diff options
Diffstat (limited to 'tests/ui/closures/2229_closure_analysis/migrations/auto_traits.stderr')
| -rw-r--r-- | tests/ui/closures/2229_closure_analysis/migrations/auto_traits.stderr | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/tests/ui/closures/2229_closure_analysis/migrations/auto_traits.stderr b/tests/ui/closures/2229_closure_analysis/migrations/auto_traits.stderr new file mode 100644 index 000000000..3a42cc8b8 --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/migrations/auto_traits.stderr @@ -0,0 +1,67 @@ +error: changes to closure capture in Rust 2021 will affect which traits the closure implements + --> $DIR/auto_traits.rs:22:19 + | +LL | thread::spawn(move || unsafe { + | ^^^^^^^ in Rust 2018, this closure implements `Send` as `fptr` implements `Send`, but in Rust 2021, this closure will no longer implement `Send` because `fptr` is not fully captured and `fptr.0` does not implement `Send` +... +LL | *fptr.0 = 20; + | ------- in Rust 2018, this closure captures all of `fptr`, but in Rust 2021, it will only capture `fptr.0` + | + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html> +note: the lint level is defined here + --> $DIR/auto_traits.rs:2:9 + | +LL | #![deny(rust_2021_incompatible_closure_captures)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: add a dummy let to cause `fptr` to be fully captured + | +LL ~ thread::spawn(move || { let _ = &fptr; unsafe { +LL | + ... +LL | +LL ~ } }); + | + +error: changes to closure capture in Rust 2021 will affect which traits the closure implements + --> $DIR/auto_traits.rs:42:19 + | +LL | thread::spawn(move || unsafe { + | ^^^^^^^ + | | + | in Rust 2018, this closure implements `Send` as `fptr` implements `Send`, but in Rust 2021, this closure will no longer implement `Send` because `fptr` is not fully captured and `fptr.0.0` does not implement `Send` + | in Rust 2018, this closure implements `Sync` as `fptr` implements `Sync`, but in Rust 2021, this closure will no longer implement `Sync` because `fptr` is not fully captured and `fptr.0.0` does not implement `Sync` +... +LL | *fptr.0.0 = 20; + | --------- in Rust 2018, this closure captures all of `fptr`, but in Rust 2021, it will only capture `fptr.0.0` + | + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html> +help: add a dummy let to cause `fptr` to be fully captured + | +LL ~ thread::spawn(move || { let _ = &fptr; unsafe { +LL | + ... +LL | +LL ~ } }); + | + +error: changes to closure capture in Rust 2021 will affect drop order and which traits the closure implements + --> $DIR/auto_traits.rs:67:13 + | +LL | let c = || { + | ^^ in Rust 2018, this closure implements `Clone` as `f` implements `Clone`, but in Rust 2021, this closure will no longer implement `Clone` because `f` is not fully captured and `f.1` does not implement `Clone` +... +LL | let f_1 = f.1; + | --- in Rust 2018, this closure captures all of `f`, but in Rust 2021, it will only capture `f.1` +... +LL | } + | - in Rust 2018, `f` is dropped here, but in Rust 2021, only `f.1` will be dropped here as part of the closure + | + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html> +help: add a dummy let to cause `f` to be fully captured + | +LL ~ let c = || { +LL + let _ = &f; + | + +error: aborting due to 3 previous errors + |