It's used only as a dev dependency in 8 crates.

Depender (with downloads and own rev deps) carbon-test-utils version
420 carbon-jupiter-dca-decoder dev ^0.7.0
420 carbon-fluxbeam-decoder dev ^0.7.0
410 carbon-lifinity-amm-v2-decoder dev ^0.7.0
390 carbon-system-program-decoder dev ^0.7.0
390 carbon-pumpfun-decoder dev ^0.7.0
350 carbon-moonshot-decoder dev ^0.7.0
290 carbon-pump-swap-decoder dev ^0.7.0
130 carbon-meteora-pools-decoder dev ^0.7.0