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Give a better error for cargo check on libstd itself #79021

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Give a better error for cargo check on libstd itself #79021

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1 change: 1 addition & 0 deletions rust-toolchain
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
use x.py instead: https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html
5 changes: 4 additions & 1 deletion src/bootstrap/bootstrap.py
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Expand Up @@ -193,7 +193,10 @@ def default_build_triple(verbose):
# install, use their preference. This fixes most issues with Windows builds
# being detected as GNU instead of MSVC.
try:
version = subprocess.check_output(["rustc", "--version", "--verbose"])
# https://stackoverflow.com/questions/48333999
fs_root = os.path.abspath('.').split(os.path.sep)[0]+os.path.sep
version = subprocess.check_output(["rustc", "--version", "--verbose"],
cwd=fs_root)
host = next(x for x in version.split('\n') if x.startswith("host: "))
triple = host.split("host: ")[1]
if verbose:
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