Vendor dependencies

Let's see how I like this workflow.

vendor/tokio/tests/sync_panic.rs

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+#![warn(rust_2018_idioms)]
+#![cfg(all(feature = "full", not(tokio_wasi)))]
+
+use std::{error::Error, sync::Arc};
+use tokio::{
+    runtime::{Builder, Runtime},
+    sync::{broadcast, mpsc, oneshot, Mutex, RwLock, Semaphore},
+};
+
+mod support {
+    pub mod panic;
+}
+use support::panic::test_panic;
+
+#[test]
+fn broadcast_channel_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let (_, _) = broadcast::channel::<u32>(0);
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn mutex_blocking_lock_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        rt.block_on(async {
+            let mutex = Mutex::new(5_u32);
+            let _g = mutex.blocking_lock();
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn oneshot_blocking_recv_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        rt.block_on(async {
+            let (_tx, rx) = oneshot::channel::<u8>();
+            let _ = rx.blocking_recv();
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn rwlock_with_max_readers_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let _ = RwLock::<u8>::with_max_readers(0, (u32::MAX >> 3) + 1);
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn rwlock_blocking_read_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        rt.block_on(async {
+            let lock = RwLock::<u8>::new(0);
+            let _ = lock.blocking_read();
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn rwlock_blocking_write_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        rt.block_on(async {
+            let lock = RwLock::<u8>::new(0);
+            let _ = lock.blocking_write();
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn mpsc_bounded_channel_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let (_, _) = mpsc::channel::<u8>(0);
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn mpsc_bounded_receiver_blocking_recv_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        let (_tx, mut rx) = mpsc::channel::<u8>(1);
+        rt.block_on(async {
+            let _ = rx.blocking_recv();
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn mpsc_bounded_sender_blocking_send_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        let (tx, _rx) = mpsc::channel::<u8>(1);
+        rt.block_on(async {
+            let _ = tx.blocking_send(3);
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn mpsc_unbounded_receiver_blocking_recv_panic_caller() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let rt = current_thread();
+        let (_tx, mut rx) = mpsc::unbounded_channel::<u8>();
+        rt.block_on(async {
+            let _ = rx.blocking_recv();
+        });
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn semaphore_merge_unrelated_owned_permits() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let sem1 = Arc::new(Semaphore::new(42));
+        let sem2 = Arc::new(Semaphore::new(42));
+        let mut p1 = sem1.try_acquire_owned().unwrap();
+        let p2 = sem2.try_acquire_owned().unwrap();
+        p1.merge(p2);
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+#[test]
+fn semaphore_merge_unrelated_permits() -> Result<(), Box<dyn Error>> {
+    let panic_location_file = test_panic(|| {
+        let sem1 = Semaphore::new(42);
+        let sem2 = Semaphore::new(42);
+        let mut p1 = sem1.try_acquire().unwrap();
+        let p2 = sem2.try_acquire().unwrap();
+        p1.merge(p2);
+    });
+
+    // The panic location should be in this file
+    assert_eq!(&panic_location_file.unwrap(), file!());
+
+    Ok(())
+}
+
+fn current_thread() -> Runtime {
+    Builder::new_current_thread().enable_all().build().unwrap()
+}