Dunno why they changed it, but the old "depend directly on git"
thing that cargo-fuzz used forever is now deprecated that that
repo is archived, they've now moved to another repo and publish
properly on crates.io.
bitcoin = { version = "0.28.1", features = ["secp-lowmemory"] }
hex = "0.3"
honggfuzz = { version = "0.5", optional = true }
-libfuzzer-sys = { git = "https://github.com/rust-fuzz/libfuzzer-sys.git", optional = true }
+libfuzzer-sys = { version = "0.4", optional = true }
[build-dependencies]
cc = "1.0"