The tonic simulator on madsim.

If it looks like tonic, acts like tonic, and is used like tonic, then it probably is tonic.

Replace all tonic and tonic-build entries in your Cargo.toml:

[dependencies]
tonic = { version = "0.5", package = "madsim-tonic" }

[dev-dependencies]
tonic-build = { version = "0.5", package = "madsim-tonic-build" }