This PR changes valuable-serde's recording of dyn Error values to
record the error as a serde struct with message and source fields.
This way, we can serialize errors with source chains more nicely.
When the backtrace support for std::error::Error is stable, we could
also record backtraces as a field. We could even consider adding a build
script to detect the nightly compiler and conditionally enable a cfg
for backtrace support, but that seems better left to a follow-up.
This PR changes
valuable-serde's recording ofdyn Errorvalues to record the error as aserdestruct withmessageandsourcefields. This way, we can serialize errors with source chains more nicely.When the backtrace support for
std::error::Erroris stable, we could also record backtraces as a field. We could even consider adding a build script to detect the nightly compiler and conditionally enable acfgfor backtrace support, but that seems better left to a follow-up.