ΔE 17.4, loose: different enough that you should pick on purpose. Sangria Red is noticeably darker, more saturated, cooler than Rust.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Sangria Red is noticeably darker, more saturated, cooler than Rust.
The same difference applies the other way round: Rust is noticeably lighter, more muted, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Rust on the colour wheel See Sangria Red on the colour wheel
All matches: Rust equivalents · Sangria Red equivalents