[deps] upgrade fern 0.5.x -> 0.6.x

Cargo.lock

@@ -1442,11 +1442,10 @@ checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 
 [[package]]
 name = "fern"
-version = "0.5.9"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e69ab0d5aca163e388c3a49d284fed6c3d0810700e77c5ae2756a50ec1a4daaa"
+checksum = "8c9a4820f0ccc8a7afd67c39a0f1a0f4b07ca1725164271a64939d7aeb9af065"
 dependencies = [
- "chrono",
  "colored",
  "log",
 ]

lib/core/core/Cargo.toml

@@ -25,7 +25,7 @@ durs-network = { path = "../network" }
 durs-network-documents = { path = "../../dunp/network-documents" }
 envy = "0.4.1"
 failure = "0.1.5"
-fern = { version = "0.5.8", features = ["colored"] }
+fern = { version = "0.6.0", features = ["colored"] }
 log = "0.4.*"
 serde = "1.0.*"
 serde_derive = "1.0.*"

lib/tests-tools/common-tests-tools/Cargo.toml

@@ -14,7 +14,7 @@ path = "src/lib.rs"
 
 [dependencies]
 chrono = "0.4"
-fern = { version = "0.5.8", features = ["colored"] }
+fern = { version = "0.6.0", features = ["colored"] }
 log = "0.4.*"
 
 [dev-dependencies]