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Diffstat (limited to 'tests/ui/lifetimes/refcell-in-tail-expr.edition2021.stderr')
| -rw-r--r-- | tests/ui/lifetimes/refcell-in-tail-expr.edition2021.stderr | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/lifetimes/refcell-in-tail-expr.edition2021.stderr b/tests/ui/lifetimes/refcell-in-tail-expr.edition2021.stderr new file mode 100644 index 00000000000..858be42d540 --- /dev/null +++ b/tests/ui/lifetimes/refcell-in-tail-expr.edition2021.stderr @@ -0,0 +1,26 @@ +error[E0597]: `cell` does not live long enough + --> $DIR/refcell-in-tail-expr.rs:12:27 + | +LL | let cell = std::cell::RefCell::new(0u8); + | ---- binding `cell` declared here +LL | +LL | if let Ok(mut byte) = cell.try_borrow_mut() { + | ^^^^----------------- + | | + | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... +... +LL | } + | - + | | + | `cell` dropped here while still borrowed + | ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Result<RefMut<'_, u8>, BorrowMutError>` + | +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | }; + | + + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0597`. |