As a sibling comment pointed out this isn't comparing the same things. I'll try to provide a better comparison.

On a warm build on my machine, after editing a string in Zed's `crates/zed/src/zed.rs` and editing a string in Rune's `./cmd/rune/main.go`

Zed: `cargo build --release`: 284s (debug 30s)

Rune: `go build ./cmd/rune`: 15s

note I'm using a release build in Cargo to make it a bit fairer as all builds are "release" builds in Go.