serial test for env paths

Cargo.lock

@@ -1970,6 +1970,28 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serial_test"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0bccbcf40c8938196944a3da0e133e031a33f4d6b72db3bda3cc556e361905d"
+dependencies = [
+ "lazy_static",
+ "parking_lot 0.11.2",
+ "serial_test_derive",
+]
+
+[[package]]
+name = "serial_test_derive"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2acd6defeddb41eb60bb468f8825d0cfd0c2a76bc03bfd235b6a1dc4f6a1ad5"
+dependencies = [
+ "proc-macro2",
+ "quote 1.0.9",
+ "syn 1.0.76",
+]
+
 [[package]]
 name = "sha2"
 version = "0.9.8"
@@ -2201,6 +2223,7 @@ dependencies = [
  "rust-s3",
  "self_update",
  "serde",
+ "serial_test",
  "simplelog",
  "ssh2",
  "suppaftp",