diff --git a/programs/bpf/Cargo.lock b/programs/bpf/Cargo.lock
index 3a03a06b36..1caab53b37 100644
--- a/programs/bpf/Cargo.lock
+++ b/programs/bpf/Cargo.lock
@@ -417,6 +417,20 @@ name = "dtoa"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "ed25519-dalek"
+version = "1.0.0-pre.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "clear_on_drop 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curve25519-dalek 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "either"
 version = "1.5.3"
@@ -1709,6 +1723,7 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
  "curve25519-dalek 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ed25519-dalek 1.0.0-pre.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1717,26 +1732,12 @@ dependencies = [
  "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "solana-ed25519-dalek 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "solana-ed25519-dalek"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "clear_on_drop 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "curve25519-dalek 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "solana-logger"
 version = "0.21.0"
@@ -1818,6 +1819,7 @@ dependencies = [
  "bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ed25519-dalek 1.0.0-pre.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "generic-array 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1834,7 +1836,6 @@ dependencies = [
  "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-crate-features 0.21.0",
- "solana-ed25519-dalek 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.21.0",
  "untrusted 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2620,6 +2621,7 @@ dependencies = [
 "checksum digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "03b072242a8cbaf9c145665af9d250c59af3b958f83ed6824e13533cf76d5b90"
 "checksum digest 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
 "checksum dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ea57b42383d091c85abcc2706240b94ab2a8fa1fc81c10ff23c4de06e2a90b5e"
+"checksum ed25519-dalek 1.0.0-pre.2 (registry+https://github.com/rust-lang/crates.io-index)" = "845aaacc16f01178f33349e7c992ecd0cee095aa5e577f0f4dee35971bd36455"
 "checksum either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3"
 "checksum elf 0.0.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4841de15dbe0e49b9b62a417589299e3be0d557e0900d36acb87e6dae47197f5"
 "checksum elfkit 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "02f182eda16a7360c80a2f8638d0726e9d5478173058f1505c42536ca666ecd2"
@@ -2747,7 +2749,6 @@ dependencies = [
 "checksum sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b4d8bfd0e469f417657573d8451fb33d16cfe0989359b93baf3a1ffc639543d"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ab606a9c5e214920bb66c458cd7be8ef094f813f20fe77a54cc7dbfff220d4b7"
-"checksum solana-ed25519-dalek 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1c21f9d5aa62959872194dfd086feb4e8efec1c2589d27e6a0339904759e99fc"
 "checksum solana_rbpf 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)" = "cb45776e861c7a71ed3ccb629c076889dc91a9ba7c1e58e44f8c7b9f916f07c9"
 "checksum sourcefile 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf77cb82ba8453b42b6ae1d692e4cdc92f9a47beaf89a847c8be83f4e328ad3"
 "checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
diff --git a/programs/bpf/rust/alloc/src/lib.rs b/programs/bpf/rust/alloc/src/lib.rs
index 8a823c9f97..85e90f16ea 100644
--- a/programs/bpf/rust/alloc/src/lib.rs
+++ b/programs/bpf/rust/alloc/src/lib.rs
@@ -54,25 +54,6 @@ pub extern "C" fn entrypoint(_input: *mut u8) -> u32 {
         alloc::alloc::dealloc(ptr, layout);
     }
 
-    // TODO not supported bump allocator
-    // unsafe {
-    //     // Test alloc all bytes and one more (assumes heap size of 2048)
-
-    //     let layout = Layout::from_size_align(2048, mem::align_of::<u8>()).unwrap();
-    //     let ptr = alloc::alloc::alloc(layout);
-    //     if ptr.is_null() {
-    //         info!("Error: Alloc of 2048 bytes failed");
-    //         alloc::alloc::handle_alloc_error(layout);
-    //     }
-    //     let layout = Layout::from_size_align(1, mem::align_of::<u8>()).unwrap();
-    //     let ptr_fail = alloc::alloc::alloc(layout);
-    //     if !ptr_fail.is_null() {
-    //         info!("Error: Able to alloc 1 more then max");
-    //         panic!();
-    //     }
-    //     alloc::alloc::dealloc(ptr, layout);
-    // }
-
     {
         // Test allocated vector