Switch from failure to anyhow.

  - Use the anyhow crate instead of failure to implement the dynamic
    side of our error handling.  anyhow::Error derefs to dyn
    std::error::Error, allowing better interoperability with other
    stdlib-based error handling libraries.

  - Fixes #444.

1 files changed, 2 insertions, 2 deletions

diff --git a/openpgp/tests/for-each-artifact.rs b/openpgp/tests/for-each-artifact.rs
index 3a1c8fb4..a5327433 100644
--- a/openpgp/tests/for-each-artifact.rs
+++ b/openpgp/tests/for-each-artifact.rs
@@ -18,12 +18,12 @@ mod for_each_artifact {
                 (p as &Marshal).serialize(&mut v)?;
                 let q = openpgp::Packet::from_bytes(&v)?;
                 if p != &q {
-                    return Err(failure::format_err!(
+                    return Err(anyhow::anyhow!(
                         "assertion failed: p == q\np = {:?}\nq = {:?}", p, q));
                 }
                 let w = (p as &MarshalInto).to_vec()?;
                 if v != w {
-                    return Err(failure::format_err!(
+                    return Err(anyhow::anyhow!(
                         "assertion failed: v == w\nv = {:?}\nw = {:?}", v, w));
                 }
                 Ok(())