https://github.com/deltachat/message-parser/blob/0.14.1/Cargo.lock#L174
The version should mose certainly be 0.14.1 here.
[[package]]
name = "deltachat_message_parser"
version = "0.12.0"
dependencies = [
"criterion",
"nom",
"serde",
"serde_derive",
"unic-idna-punycode",
]