Rust licenses (#292)

* Add license specifier to all Cargo.toml files

Explicitly specify `license = "GPL-2.0-only"` in each Cargo.toml
file. The wording is from the SPX guidelines.

* Add shell script to check licenses of Rust projects

rust/check_licenses.sh automatically verifies all dependencies
for accidental usage of GPLv3. Since basically nobody in the
universe uses GPLv3, it tends not to do much.
This commit is contained in:
Herbert "TheBracket 2023-03-23 13:49:07 -05:00 committed by GitHub
parent c17d269ad6
commit a32949c76d
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