feat(error): implement Error::source when available

Closes #1768
2019-02-27 13:18:02 -08:00
parent 0bf30ccc68
commit 4cf22dfa21
3 changed files with 22 additions and 0 deletions
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,6 +38,9 @@ tokio-threadpool = { version = "0.1.3", optional = true }
 tokio-timer = { version = "0.2", optional = true }
 want = "0.0.6"

+[build-dependencies]
+rustc_version = "0.2"
+
 [dev-dependencies]
 futures-timer = "0.1"
 num_cpus = "1.0"