rails message logging

lib/formatter/colored_formatter.rb

@@ -3,6 +3,7 @@ require 'rainbow'
 # ColoredFormatter outputs colored message according to severity
 class ColoredFormatter < Logger::Formatter
   def call(severity, _time, _program_name, message) # rubocop:disable Metrics/MethodLength
+    msg = message.is_a?(String) ? message : message.inspect
     tint = case severity
            when 'DEBUG'
              :darkgray
@@ -18,6 +19,6 @@ class ColoredFormatter < Logger::Formatter
            else
              raise "unknown severity #{severity}"
            end
-    "#{Rainbow('╞' + severity.ljust(5) + '╡').bg(:cyan).color(:darkgray)}╠   #{Rainbow(message).color(tint)}\n"
+    "#{Rainbow('╞' + severity.ljust(5) + '╡').bg(:cyan).color(:darkgray)}╠   #{Rainbow(msg).color(tint)}\n"
   end
 end