syntax_data: {"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"unstable_location_reason_default:"}]}
source_snippet:         unstable_location_reason_default: "this crate is being loaded from the sysroot, an \
context_before:         unstable_feature_bound,
context_after:                           unstable location; did you mean to load this crate \