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rustup-init: --default-host is broken under cygwin

bug

Status: Open.

#4755 In rust-lang/rustup;

· abr-egn opened on Mar 16, 2026

Test on FreeBSD is failing due to tar entry kind 'GNUSparse' is not supported

bug

forwardedThis issue as been forwarded "upstream"This issue as been forwarded "upstream"

Status: Open.

#4751 In rust-lang/rustup;

· rami3l opened on Mar 15, 2026

CI on FreeBSD is failing due to SSH peer certificate or SSH remote key

forwardedThis issue as been forwarded "upstream"This issue as been forwarded "upstream"

not-rustupWhatever is described in this issue isn't Rustup's faultWhatever is described in this issue isn't Rustup's fault

Status: Open.

#4749 In rust-lang/rustup;

· rami3l opened on Mar 15, 2026

Rustup 1.29.0 fails to download in Wine due to platform verifier error

bug

forwardedThis issue as been forwarded "upstream"This issue as been forwarded "upstream"

Status: Open.

#4748 In rust-lang/rustup;

· A2va opened on Mar 14, 2026

Improve rustup updates performance by starting with a parallel check

A-concurrency

enhancement

Status: Open.

#4747 In rust-lang/rustup;

· FranciscoTGouveia opened on Mar 13, 2026

rustup-init creates a new settings.toml file then warns about it existing

enhancement

Status: Open.

#4744 In rust-lang/rustup;

· ChrisDenton opened on Mar 12, 2026

Introduce proper trunk/backport workflow

metaThis issue is related to project management.This issue is related to project management.

Status: Open.

#4738 In rust-lang/rustup;

· rami3l opened on Mar 4, 2026

Make the interaction between MultiProgress and other lines below it more robust

A-concurrency

enhancement

incompleteThe bug report does not have enough informationThe bug report does not have enough information

Status: Open.

#4737 In rust-lang/rustup;

· rami3l opened on Mar 3, 2026

New parallel download + install can easily leave a partially installed toolchain when downloads are interrupted

A-concurrency

Status: Open.

#4724 In rust-lang/rustup;

· steffahn opened on Feb 19, 2026

Make ~/.cargo/env more robust by always prepending the ~/.cargo.bin path

enhancement

Status: Open.

#4723 In rust-lang/rustup;

· discapes opened on Feb 16, 2026

Win11 min MSVC prerequisites rustup handbook not enough to make rustup-init.exe detect MSVC

bug

Status: Open.

#4699 In rust-lang/rustup;

· Archer6621 opened on Feb 2, 2026

Setting RUSTUP_HOME and CARGO_HOME before running rustup installation does not work in Windows

bug

Status: Open.

#4687 In rust-lang/rustup;

· temeipu-offical opened on Jan 24, 2026