1.0.21

• Support capturing backtraces inside of Arc from a From impl, which makes it possible for errors having backtraces to be clonable (#102)

  use std::backtrace::Backtrace;
  use std::sync::Arc;
  use thiserror::Error;
  
  #[derive(Error, Debug, Clone)]
  #[error("...")]
  pub struct ClonableErrorWithBacktrace {
      #[from]
      source: Inner,
      #[backtrace]
      backtrace: Arc<Backtrace>,
  }