mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-10 15:14:29 +00:00
134 lines
5.9 KiB
Text
134 lines
5.9 KiB
Text
error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:7:1
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LL | async fn private_future(rc: Rc<[u8]>, cell: &Cell<usize>) -> bool {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `private_future` is not `Send`
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note: future is not `Send` as this value is used across an await
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--> tests/ui/future_not_send.rs:9:20
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LL | async fn private_future(rc: Rc<[u8]>, cell: &Cell<usize>) -> bool {
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| -- has type `std::rc::Rc<[u8]>` which is not `Send`
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LL |
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LL | async { true }.await
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| ^^^^^ await occurs here, with `rc` maybe used later
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= note: `std::rc::Rc<[u8]>` doesn't implement `std::marker::Send`
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note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync`
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--> tests/ui/future_not_send.rs:7:39
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LL | async fn private_future(rc: Rc<[u8]>, cell: &Cell<usize>) -> bool {
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| ^^^^ has type `&std::cell::Cell<usize>` which is not `Send`, because `std::cell::Cell<usize>` is not `Sync`
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= note: `std::cell::Cell<usize>` doesn't implement `std::marker::Sync`
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= note: `-D clippy::future-not-send` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::future_not_send)]`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:12:1
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LL | pub async fn public_future(rc: Rc<[u8]>) {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `public_future` is not `Send`
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note: future is not `Send` as this value is used across an await
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--> tests/ui/future_not_send.rs:14:20
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LL | pub async fn public_future(rc: Rc<[u8]>) {
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| -- has type `std::rc::Rc<[u8]>` which is not `Send`
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LL |
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LL | async { true }.await;
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| ^^^^^ await occurs here, with `rc` maybe used later
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= note: `std::rc::Rc<[u8]>` doesn't implement `std::marker::Send`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:21:1
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LL | async fn private_future2(rc: Rc<[u8]>, cell: &Cell<usize>) -> bool {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `private_future2` is not `Send`
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note: captured value is not `Send`
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--> tests/ui/future_not_send.rs:21:26
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LL | async fn private_future2(rc: Rc<[u8]>, cell: &Cell<usize>) -> bool {
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| ^^ has type `std::rc::Rc<[u8]>` which is not `Send`
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= note: `std::rc::Rc<[u8]>` doesn't implement `std::marker::Send`
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note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync`
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--> tests/ui/future_not_send.rs:21:40
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LL | async fn private_future2(rc: Rc<[u8]>, cell: &Cell<usize>) -> bool {
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| ^^^^ has type `&std::cell::Cell<usize>` which is not `Send`, because `std::cell::Cell<usize>` is not `Sync`
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= note: `std::cell::Cell<usize>` doesn't implement `std::marker::Sync`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:26:1
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LL | pub async fn public_future2(rc: Rc<[u8]>) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `public_future2` is not `Send`
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note: captured value is not `Send`
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--> tests/ui/future_not_send.rs:26:29
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LL | pub async fn public_future2(rc: Rc<[u8]>) {}
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| ^^ has type `std::rc::Rc<[u8]>` which is not `Send`
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= note: `std::rc::Rc<[u8]>` doesn't implement `std::marker::Send`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:38:5
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LL | async fn private_future(&self) -> usize {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `private_future` is not `Send`
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note: future is not `Send` as this value is used across an await
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--> tests/ui/future_not_send.rs:40:24
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LL | async fn private_future(&self) -> usize {
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| ----- has type `&Dummy` which is not `Send`
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LL |
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LL | async { true }.await;
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| ^^^^^ await occurs here, with `&self` maybe used later
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= note: `std::rc::Rc<[u8]>` doesn't implement `std::marker::Sync`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:44:5
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LL | pub async fn public_future(&self) {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `public_future` is not `Send`
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note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync`
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--> tests/ui/future_not_send.rs:44:32
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LL | pub async fn public_future(&self) {
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| ^^^^^ has type `&Dummy` which is not `Send`, because `Dummy` is not `Sync`
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= note: `std::rc::Rc<[u8]>` doesn't implement `std::marker::Sync`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:55:1
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LL | / async fn generic_future<T>(t: T) -> T
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LL | |
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LL | | where
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LL | | T: Send,
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| |____________^ future returned by `generic_future` is not `Send`
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note: future is not `Send` as this value is used across an await
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--> tests/ui/future_not_send.rs:61:20
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LL | let rt = &t;
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| -- has type `&T` which is not `Send`
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LL | async { true }.await;
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| ^^^^^ await occurs here, with `rt` maybe used later
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= note: `T` doesn't implement `std::marker::Sync`
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error: future cannot be sent between threads safely
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--> tests/ui/future_not_send.rs:73:1
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LL | async fn unclear_future<T>(t: T) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `unclear_future` is not `Send`
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note: captured value is not `Send`
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--> tests/ui/future_not_send.rs:73:28
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LL | async fn unclear_future<T>(t: T) {}
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| ^ has type `T` which is not `Send`
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= note: `T` doesn't implement `std::marker::Send`
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error: aborting due to 8 previous errors
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