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# derive(Error) for no_std environments
This is a fork of thiserror using the nightly only, experimental error_in_core
feature in no_std environments.
## Usage
```toml
// Cargo.toml
[dependencies]
thiserror = { version = "1.0", package = "thiserror-core", default-features = false }
```
```rust
// main.rs / lib.rs
#![no_std]
#![feature(error_in_core)]
```
## Differences between thiserror and thiserror-core
Differences are kept to a minimum and changes in thiserror master will be adopted by rebasing thiserror-core.
With the default `std` feature enabled, any functional difference between thiserror and thiserror-core is considered a bug.
As soon as the matching [PR](https://github.com/dtolnay/thiserror/pull/211) is merged or equivalent changes are adopted,
this crate will be updated to re-export thiserror.
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