Disable all tests, which don't pass for target_os = "wasi"

Signed-off-by: Harald Hoyer <harald@profian.com>

tests/close_on_drop.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::io::Read;

tests/events.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::time::Duration;

tests/poll.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::net;

tests/registering.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::io::{self, Write};

tests/regressions.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::io::{self, Read};

tests/tcp.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use mio::net::{TcpListener, TcpStream};

tests/tcp_listener.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use mio::net::TcpListener;

tests/tcp_stream.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::io::{self, IoSlice, IoSliceMut, Read, Write};

tests/udp_socket.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use log::{debug, info};

tests/util/mod.rs

@@ -1,5 +1,6 @@
 // Not all functions are used by all tests.
 #![allow(dead_code, unused_macros)]
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use std::mem::size_of;

tests/waker.rs

@@ -1,3 +1,4 @@
+#![cfg(not(target_os = "wasi"))]
 #![cfg(all(feature = "os-poll", feature = "net"))]
 
 use mio::{Events, Poll, Token, Waker};