atat: Cannot parse ATI - "ParseString" error

I’m on 0.8.4 at the moment and trying to parse the manufacturer revision information. I’ve tried working through serde_at/src/de/mod.rs to try and understand the failure but can’t quite grok it.

The request I’m sending:

#[derive(Clone, AtatCmd)]
#[at_cmd("I", responses::Ident)]
pub struct IdentificationInformation;

The response struct:

#[derive(Clone, Debug, AtatResp, Serialize)]
pub struct Ident {
    pub revision: String<consts::U128>,
}

The raw logs:

DEBUG [atat::client:112] Sending command: ""ATI""
DEBUG [atat::ingress_manager:118] Received response ""Quectel\r\nUC20\r\nRevision: UC20GQBR03A12E1G""

However, the ParseString error is always returned. Any ideas? I get the feeling the Quectel\r\nUC20\r\n section of the string is confusing the parser, as the modem doesn’t echo back the ATI first.