assertion failed: !value.has_escaping_bound_vars()

[kornelski]

thread 'rustc' panicked at 'assertion failed: !value.has_escaping_bound_vars()', /rustc/027187094ee05011d6602f5742f550851ccc7fd6/compiler/rustc_middle/src/ty/sty.rs:968:9

To reproduce (using 57f2b1f):

git clone https://github.com/3Hren/msgpack-rust
cd msgpack-rust/rmp-serde
git checkout bafaed16800adc75871b6bab00b103baad9bfdee
cargo +nightly-2021-07-23 semver

[conradoplg]

I got the exact same issue while comparing the zebra-chain crate from https://github.com/ZcashFoundation/zebra/ between main and the v1.0.0-alpha.16 tag (using local folders).