Add regression test for #141738 #152402

AprilNEA · 2026-02-09T18:42:13Z

Add a regression test for ICE:unexpected DefKind for const alias to resolve to: Ctor(Struct, Const) #141738
Using a struct constructor (DefKind::Ctor(Struct, Const)) as an array repeat count with #![feature(min_generic_const_args)] used to ICE in const alias normalization
Fixed by MGCA: Const constructors support #150704, which added const constructor support for mGCA. This test covers the error path (struct ctor where usize is expected), which was not covered by the tests in MGCA: Const constructors support #150704

rustbot · 2026-02-09T18:42:21Z

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…mGCA Using a struct constructor (DefKind::Ctor(Struct, Const)) as an array repeat count with `#![feature(min_generic_const_args)]` used to trigger an ICE in const alias normalization. Add a regression test to ensure the compiler produces a proper type error instead of panicking.

rust-log-analyzer · 2026-02-09T19:05:15Z

The job aarch64-gnu-llvm-20-2 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

##[group]Runner Image Provisioner
Hosted Compute Agent
Version: 20260123.484
Commit: 6bd6555ca37d84114959e1c76d2c01448ff61c5d
Build Date: 2026-01-23T19:41:17Z
Worker ID: {37ab8a93-b329-4b49-92b8-242dd670b47e}
Azure Region: southcentralus
##[endgroup]
##[group]VM Image
- OS: Linux (arm64)
- Source: Partner
- Name: Ubuntu 24.04 by Arm Limited
---
REPOSITORY                                   TAG       IMAGE ID       CREATED       SIZE
ghcr.io/dependabot/dependabot-updater-core   latest    afc745c7535d   2 weeks ago   783MB
=> Removing docker images...
Deleted Images:
untagged: ghcr.io/dependabot/dependabot-updater-core:latest
untagged: ghcr.io/dependabot/dependabot-updater-core@sha256:faae3d3a1dedd24cde388bb506bbacc0f7ed1eae99ebac129af66acd8540c84a
deleted: sha256:afc745c7535da1bb12f92c273b9a7e9c52c3f12c5873714b2542da259c6d9769
deleted: sha256:64e147d5e54d9be8b8aa322e511cda02296eda4b8b8d063c6a314833aca50e29
deleted: sha256:5cba409bb463f4e7fa1a19f695450170422582c1bc7c0e934d893b4e5f558bc6
deleted: sha256:cddc6ebd344b0111eaab170ead1dfda24acdfe865ed8a12599a34d338fa8e28b
deleted: sha256:2412c3f334d79134573cd45e657fb6cc0abd75bef3881458b0d498d936545c8d
---
fmt check
fmt: checked 6694 files
tidy check

thread 'deps (.)' (3850) panicked at src/tools/tidy/src/deps.rs:654:24:
cmd.exec() failed with `cargo metadata` exited with an error:     Updating crates.io index
    Updating git repository `https://github.com/rust-lang/team`
warning: spurious network error (3 tries remaining): unexpected http status code: 500; class=Http (34)
warning: spurious network error (2 tries remaining): unexpected http status code: 500; class=Http (34)
warning: spurious network error (1 try remaining): unexpected http status code: 503; class=Http (34)
error: failed to get `rust_team_data` as a dependency of package `site v0.1.0 (/checkout/src/tools/rustc-perf/site)`

Caused by:
  failed to load source for dependency `rust_team_data`

Caused by:
  Unable to update https://github.com/rust-lang/team#a5260e76

Caused by:
  failed to clone into: /cargo/git/db/team-679b79b2e58466cd

Caused by:
  revision a5260e76d3aa894c64c56e6ddc8545b9a98043ec not found

Caused by:
---
   5: std::thread::scoped::scope::<rust_tidy::main::{closure#1}, ()>
   6: rust_tidy::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Bootstrap failed while executing `--stage 2 test --skip tests --skip coverage-map --skip coverage-run --skip library --skip tidyselftest`
Command `/checkout/obj/build/aarch64-unknown-linux-gnu/stage1-tools-bin/rust-tidy --root-path=/checkout --cargo-path=/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/cargo --output-dir=/checkout/obj/build --concurrency=4 --npm-path=yarn` failed with exit code 101
Created at: src/bootstrap/src/core/build_steps/tool.rs:1612:23
Executed at: src/bootstrap/src/core/build_steps/test.rs:1365:29

Command has failed. Rerun with -v to see more details.
Build completed unsuccessfully in 0:06:48
  local time: Mon Feb  9 18:59:28 UTC 2026
  network time: Mon, 09 Feb 2026 18:59:28 GMT
##[error]Process completed with exit code 1.
##[group]Run echo "disk usage:"

rust-log-analyzer · 2026-02-09T19:05:32Z

The job aarch64-gnu-llvm-20-2 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

##[group]Runner Image Provisioner
Hosted Compute Agent
Version: 20260123.484
Commit: 6bd6555ca37d84114959e1c76d2c01448ff61c5d
Build Date: 2026-01-23T19:41:17Z
Worker ID: {37ab8a93-b329-4b49-92b8-242dd670b47e}
Azure Region: southcentralus
##[endgroup]
##[group]VM Image
- OS: Linux (arm64)
- Source: Partner
- Name: Ubuntu 24.04 by Arm Limited
---
REPOSITORY                                   TAG       IMAGE ID       CREATED       SIZE
ghcr.io/dependabot/dependabot-updater-core   latest    afc745c7535d   2 weeks ago   783MB
=> Removing docker images...
Deleted Images:
untagged: ghcr.io/dependabot/dependabot-updater-core:latest
untagged: ghcr.io/dependabot/dependabot-updater-core@sha256:faae3d3a1dedd24cde388bb506bbacc0f7ed1eae99ebac129af66acd8540c84a
deleted: sha256:afc745c7535da1bb12f92c273b9a7e9c52c3f12c5873714b2542da259c6d9769
deleted: sha256:64e147d5e54d9be8b8aa322e511cda02296eda4b8b8d063c6a314833aca50e29
deleted: sha256:5cba409bb463f4e7fa1a19f695450170422582c1bc7c0e934d893b4e5f558bc6
deleted: sha256:cddc6ebd344b0111eaab170ead1dfda24acdfe865ed8a12599a34d338fa8e28b
deleted: sha256:2412c3f334d79134573cd45e657fb6cc0abd75bef3881458b0d498d936545c8d
---
fmt check
fmt: checked 6694 files
tidy check

thread 'deps (.)' (3850) panicked at src/tools/tidy/src/deps.rs:654:24:
cmd.exec() failed with `cargo metadata` exited with an error:     Updating crates.io index
    Updating git repository `https://github.com/rust-lang/team`
warning: spurious network error (3 tries remaining): unexpected http status code: 500; class=Http (34)
warning: spurious network error (2 tries remaining): unexpected http status code: 500; class=Http (34)
warning: spurious network error (1 try remaining): unexpected http status code: 503; class=Http (34)
error: failed to get `rust_team_data` as a dependency of package `site v0.1.0 (/checkout/src/tools/rustc-perf/site)`

Caused by:
  failed to load source for dependency `rust_team_data`

Caused by:
  Unable to update https://github.com/rust-lang/team#a5260e76

Caused by:
  failed to clone into: /cargo/git/db/team-679b79b2e58466cd

Caused by:
  revision a5260e76d3aa894c64c56e6ddc8545b9a98043ec not found

Caused by:
---
   5: std::thread::scoped::scope::<rust_tidy::main::{closure#1}, ()>
   6: rust_tidy::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Bootstrap failed while executing `--stage 2 test --skip tests --skip coverage-map --skip coverage-run --skip library --skip tidyselftest`
Command `/checkout/obj/build/aarch64-unknown-linux-gnu/stage1-tools-bin/rust-tidy --root-path=/checkout --cargo-path=/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/cargo --output-dir=/checkout/obj/build --concurrency=4 --npm-path=yarn` failed with exit code 101
Created at: src/bootstrap/src/core/build_steps/tool.rs:1612:23
Executed at: src/bootstrap/src/core/build_steps/test.rs:1365:29

Command has failed. Rerun with -v to see more details.
Build completed unsuccessfully in 0:06:48
  local time: Mon Feb  9 18:59:28 UTC 2026
  network time: Mon, 09 Feb 2026 18:59:28 GMT
##[error]Process completed with exit code 1.
##[group]Run echo "disk usage:"

rust-log-analyzer · 2026-02-09T19:05:48Z

The job aarch64-gnu-llvm-20-2 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

##[group]Runner Image Provisioner
Hosted Compute Agent
Version: 20260123.484
Commit: 6bd6555ca37d84114959e1c76d2c01448ff61c5d
Build Date: 2026-01-23T19:41:17Z
Worker ID: {37ab8a93-b329-4b49-92b8-242dd670b47e}
Azure Region: southcentralus
##[endgroup]
##[group]VM Image
- OS: Linux (arm64)
- Source: Partner
- Name: Ubuntu 24.04 by Arm Limited
---
REPOSITORY                                   TAG       IMAGE ID       CREATED       SIZE
ghcr.io/dependabot/dependabot-updater-core   latest    afc745c7535d   2 weeks ago   783MB
=> Removing docker images...
Deleted Images:
untagged: ghcr.io/dependabot/dependabot-updater-core:latest
untagged: ghcr.io/dependabot/dependabot-updater-core@sha256:faae3d3a1dedd24cde388bb506bbacc0f7ed1eae99ebac129af66acd8540c84a
deleted: sha256:afc745c7535da1bb12f92c273b9a7e9c52c3f12c5873714b2542da259c6d9769
deleted: sha256:64e147d5e54d9be8b8aa322e511cda02296eda4b8b8d063c6a314833aca50e29
deleted: sha256:5cba409bb463f4e7fa1a19f695450170422582c1bc7c0e934d893b4e5f558bc6
deleted: sha256:cddc6ebd344b0111eaab170ead1dfda24acdfe865ed8a12599a34d338fa8e28b
deleted: sha256:2412c3f334d79134573cd45e657fb6cc0abd75bef3881458b0d498d936545c8d
---
fmt check
fmt: checked 6694 files
tidy check

thread 'deps (.)' (3850) panicked at src/tools/tidy/src/deps.rs:654:24:
cmd.exec() failed with `cargo metadata` exited with an error:     Updating crates.io index
    Updating git repository `https://github.com/rust-lang/team`
warning: spurious network error (3 tries remaining): unexpected http status code: 500; class=Http (34)
warning: spurious network error (2 tries remaining): unexpected http status code: 500; class=Http (34)
warning: spurious network error (1 try remaining): unexpected http status code: 503; class=Http (34)
error: failed to get `rust_team_data` as a dependency of package `site v0.1.0 (/checkout/src/tools/rustc-perf/site)`

Caused by:
  failed to load source for dependency `rust_team_data`

Caused by:
  Unable to update https://github.com/rust-lang/team#a5260e76

Caused by:
  failed to clone into: /cargo/git/db/team-679b79b2e58466cd

Caused by:
  revision a5260e76d3aa894c64c56e6ddc8545b9a98043ec not found

Caused by:
---
   5: std::thread::scoped::scope::<rust_tidy::main::{closure#1}, ()>
   6: rust_tidy::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Bootstrap failed while executing `--stage 2 test --skip tests --skip coverage-map --skip coverage-run --skip library --skip tidyselftest`
Command `/checkout/obj/build/aarch64-unknown-linux-gnu/stage1-tools-bin/rust-tidy --root-path=/checkout --cargo-path=/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/cargo --output-dir=/checkout/obj/build --concurrency=4 --npm-path=yarn` failed with exit code 101
Created at: src/bootstrap/src/core/build_steps/tool.rs:1612:23
Executed at: src/bootstrap/src/core/build_steps/test.rs:1365:29

Command has failed. Rerun with -v to see more details.
Build completed unsuccessfully in 0:06:48
  local time: Mon Feb  9 18:59:28 UTC 2026
  network time: Mon, 09 Feb 2026 18:59:28 GMT
##[error]Process completed with exit code 1.
##[group]Run echo "disk usage:"

AprilNEA · 2026-02-09T19:25:19Z

@bors retry

rust-bors · 2026-02-09T19:25:23Z

@AprilNEA: 🔑 Insufficient privileges: not in review users

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Feb 9, 2026

rustbot assigned BoxyUwU Feb 9, 2026

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AprilNEA force-pushed the test/issue-141738-struct-ctor-array-len branch from 9cee865 to 3d0ca2c Compare February 9, 2026 18:46

retrigger CI

d5ef607

BoxyUwU closed this Feb 10, 2026

rustbot removed the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Feb 10, 2026

BoxyUwU reopened this Feb 10, 2026

rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Feb 10, 2026

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