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[SR-15734] Mysterious crash on Windows #58011

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swift-ci opened this issue Jan 15, 2022 · 4 comments
Closed

[SR-15734] Mysterious crash on Windows #58011

swift-ci opened this issue Jan 15, 2022 · 4 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.

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@swift-ci
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Previous ID SR-15734
Radar None
Original Reporter SDGGiesbrecht (JIRA User)
Type Bug
Environment

Swift 5.5.1, Windows

Additional Detail from JIRA
Votes 0
Component/s
Labels Bug
Assignee None
Priority Medium

md5: cccc9c64ff31d4f200fc35d3a085a312

Issue Description:

The following code crashes at runtime (only on Windows), but I am unable to narrow it down any further:

import XCTest
protocol UmbrellaProtocol: Hashable {}
extension UmbrellaProtocol {
  func exercise() {
    var hasher = Hasher()
    hash(into: &hasher)
  }
}
extension Int: UmbrellaProtocol {}
class DebuggingTests: XCTestCase {
  func testInt() {
    0.exercise()
  }
}

Aside from exit code 1, there is no indication of what goes wrong. It just gets to “Test Case 'DebuggingTests.testInt' started” and then abruptly dies.
@swift-ci
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Comment by Jeremy David Giesbrecht (JIRA)

@compnerd, have you encountered this?

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@SDGGiesbrecht
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I am not sure if the issue is completely gone in 5.6, but several specific instances of it no longer seem to be a problem.

@SDGGiesbrecht
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I am no longer able to reproduce this in any way. This issue can be closed.

@compnerd
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Closing this as indicated by the last comment.

@compnerd compnerd closed this as not planned Won't fix, can't repro, duplicate, stale Oct 22, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
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@compnerd @swift-ci @SDGGiesbrecht