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error[E0261]: use of undeclared lifetime name `'tcx`
--> $DIR/issue-107988.rs:7:52
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LL | impl<T: ?Sized + TraitEngine<'tcx>> TraitEngineExt<'tcx> for T {
| - ^^^^ undeclared lifetime
| |
| help: consider introducing lifetime `'tcx` here: `'tcx,`
error[E0261]: use of undeclared lifetime name `'tcx`
--> $DIR/issue-107988.rs:7:30
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LL | impl<T: ?Sized + TraitEngine<'tcx>> TraitEngineExt<'tcx> for T {
| ^^^^ undeclared lifetime
|
= note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html
help: consider making the bound lifetime-generic with a new `'tcx` lifetime
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LL | impl<T: ?Sized + for<'tcx> TraitEngine<'tcx>> TraitEngineExt<'tcx> for T {
| +++++++++
help: consider introducing lifetime `'tcx` here
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LL | impl<'tcx, T: ?Sized + TraitEngine<'tcx>> TraitEngineExt<'tcx> for T {
| +++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0261`.
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