Set backtrace to 0

Author: aumetra

devtools/test_workspace.sh

@@ -4,7 +4,8 @@ command -v shellcheck >/dev/null && shellcheck "$0"
 
 cargo fmt
 (cd packages/crypto && cargo test)
-(cd packages/std && cargo test --features iterator,cosmwasm_1_2)
+# A test inside the std package expects backtraces to be disabled
+(cd packages/std && RUST_BACKTRACE=0 cargo test --features iterator,cosmwasm_1_2)
 (cd packages/schema && cargo test)
 (cd packages/schema-derive && cargo test)
 (cd packages/vm && cargo test --features iterator,stargate)