1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
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 ~ } }).join().unwrap();
|
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 ~ } }).join().unwrap();
|
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
|
