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feat(trim-paths): honor workspace prefix override from env - #17349
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`__CARGO_RUSTC_BOOTSTRAP_WS_REMAP` will be added in the next commit in order to support rustc bootstrap's custom remap prefix.
`__CARGO_RUSTC_BOOTSTRAP_WS_REMAP` is an internal contract with rustc bootstrap, which needs workspace sources remapped to `/rustc/<sha>`. The `to` prefix participates in the fingerprint, since it is embedded in artifacts. See <rust-lang#17309>.
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Update cargo submodule 10 commits in b07e5a08651da80108eb65d7dc769ee04589f9bf..eb98b54bc9f3c74519f43d066cb3fd02ebc88df0 2026-08-07 21:51:16 +0000 to 2026-08-11 16:00:29 +0000 - feat(trim-paths): honor workspace prefix override from env (rust-lang/cargo#17349) - fix(clean): respect target with --doc (rust-lang/cargo#17322) - chore(renovate): Use a 3day minimum release age (rust-lang/cargo#17346) - test: Handle non-deterministic compilation order (rust-lang/cargo#17347) - docs(ref): Add missing config env variables (rust-lang/cargo#17345) - fix(trim-paths): workspace remap under -Zroot-dir (rust-lang/cargo#17337) - Fix funding link (rust-lang/cargo#17344) - fix(trim-paths): `/cargo/deps` fallback sources (rust-lang/cargo#17338) - doc: don't use mergeable info and json together (rust-lang/cargo#17336) - docs: document --output-format for cargo doc (rust-lang/cargo#17325)
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What does this PR try to resolve?
__CARGO_RUSTC_BOOTSTRAP_WS_REMAPis an internal contract with rustc bootstrap,
which needs workspace sources remapped to
/rustc/<sha>.The
toprefix participates in the fingerprint,since it is embedded in artifacts.
See #17309.
How to test and review this PR?
While we can make it a
-Zflag,__CARGO_DEFAULT_LIB_METADATArust-lang/rustCI without it being at least on one nightly.(Maybe there is a way, but I don't know how to set bootstrap cargo to a never built cargo)
Hence I chose the easiest way to implement.