pub fn target_dir_from_metadata(json: &str) -> Option<&str>Expand description
Cargo’s target directory, read out of cargo metadata output.
A string scan rather than a JSON dependency: target_directory is a
top-level string in a document this crate never otherwise parses, and
the alternative is asking every consumer of this CLI to build serde’s
derive for one field.
Returns None when the field is absent, which is the honest answer
for output this did not understand: the caller falls back rather
than guessing a path and reporting somebody else’s bug.