Log panics when not attached to a pty

Hopefully this will give us better forensics if we panic in production.

zed/Cargo.toml

@@ -35,6 +35,7 @@ image = "0.23"
 lazy_static = "1.4.0"
 libc = "0.2"
 log = "0.4"
+log-panics = { version = "2.0", features = ["with-backtrace"] }
 num_cpus = "1.13.0"
 parking_lot = "0.11.1"
 postage = { version = "0.4.1", features = ["futures-traits"] }

zed/src/main.rs

@@ -90,6 +90,7 @@ fn init_logger() {
             .expect("could not open logfile");
         simplelog::WriteLogger::init(level, simplelog::Config::default(), log_file)
             .expect("could not initialize logger");
+        log_panics::init();
     }
 }