Andrew Gaspar e2cf6f5b1b Improvements to Rust's Installation (#15395) ... * Add sources and resources for each version of Rust * install bootstrapping compiler into stage * Add libgit2 * Install bootstrapping compiler correctly * implement full rust bootstrap * Remove support for Rust pre-1.14 Also add lots of comments * Support only Rust 1.17 and newer * Remove < 1.23 versions of Rust * Change the layout of rust_releases for maintainability * Remove LLVM variant * Address flake8 issues * Make libgit2 curl variant default False, conflict 0.28 and newer * Remove binutils dependency * Add ARM64 while we're at it * flake8 * use the 'python' routine rather than relying on the correct python to be picked up		2020-03-19 22:57:41 -05:00
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spack	Improvements to Rust's Installation (#15395)	2020-03-19 22:57:41 -05:00