Was using wrong static for jemalloc (#51)

Author: Solar Mithril

crates/op-rbuilder/src/main.rs

@@ -28,7 +28,7 @@ use monitor_tx_pool::monitor_tx_pool;
 // Prefer jemalloc for performance reasons.
 #[cfg(all(feature = "jemalloc", unix))]
 #[global_allocator]
-static ALLOC: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
+static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
 
 fn main() {
     Cli::<OpChainSpecParser, args::OpRbuilderArgs>::parse()