Quick and dirty fix for rand_jitter error type

rand_jitter/CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.4] - 2019-05-02
+- Change error conversion code to partially fix #738
+
 ## [0.1.3] - 2019-02-05
 - Use libc in `no_std` mode to fix #723
 

rand_jitter/Cargo.toml

@@ -1,8 +1,8 @@
 [package]
 name = "rand_jitter"
-version = "0.1.3"
+version = "0.1.4"
 authors = ["The Rand Project Developers"]
-license = "MIT/Apache-2.0"
+license = "MIT OR Apache-2.0"
 readme = "README.md"
 repository = "https://github.com/rust-random/rand"
 documentation = "https://docs.rs/rand_jitter"

rand_jitter/src/error.rs

@@ -59,8 +59,12 @@ impl From<TimerError> for Error {
     fn from(err: TimerError) -> Error {
         // Timer check is already quite permissive of failures so we don't
         // expect false-positive failures, i.e. any error is irrecoverable.
-        Error::with_cause(ErrorKind::Unavailable,
-                              "timer jitter failed basic quality tests", err)
+        #[cfg(feature = "std")] {
+            Error::with_cause(ErrorKind::Unavailable, "timer jitter failed basic quality tests", err)
+        }
+        #[cfg(not(feature = "std"))] {
+            Error::new(ErrorKind::Unavailable, "timer jitter failed basic quality tests")
+        }
     }
 }