https://doc.rust-lang.org/nightly/nightly-rustc/rustc_trait_selection/solve/struct.ExternalConstraintsData.html
ExternalConstraintsData in rustc_trait_selection::solve - Rust
Additional constraints returned on success.
rustctraitselectionsolve
https://doc.rust-lang.org/nightly/nightly-rustc/rustc_infer/infer/canonical/ir/solve/struct.ExternalConstraintsData.html
ExternalConstraintsData in rustc_infer::infer::canonical::ir::solve - Rust
Additional constraints returned on success.
rustcinfercanonicalirsolve