[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (master) #3133

Report

[FAILURE] oss-swift-incremental-RA-linux-ubuntu-16_04 [#3133]

Build URL:
https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04/3133/
Project:
oss-swift-incremental-RA-linux-ubuntu-16_04
Date of build:
Mon, 12 Mar 2018 23:55:21 -0500
Build duration:
1 hr 35 min

Identified problems:

  • Timeout: This build was marked as FAIL because it timed out.

Changes

  • Commit 0223daec0fc63d98f88370e3d0e8f68713126337 by spestov:
    stdlib: ClosedRange.Index should be fixed-layout

    • edit: stdlib/public/core/ClosedRange.swift
  • Commit de4f1f8a663c4181ab386b296993629e63660a6c by spestov:
    Re-enable resilience for stdlib and overlays

    • edit: utils/build-script-impl

Build timed out (after 45 minutes). Marking the build as failed.
This hasn’t occurred in any subsequent builds.

-Andy

Around the time of the recent LLVM merge we’ve started seeing sporadic timeouts on a couple of the stdlib tests. I don’t think it was related to resilience (it was also re-enabled at around the same time) but I could be wrong. In any case I haven’t been able to reproduce it locally. Could be a miscompile in LLVM or SIL optimizer, or we’re relying on some UB that newer LLVM optimizes differently?

Slava

If you see this failing anywhere else, please make a note in this radar:

rdar://problem/38430428 Swift CI: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (master) - build timeout
That might help narrow down the problem.

-Andy