Match updated dependencies on CLI crate and remove unused import

tools/cli/Cargo.toml

@@ -18,11 +18,11 @@ linefeed = "0.1"
 log = "0.3"
 tempfile = "1.1"
 combine = "2.2.2"
-lazy_static = "0.2.2"
-error-chain = "0.8.1"
+lazy_static = "0.2"
+error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
 
 [dependencies.rusqlite]
-version = "0.11"
+version = "0.12"
 # System sqlite might be very old.
 features = ["bundled", "limits"]
 

tools/cli/src/mentat_cli/repl.rs

@@ -11,8 +11,6 @@
 use std::collections::HashMap;  
 use std::process;
 
-use error_chain::ChainedError;
-
 use mentat::query::QueryResults;
 use mentat_core::TypedValue;
 
@@ -135,7 +133,7 @@ impl Repl {
         let old_db_name = self.store.db_name.clone();
         match self.store.close() {
             Ok(_) => println!("Database {:?} closed", db_output_name(&old_db_name)),
-            Err(e) => println!("{}", e.display())
+            Err(e) => println!("{}", e)
         };
     }