update ~ pin 'retain_mut' to v0.1.2 (with MinSRV maint ToDO)
v0.1.5 uses const generics which aren't stable until rust v1.51.0
@@ -17,7 +17,7 @@ path = "src/tee.rs"
[dependencies]
clap = { version = "2.33", features = ["wrap_help"] }
libc = "0.2.42"
-retain_mut = "0.1.2"
+retain_mut = "=0.1.2" # ToDO: [2021-01-01; rivy; maint/MinSRV] ~ v0.1.5 uses const generics which aren't stabilized until rust v1.51.0
uucore = { version=">=0.0.10", package="uucore", path="../../uucore", features=["libc"] }
uucore_procs = { version=">=0.0.7", package="uucore_procs", path="../../uucore_procs" }
