switch from failure to anyhow

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

tests/blob_writer.rs

@@ -1,4 +1,4 @@
-use failure::*;
+use anyhow::{bail, Error};
 use std::sync::Arc;
 use std::io::Cursor;
 use std::io::{Read, Write, Seek, SeekFrom };

tests/catar.rs

@@ -1,4 +1,4 @@
-use failure::*;
+use anyhow::{Error};
 
 use std::process::Command;
 use proxmox_backup::pxar::*;

tests/prune.rs

@@ -1,4 +1,4 @@
-use failure::*;
+use anyhow::{Error};
 use std::path::PathBuf;
 
 use proxmox_backup::backup::*;

tests/verify-api.rs

@@ -1,4 +1,4 @@
-use failure::*;
+use anyhow::{bail, format_err, Error};
 
 use proxmox_backup::api2;
 use proxmox::api::*;

tests/worker-task-abort.rs

@@ -1,4 +1,4 @@
-use failure::*;
+use anyhow::{bail, Error};
 
 #[macro_use]
 extern crate proxmox_backup;