Add support for cargo --config arguments#34
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This allows users to pass down custom config options to cargo. This could be used to do things like pointing cargo at a vendored directory tree for building a sysroot when isolated from the network.
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May 20, 2026
This allows us to do things like point cargo at a vendored directory to support offline builds of the sysroot. Note: this is blocked on RalfJung/rustc-build-sysroot#34 being landed and released in a build.
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As mentioned in rust-lang/miri#5051, I don't think this is the right approach. Instead we should use rust-lang/rust#156196 and check whether a |
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This allows users to pass down custom config options to cargo. This could be used to do things like pointing cargo at a vendored directory tree for building a sysroot when isolated from the network.