| error[E0700]: hidden type for `impl Copy` captures lifetime that does not appear in bounds |
| --> $DIR/must_outlive_least_region_or_bound.rs:3:35 |
| | |
| LL | fn elided(x: &i32) -> impl Copy { x } |
| | ---- --------- ^ |
| | | | |
| | | opaque type defined here |
| | hidden type `&i32` captures the anonymous lifetime defined here |
| | |
| help: to declare that `impl Copy` captures `'_`, you can add an explicit `'_` lifetime bound |
| | |
| LL | fn elided(x: &i32) -> impl Copy + '_ { x } |
| | ++++ |
| |
| error[E0700]: hidden type for `impl Copy` captures lifetime that does not appear in bounds |
| --> $DIR/must_outlive_least_region_or_bound.rs:6:44 |
| | |
| LL | fn explicit<'a>(x: &'a i32) -> impl Copy { x } |
| | -- --------- ^ |
| | | | |
| | | opaque type defined here |
| | hidden type `&'a i32` captures the lifetime `'a` as defined here |
| | |
| help: to declare that `impl Copy` captures `'a`, you can add an explicit `'a` lifetime bound |
| | |
| LL | fn explicit<'a>(x: &'a i32) -> impl Copy + 'a { x } |
| | ++++ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:9:46 |
| | |
| LL | fn elided2(x: &i32) -> impl Copy + 'static { x } |
| | - ^ returning this value requires that `'1` must outlive `'static` |
| | | |
| | let's call the lifetime of this reference `'1` |
| | |
| help: consider changing `impl Copy + 'static`'s explicit `'static` bound to the lifetime of argument `x` |
| | |
| LL | fn elided2(x: &i32) -> impl Copy + '_ { x } |
| | ~~ |
| help: alternatively, add an explicit `'static` bound to this reference |
| | |
| LL | fn elided2(x: &'static i32) -> impl Copy + 'static { x } |
| | ~~~~~~~~~~~~ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:12:55 |
| | |
| LL | fn explicit2<'a>(x: &'a i32) -> impl Copy + 'static { x } |
| | -- lifetime `'a` defined here ^ returning this value requires that `'a` must outlive `'static` |
| | |
| help: consider changing `impl Copy + 'static`'s explicit `'static` bound to the lifetime of argument `x` |
| | |
| LL | fn explicit2<'a>(x: &'a i32) -> impl Copy + 'a { x } |
| | ~~ |
| help: alternatively, add an explicit `'static` bound to this reference |
| | |
| LL | fn explicit2<'a>(x: &'static i32) -> impl Copy + 'static { x } |
| | ~~~~~~~~~~~~ |
| |
| error[E0621]: explicit lifetime required in the type of `x` |
| --> $DIR/must_outlive_least_region_or_bound.rs:15:41 |
| | |
| LL | fn foo<'a>(x: &i32) -> impl Copy + 'a { x } |
| | ---- ^ lifetime `'a` required |
| | | |
| | help: add explicit lifetime `'a` to the type of `x`: `&'a i32` |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:30:55 |
| | |
| LL | fn elided5(x: &i32) -> (Box<dyn Debug>, impl Debug) { (Box::new(x), x) } |
| | - ^^^^^^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static` |
| | | |
| | let's call the lifetime of this reference `'1` |
| | |
| help: to declare that the trait object captures data from argument `x`, you can add an explicit `'_` lifetime bound |
| | |
| LL | fn elided5(x: &i32) -> (Box<dyn Debug + '_>, impl Debug) { (Box::new(x), x) } |
| | ++++ |
| help: to declare that `impl Debug` captures data from argument `x`, you can add an explicit `'_` lifetime bound |
| | |
| LL | fn elided5(x: &i32) -> (Box<dyn Debug>, impl Debug + '_) { (Box::new(x), x) } |
| | ++++ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:36:69 |
| | |
| LL | fn with_bound<'a>(x: &'a i32) -> impl LifetimeTrait<'a> + 'static { x } |
| | -- lifetime `'a` defined here ^ returning this value requires that `'a` must outlive `'static` |
| | |
| help: consider changing `impl LifetimeTrait<'a> + 'static`'s explicit `'static` bound to the lifetime of argument `x` |
| | |
| LL | fn with_bound<'a>(x: &'a i32) -> impl LifetimeTrait<'a> + 'a { x } |
| | ~~ |
| help: alternatively, add an explicit `'static` bound to this reference |
| | |
| LL | fn with_bound<'a>(x: &'static i32) -> impl LifetimeTrait<'a> + 'static { x } |
| | ~~~~~~~~~~~~ |
| |
| error[E0700]: hidden type for `impl Fn(&'a u32)` captures lifetime that does not appear in bounds |
| --> $DIR/must_outlive_least_region_or_bound.rs:42:5 |
| | |
| LL | fn move_lifetime_into_fn<'a, 'b>(x: &'a u32, y: &'b u32) -> impl Fn(&'a u32) { |
| | -- ---------------- opaque type defined here |
| | | |
| | hidden type `{closure@$DIR/must_outlive_least_region_or_bound.rs:42:5: 42:13}` captures the lifetime `'b` as defined here |
| LL | move |_| println!("{}", y) |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| | |
| help: to declare that `impl Fn(&'a u32)` captures `'b`, you can add an explicit `'b` lifetime bound |
| | |
| LL | fn move_lifetime_into_fn<'a, 'b>(x: &'a u32, y: &'b u32) -> impl Fn(&'a u32) + 'b { |
| | ++++ |
| |
| error[E0310]: the parameter type `T` may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:47:5 |
| | |
| LL | x |
| | ^ |
| | | |
| | the parameter type `T` must be valid for the static lifetime... |
| | ...so that the type `T` will meet its required lifetime bounds |
| | |
| help: consider adding an explicit lifetime bound |
| | |
| LL | fn ty_param_wont_outlive_static<T:Debug + 'static>(x: T) -> impl Debug + 'static { |
| | +++++++++ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:18:41 |
| | |
| LL | fn elided3(x: &i32) -> Box<dyn Debug> { Box::new(x) } |
| | - ^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static` |
| | | |
| | let's call the lifetime of this reference `'1` |
| | |
| help: to declare that the trait object captures data from argument `x`, you can add an explicit `'_` lifetime bound |
| | |
| LL | fn elided3(x: &i32) -> Box<dyn Debug + '_> { Box::new(x) } |
| | ++++ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:21:50 |
| | |
| LL | fn explicit3<'a>(x: &'a i32) -> Box<dyn Debug> { Box::new(x) } |
| | -- lifetime `'a` defined here ^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static` |
| | |
| help: to declare that the trait object captures data from argument `x`, you can add an explicit `'a` lifetime bound |
| | |
| LL | fn explicit3<'a>(x: &'a i32) -> Box<dyn Debug + 'a> { Box::new(x) } |
| | ++++ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:24:51 |
| | |
| LL | fn elided4(x: &i32) -> Box<dyn Debug + 'static> { Box::new(x) } |
| | - ^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static` |
| | | |
| | let's call the lifetime of this reference `'1` |
| | |
| help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `x` |
| | |
| LL | fn elided4(x: &i32) -> Box<dyn Debug + '_> { Box::new(x) } |
| | ~~ |
| help: alternatively, add an explicit `'static` bound to this reference |
| | |
| LL | fn elided4(x: &'static i32) -> Box<dyn Debug + 'static> { Box::new(x) } |
| | ~~~~~~~~~~~~ |
| |
| error: lifetime may not live long enough |
| --> $DIR/must_outlive_least_region_or_bound.rs:27:60 |
| | |
| LL | fn explicit4<'a>(x: &'a i32) -> Box<dyn Debug + 'static> { Box::new(x) } |
| | -- lifetime `'a` defined here ^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static` |
| | |
| help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `x` |
| | |
| LL | fn explicit4<'a>(x: &'a i32) -> Box<dyn Debug + 'a> { Box::new(x) } |
| | ~~ |
| help: alternatively, add an explicit `'static` bound to this reference |
| | |
| LL | fn explicit4<'a>(x: &'static i32) -> Box<dyn Debug + 'static> { Box::new(x) } |
| | ~~~~~~~~~~~~ |
| |
| error: aborting due to 13 previous errors |
| |
| Some errors have detailed explanations: E0310, E0621, E0700. |
| For more information about an error, try `rustc --explain E0310`. |