warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:3:1 | LL | #![deny(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: `#[warn(unknown_lints)]` on by default warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:7:1 | LL | #![allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:19:5 | LL | #[allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:19:5 | LL | #[allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:31:5 | LL | #[warn(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:31:5 | LL | #[warn(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:3:1 | LL | #![deny(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:7:1 | LL | #![allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:19:5 | LL | #[allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:19:5 | LL | #[allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:31:5 | LL | #[warn(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:31:5 | LL | #[warn(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0004]: non-exhaustive patterns: `Foo::C` not covered --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:25:11 | LL | match Foo::A { | ^^^^^^ pattern `Foo::C` not covered | note: `Foo` defined here --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:13:10 | LL | enum Foo { | ^^^ ... LL | C, | - not covered = note: the matched value is of type `Foo` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ Foo::B => {}, LL + Foo::C => todo!() | warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:3:1 | LL | #![deny(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:7:1 | LL | #![allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:19:5 | LL | #[allow(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` warning: unknown lint: `non_exhaustive_omitted_patterns` --> $DIR/feature-gate-non_exhaustive_omitted_patterns_lint.rs:31:5 | LL | #[warn(non_exhaustive_omitted_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: the `non_exhaustive_omitted_patterns` lint is unstable = note: see issue #89554 for more information = help: add `#![feature(non_exhaustive_omitted_patterns_lint)]` to the crate attributes to enable = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: aborting due to previous error; 16 warnings emitted For more information about this error, try `rustc --explain E0004`.