diff --git a/ci/docker-rust/Dockerfile b/ci/docker-rust/Dockerfile
index 095616c11a..ca82879cce 100644
--- a/ci/docker-rust/Dockerfile
+++ b/ci/docker-rust/Dockerfile
@@ -29,9 +29,10 @@ RUN set -x \
  && rustup component add rustfmt \
  && rustup component add clippy \
  && cargo install cargo-audit \
- && cargo install svgbob_cli \
  && cargo install mdbook \
  && cargo install mdbook-linkcheck \
+ && cargo install svgbob_cli \
+ && cargo install wasm-pack \
  && rustc --version \
  && cargo --version \
  && curl -OL https://github.com/google/protobuf/releases/download/v$PROTOC_VERSION/$PROTOC_ZIP \
diff --git a/crate-features/Cargo.toml b/crate-features/Cargo.toml
index b83c578752..f9c177c7a1 100644
--- a/crate-features/Cargo.toml
+++ b/crate-features/Cargo.toml
@@ -19,13 +19,16 @@ lazy_static = { version = "1.4.0", features = ["spin", "spin_no_std"] }
 libc = { version = "0.2.62", features = ["extra_traits"] }
 rand_chacha = { version = "0.2.2" }
 regex-syntax = { version = "0.6.12" }
-reqwest = { version = "0.11.2", default-features = false, features = ["blocking", "rustls-tls", "json"] }
-ring = { version = "0.16.17" }
 serde = { version = "1.0.100", features = ["rc"] }
 ed25519-dalek = { version = "=1.0.1", features = ["serde"] }
 syn_0_15 = { package = "syn", version = "0.15.42", features = ["extra-traits", "fold", "full"] }
 syn_1_0 = { package = "syn", version = "1.0.3", features = ["extra-traits", "fold", "full"] }
 winapi = { version = "0.3.8", features=["basetsd", "consoleapi", "errhandlingapi", "fileapi", "handleapi", "impl-debug", "impl-default", "knownfolders", "libloaderapi", "memoryapi", "minwinbase", "minwindef", "ntdef", "ntsecapi", "ntstatus", "objbase", "processenv", "processthreadsapi", "profileapi", "shlobj", "std", "synchapi", "sysinfoapi", "timezoneapi", "utilapiset", "winbase", "wincon", "windef", "winerror", "winnls", "winnt", "winreg", "winsock2", "winuser", "ws2def", "ws2ipdef", "ws2tcpip", "wtypesbase"] }
 
+
+[target.'cfg(not(target_family = "wasm"))'.dependencies]
+reqwest = { version = "0.11.2", default-features = false, features = ["blocking", "rustls-tls", "json"] }
+ring = { version = "0.16.17" }
+
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
diff --git a/programs/bpf/rust/custom_heap/src/lib.rs b/programs/bpf/rust/custom_heap/src/lib.rs
index fc3ec780f5..605afcbddb 100644
--- a/programs/bpf/rust/custom_heap/src/lib.rs
+++ b/programs/bpf/rust/custom_heap/src/lib.rs
@@ -26,8 +26,8 @@ unsafe impl std::alloc::GlobalAlloc for BumpAllocator {
             0x42 as *mut u8
         } else {
             const POS_PTR: *mut usize = HEAP_START_ADDRESS as *mut usize;
-            const TOP_ADDRESS: usize = HEAP_START_ADDRESS + HEAP_LENGTH;
-            const BOTTOM_ADDRESS: usize = HEAP_START_ADDRESS + size_of::<*mut u8>();
+            const TOP_ADDRESS: usize = HEAP_START_ADDRESS as usize + HEAP_LENGTH;
+            const BOTTOM_ADDRESS: usize = HEAP_START_ADDRESS as usize + size_of::<*mut u8>();
 
             let mut pos = *POS_PTR;
             if pos == 0 {
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 7ca1ce72b5..40ae36e1f7 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -90,3 +90,6 @@ rustc_version = "0.4"
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
+
+[lib]
+crate-type = ["cdylib", "rlib"]
diff --git a/sdk/program/Cargo.toml b/sdk/program/Cargo.toml
index 3143445a8f..5da12d89c5 100644
--- a/sdk/program/Cargo.toml
+++ b/sdk/program/Cargo.toml
@@ -55,3 +55,6 @@ rustc_version = "0.4"
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
+
+[lib]
+crate-type = ["cdylib", "rlib"]
diff --git a/sdk/program/src/entrypoint.rs b/sdk/program/src/entrypoint.rs
index 8a17cf696d..df34b35844 100644
--- a/sdk/program/src/entrypoint.rs
+++ b/sdk/program/src/entrypoint.rs
@@ -28,7 +28,7 @@ pub type ProcessInstruction =
 pub const SUCCESS: u64 = 0;
 
 /// Start address of the memory region used for program heap.
-pub const HEAP_START_ADDRESS: usize = 0x300000000;
+pub const HEAP_START_ADDRESS: u64 = 0x300000000;
 /// Length of the heap memory region used for program heap.
 pub const HEAP_LENGTH: usize = 32 * 1024;
 
@@ -70,7 +70,7 @@ macro_rules! custom_heap_default {
         #[cfg(all(not(feature = "custom-heap"), target_arch = "bpf"))]
         #[global_allocator]
         static A: $crate::entrypoint::BumpAllocator = $crate::entrypoint::BumpAllocator {
-            start: $crate::entrypoint::HEAP_START_ADDRESS,
+            start: $crate::entrypoint::HEAP_START_ADDRESS as usize,
             len: $crate::entrypoint::HEAP_LENGTH,
         };
     };