error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:9:5 | LL | let _ = m.lock(); | ^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` = note: `-D clippy::let-underscore-lock` implied by `-D warnings` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:10:5 | LL | let _ = rw.read(); | ^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:11:5 | LL | let _ = rw.write(); | ^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:12:5 | LL | let _ = m.try_lock(); | ^^^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:13:5 | LL | let _ = rw.try_read(); | ^^^^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:14:5 | LL | let _ = rw.try_write(); | ^^^^^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:23:5 | LL | let _ = p_m.lock(); | ^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:26:5 | LL | let _ = p_m1.lock(); | ^^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:29:5 | LL | let _ = p_rw.read(); | ^^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: non-binding let on a synchronization lock --> $DIR/let_underscore_lock.rs:30:5 | LL | let _ = p_rw.write(); | ^^^^^^^^^^^^^^^^^^^^^ | = help: consider using an underscore-prefixed named binding or dropping explicitly with `std::mem::drop` error: aborting due to 10 previous errors