deps: Unpin zeroize (#580)

.travis.yml

@@ -6,7 +6,7 @@ cache: cargo
 env:
   global:
     - NODE_VERSION="14.7.0"
-    - SOLANA_CLI_VERSION="1.7.4"
+    - SOLANA_CLI_VERSION="1.7.8"
 git:
   submodules: true
 

Cargo.lock

@@ -198,7 +198,6 @@ dependencies = [
  "bytemuck",
  "solana-program",
  "thiserror",
- "zeroize",
 ]
 
 [[package]]
@@ -2832,8 +2831,7 @@ dependencies = [
 [[package]]
 name = "serum_dex"
 version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02705854bae4622e552346c8edd43ab90c7425da35d63d2c689f39238f8d8b25"
+source = "git+https://github.com/project-serum/serum-dex#9f776c45fa37ec80109ea1f46461a75125f3f334"
 dependencies = [
  "arrayref",
  "bincode",

examples/swap/deps/serum-dex

@@ -1 +1 @@
-Subproject commit 19c8e37bf41d044a084b21e58182a50d119d46a2
+Subproject commit 5420646709df6edaaea90162d4f7476328077293

lang/Cargo.toml

@@ -36,9 +36,3 @@ borsh = "0.9"
 bytemuck = "1.4.0"
 solana-program = "=1.7.8"
 thiserror = "1.0.20"
-
-#
-# Needed to prevent the build from failing. This is a transitive dependency of
-# solana-program.
-#
-zeroize = "=1.3.0"