UTC Offset is not Send (cannot send DateTime across mps::channel)

[chklauser]

I have a struct with a DateTime<UTC> field that I would like to send across a channel, like this:

pub struct Signal {
  pub time: DateTime<UTC>,
  pub raw: String
}

But when I want to create the channel, rustc complains that

error: the trait `core::marker::Send` is not implemented for the type `<chrono::offset::utc::UTC as chrono::offset::TimeZone>::Offset` [    E0277]    

let (new_signal_sender, new_signal_rcvr) = channel::<Signal>();
                                           ^~~~~~~~~~~~~~~~~
note: `<chrono::offset::utc::UTC as chrono::offset::TimeZone>::Offset` cannot be sent between threads safely
let (new_signal_sender, new_signal_rcvr) = channel::<Signal>();

Now Send is easily the part of Rust I understand the least, but I would have expected a DateTime object to be "sendable".

[lifthrasiir]

Thank you for reporting. Chrono 0.2.3 fixed this issue.