   |
LL | #[cfg(version("1.20.0-stable"))]
   |               ^^^^^^^^^^^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:78:15
   |
LL | #[cfg(version("1"))]
   |               ^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:82:15
   |
LL | #[cfg(version("0"))]
   |               ^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:86:15
   |
LL | #[cfg(version(".7"))]
   |               ^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:95:15
   |
LL | #[cfg(version("-1"))]
   |               ^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:101:15
   |
LL | #[cfg(version("65536"))]
   |               ^^^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:105:15
   |
LL | #[cfg(version("1.65536.0"))]
   |               ^^^^^^^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:109:15
   |
LL | #[cfg(version("1.0.65536"))]
   |               ^^^^^^^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:113:15
   |
LL | #[cfg(version("65536.0.65536"))]
   |               ^^^^^^^^^^^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:125:26
   |
LL |     assert!(cfg!(version("foo")));
   |                          ^^^^^

warning: unknown version literal format, assuming it refers to a future version
  --> $DIR/syntax.rs:127:26
   |
LL |     assert!(cfg!(version("1.20.0-stable")));
   |                          ^^^^^^^^^^^^^^^

warning: unexpected `cfg` condition name: `version`
  --> $DIR/syntax.rs:30:7
   |
LL | #[cfg(version = "1.43")]
   |       ^^^^^^^^^^^^^^^^
   |
   = help: to expect this configuration use `--check-cfg=cfg(version, values("1.43"))`
   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration
   = note: `#[warn(unexpected_cfgs)]` on by default
help: there is a similar config predicate: `version("..")`
   |
LL - #[cfg(version = "1.43")]
LL + #[cfg(version("1.43"))]
   |

warning: unexpected `cfg` condition name: `version`
  --> $DIR/syntax.rs:130:18
   |
LL |     assert!(cfg!(version = "1.43"));
   |                  ^^^^^^^^^^^^^^^^
   |
   = help: to expect this configuration use `--check-cfg=cfg(version, values("1.43"))`
   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration
help: there is a similar config predicate: `version("..")`
   |
LL -     assert!(cfg!(version = "1.43"));
LL +     assert!(cfg!(version("1.43")));
   |

error[E0425]: cannot find function `key_value_form` in this scope
  --> $DIR/syntax.rs:139:5
   |
LL |     key_value_form();
   |     ^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:32:4
   |
LL | #[cfg(version = "1.43")]
   |       ---------------- the item is gated behind the `1.43` feature
LL |
LL | fn key_value_form() {}
   |    ^^^^^^^^^^^^^^

error[E0425]: cannot find function `not_numbers_or_periods` in this scope
  --> $DIR/syntax.rs:143:5
   |
LL |     not_numbers_or_periods();
   |     ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:53:4
   |
LL | #[cfg(version("foo"))]
   |              ------- the item is gated here
LL |
LL | fn not_numbers_or_periods() {}
   |    ^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `complex_semver_with_metadata` in this scope
  --> $DIR/syntax.rs:144:5
   |
LL |     complex_semver_with_metadata();
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:57:4
   |
LL | #[cfg(version("1.20.0-stable"))]
   |              ----------------- the item is gated here
LL |
LL | fn complex_semver_with_metadata() {}
   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `invalid_major_only` in this scope
  --> $DIR/syntax.rs:145:5
   |
LL |     invalid_major_only();
   |     ^^^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:80:4
   |
LL | #[cfg(version("1"))]
   |              ----- the item is gated here
LL |
LL | fn invalid_major_only() {}
   |    ^^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `invalid_major_only_zero` in this scope
  --> $DIR/syntax.rs:146:5
   |
LL |     invalid_major_only_zero();
   |     ^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:84:4
   |
LL | #[cfg(version("0"))]
   |              ----- the item is gated here
LL |
LL | fn invalid_major_only_zero() {}
   |    ^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `invalid_major_only_negative` in this scope
  --> $DIR/syntax.rs:147:5
   |
LL |     invalid_major_only_negative();
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:97:4
   |
LL | #[cfg(version("-1"))]
   |              ------ the item is gated here
LL |
LL | fn invalid_major_only_negative() {}
   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `exceed_u16_major` in this scope
  --> $DIR/syntax.rs:148:5
   |
LL |     exceed_u16_major();
   |     ^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:103:4
   |
LL | #[cfg(version("65536"))]
   |              --------- the item is gated here
LL |
LL | fn exceed_u16_major() {}
   |    ^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `exceed_u16_minor` in this scope
  --> $DIR/syntax.rs:149:5
   |
LL |     exceed_u16_minor();
   |     ^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:107:4
   |
LL | #[cfg(version("1.65536.0"))]
   |              ------------- the item is gated here
LL |
LL | fn exceed_u16_minor() {}
   |    ^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `exceed_u16_patch` in this scope
  --> $DIR/syntax.rs:150:5
   |
LL |     exceed_u16_patch();
   |     ^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:111:4
   |
LL | #[cfg(version("1.0.65536"))]
   |              ------------- the item is gated here
LL |
LL | fn exceed_u16_patch() {}
   |    ^^^^^^^^^^^^^^^^

error[E0425]: cannot find function `exceed_u16_mixed` in this scope
  --> $DIR/syntax.rs:151:5
   |
LL |     exceed_u16_mixed();
   |     ^^^^^^^^^^^^^^^^ not found in this scope
   |
note: found an item that was configured out
  --> $DIR/syntax.rs:115:4
   |
LL | #[cfg(version("65536.0.65536"))]
   |              ----------------- the item is gated here
LL |
LL | fn exceed_u16_mixed() {}
   |    ^^^^^^^^^^^^^^^^

error: aborting due to 14 previous errors; 14 warnings emitted

For more information about this error, try `rustc --explain E0425`.