226     stdin: Option<imp::ChildStdin>,
687             stdin: spawned_child.stdin.map(|inner| ChildStdin { inner }),  in spawn()
896     pub stdin: Option<ChildStdin>,
1114 pub struct ChildStdin {  struct
1115     inner: imp::ChildStdin,  argument
1136 impl AsyncWrite for ChildStdin {  implementation
1176 impl TryInto<Stdio> for ChildStdin {  implementation
1204     use super::{ChildStderr, ChildStdin, ChildStdout};
1206     impl AsRawFd for ChildStdin {  implementation
1229     use super::{ChildStderr, ChildStdin, ChildStdout};
1231     impl AsRawHandle for ChildStdin {  implementation