Update rand_core (#2919)

* a

* upd lain

fuzzers/baby/tutorial/Cargo.toml

@@ -32,9 +32,9 @@ libafl_targets = { path = "../../../libafl_targets", features = [
 serde = { version = "1.0.210", default-features = false, features = [
   "alloc",
 ] } # serialization lib
-lain = { version = "0.5.5", features = [
+lain = { version = "0.5.6", features = [
   "serde_support",
-], git = "https://github.com/AFLplusplus/lain.git", rev = "208e927bcf411f62f8a1f51ac2d9f9423a1ec5d3" } # We're using a lain fork compatible with libafl's rand version
+], git = "https://github.com/AFLplusplus/lain.git", rev = "6ac90a35cfff15e314cf33b098f6cac4691c7ab3" } # We're using a lain fork compatible with libafl's rand version
 # TODO Include it only when building cc
 libafl_cc = { path = "../../../libafl_cc" }
 log = { version = "0.4.22", features = ["release_max_level_info"] }

libafl_bolts/Cargo.toml

@@ -143,7 +143,7 @@ backtrace = { workspace = true, default-features = true, optional = true } # Use
 ctor = { optional = true, version = "0.2.9" }
 miniz_oxide = { version = "0.8.0", optional = true }
 hostname = { version = "0.4.0", optional = true } # Is there really no gethostname in the stdlib?
-rand_core = { version = "0.6.4", optional = true }
+rand_core = { version = "0.9.0", optional = true }
 nix = { workspace = true, optional = true, default-features = false, features = [
   "fs",
   "signal",

libafl_bolts/src/rands/mod.rs

@@ -263,10 +263,6 @@ macro_rules! impl_rng_core {
             fn fill_bytes(&mut self, dest: &mut [u8]) {
                 rand_core::impls::fill_bytes_via_next(self, dest)
             }
-
-            fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
-                Ok(self.fill_bytes(dest))
-            }
         }
     };
 }