diff --git a/src/libstd/env.rs b/src/libstd/env.rs
index ed34c1204b3..27bf326631f 100644
--- a/src/libstd/env.rs
+++ b/src/libstd/env.rs
@@ -956,8 +956,7 @@ mod arch {
 mod tests {
     use super::*;
 
-    use ffi::OsStr;
-    use path::{Path, PathBuf};
+    use path::Path;
 
     #[test]
     #[cfg_attr(target_os = "emscripten", ignore)]
@@ -980,6 +979,8 @@ mod tests {
     #[test]
     #[cfg(windows)]
     fn split_paths_windows() {
+        use path::PathBuf;
+
         fn check_parse(unparsed: &str, parsed: &[&str]) -> bool {
             split_paths(unparsed).collect::<Vec<_>>() ==
                 parsed.iter().map(|s| PathBuf::from(*s)).collect::<Vec<_>>()
@@ -1000,6 +1001,8 @@ mod tests {
     #[test]
     #[cfg(unix)]
     fn split_paths_unix() {
+        use path::PathBuf;
+
         fn check_parse(unparsed: &str, parsed: &[&str]) -> bool {
             split_paths(unparsed).collect::<Vec<_>>() ==
                 parsed.iter().map(|s| PathBuf::from(*s)).collect::<Vec<_>>()
@@ -1015,6 +1018,8 @@ mod tests {
     #[test]
     #[cfg(unix)]
     fn join_paths_unix() {
+        use ffi::OsStr;
+
         fn test_eq(input: &[&str], output: &str) -> bool {
             &*join_paths(input.iter().cloned()).unwrap() ==
                 OsStr::new(output)
@@ -1031,6 +1036,8 @@ mod tests {
     #[test]
     #[cfg(windows)]
     fn join_paths_windows() {
+        use ffi::OsStr;
+
         fn test_eq(input: &[&str], output: &str) -> bool {
             &*join_paths(input.iter().cloned()).unwrap() ==
                 OsStr::new(output)
diff --git a/src/libstd/fs.rs b/src/libstd/fs.rs
index f40aed2478a..82ba1a8774c 100644
--- a/src/libstd/fs.rs
+++ b/src/libstd/fs.rs
@@ -1981,7 +1981,7 @@ impl AsInnerMut<fs_imp::DirBuilder> for DirBuilder {
     }
 }
 
-#[cfg(all(test, not(target_os = "emscripten")))]
+#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten"))))]
 mod tests {
     use io::prelude::*;
 
diff --git a/src/libstd/net/tcp.rs b/src/libstd/net/tcp.rs
index 539ff1df187..78235ea1b4b 100644
--- a/src/libstd/net/tcp.rs
+++ b/src/libstd/net/tcp.rs
@@ -885,7 +885,7 @@ impl fmt::Debug for TcpListener {
     }
 }
 
-#[cfg(all(test, not(target_os = "emscripten")))]
+#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten"))))]
 mod tests {
     use io::ErrorKind;
     use io::prelude::*;
diff --git a/src/libstd/net/udp.rs b/src/libstd/net/udp.rs
index 84ceaa65951..fc7f9205d06 100644
--- a/src/libstd/net/udp.rs
+++ b/src/libstd/net/udp.rs
@@ -786,7 +786,7 @@ impl fmt::Debug for UdpSocket {
     }
 }
 
-#[cfg(all(test, not(target_os = "emscripten")))]
+#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten"))))]
 mod tests {
     use io::ErrorKind;
     use net::*;
diff --git a/src/libstd/process.rs b/src/libstd/process.rs
index 33e8a87a0b6..5c66ac6ddde 100644
--- a/src/libstd/process.rs
+++ b/src/libstd/process.rs
@@ -1392,7 +1392,7 @@ pub fn id() -> u32 {
     ::sys::os::getpid()
 }
 
-#[cfg(all(test, not(target_os = "emscripten")))]
+#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten"))))]
 mod tests {
     use io::prelude::*;