[SR-13534] html_normalization test hangs

[WowbaggersLiquidLunch]

Previous ID	SR-13534
Radar	None
Original Reporter	@WowbaggersLiquidLunch
Type	Bug

Environment

macOS 10.15.6 (19G2021) Xcode 12.0 beta 6 (12A8189n) cmake 3.18.2 Python 3.8.5 sccache 0.2.13 (with 50 GB cache set in `~/.bash_profile`)

Additional Detail from JIRA

| | | |------------------|-----------------| |Votes | 0 | |Component/s | | |Labels | Bug | |Assignee | interfere (JIRA) | |Priority | Medium | md5: 0c5a7e7ff14aed4325d800e0d47cafff

Issue Description:

The repository is freshly cloned via HTTPS.

On master branch, he project builds successfully with:

utils/build-script --skip-build-benchmarks --skip-ios --skip-watchos --skip-tvos --swift-darwin-supported-archs "x86_64" --cmake-c-launcher="$(which sccache)" --cmake-cxx-launcher="$(which sccache)" --release-debuginfo --test --xcode

Then runs tests from build/Xcode-RelWithDebInfoAssert/cmark-macosx-x86_64 automatically. The first test api_test passes, and the second test html_normalization hangs.

    Start 1: api_test
1/9 Test #​1: api_test .........................   Passed    0.01 sec
    Start 2: html_normalization

^ Note that the output has an empty new line after "Start 2: html_normalization".

In the terminal, the spinning progress indicator disappears a few seconds after the output above.

Git hashes of all repositories being tracked:

$ utils/update-checkout --dump-hashes
{
    "https-clone-pattern": "https://github.com/%s.git", 
    "ssh-clone-pattern": "git@github.com:%s.git", 
    "repos": {
        "sourcekit-lsp": {
            "remote": {
                "id": "apple/sourcekit-lsp"
            }
        }, 
        "indexstore-db": {
            "remote": {
                "id": "apple/indexstore-db"
            }
        }, 
        "llbuild": {
            "remote": {
                "id": "apple/swift-llbuild"
            }
        }, 
        "swift-xcode-playground-support": {
            "remote": {
                "id": "apple/swift-xcode-playground-support"
            }
        }, 
        "swift-syntax": {
            "remote": {
                "id": "apple/swift-syntax"
            }
        }, 
        "swift-corelibs-xctest": {
            "remote": {
                "id": "apple/swift-corelibs-xctest"
            }
        }, 
        "swiftpm": {
            "remote": {
                "id": "apple/swift-package-manager"
            }
        }, 
        "swift-tools-support-core": {
            "remote": {
                "id": "apple/swift-tools-support-core"
            }
        }, 
        "cmake": {
            "platforms": [
                "Linux"
            ], 
            "remote": {
                "id": "KitWare/CMake"
            }
        }, 
        "swift-driver": {
            "remote": {
                "id": "apple/swift-driver"
            }
        }, 
        "yams": {
            "remote": {
                "id": "jpsim/Yams"
            }
        }, 
        "icu": {
            "platforms": [
                "Linux"
            ], 
            "remote": {
                "id": "unicode-org/icu"
            }
        }, 
        "swift-corelibs-foundation": {
            "remote": {
                "id": "apple/swift-corelibs-foundation"
            }
        }, 
        "llvm-project": {
            "remote": {
                "id": "apple/llvm-project"
            }
        }, 
        "swift-argument-parser": {
            "remote": {
                "id": "apple/swift-argument-parser"
            }
        }, 
        "ninja": {
            "remote": {
                "id": "ninja-build/ninja"
            }
        }, 
        "swift-integration-tests": {
            "remote": {
                "id": "apple/swift-integration-tests"
            }
        }, 
        "swift": {
            "remote": {
                "id": "apple/swift"
            }
        }, 
        "swift-stress-tester": {
            "remote": {
                "id": "apple/swift-stress-tester"
            }
        }, 
        "cmark": {
            "remote": {
                "id": "apple/swift-cmark"
            }
        }, 
        "swift-format": {
            "remote": {
                "id": "apple/swift-format"
            }
        }, 
        "swift-corelibs-libdispatch": {
            "remote": {
                "id": "apple/swift-corelibs-libdispatch"
            }
        }
    }, 
    "branch-schemes": {
        "repro": {
            "repos": {
                "sourcekit-lsp": "eaea937ee4f5aea0a055bd5f682f31da0fa7f82f", 
                "swift-syntax": "3fbed3ad7cdd185827e2c2459d3f4542e1656310", 
                "llbuild": "93247a1ac52be0a312691281c9bcf7477749897e", 
                "swift-xcode-playground-support": "88043d7d320f92598efb39408c3f4b1903a4fff6", 
                "indexstore-db": "1f5bbb0c443b964ce9cc4ba05b3caebbab5e34cb", 
                "swift-corelibs-xctest": "0bd9e7673c078e7c0f7217f854749526fa5e9d96", 
                "swiftpm": "7b06638ef7b82860d728106b702a9dee1b0e9964", 
                "swift-tools-support-core": "fb8e160e3860c49286648a8981614e280d8cb0f4", 
                "cmake": "skip", 
                "swift-driver": "a065fa94020950236cffddc636cefa93c6c9dd1c", 
                "yams": "81a65c4069c28011ee432f2858ba0de49b086677", 
                "icu": "skip", 
                "swift-corelibs-foundation": "807e4156ccea51677fd40ee201c5f0b7853302b2", 
                "llvm-project": "bb9fdf48dff8135559726ae34c0a72b03529cb8e", 
                "swift-argument-parser": "15351c1cd009eba0b6e438bfef55ea9847a8dc4a", 
                "ninja": "a1f879b29c9aafe6a2bc0ba885701f8f4f19f772", 
                "swift-integration-tests": "3ceb61d33ea8885938eace0add830d143a3059cd", 
                "swift": "f9c70b4044d1c69b425502c69f957201fb52c226", 
                "swift-stress-tester": "4d8f8a790d32a3ced310c6b68c46ca8e6f71f52c", 
                "cmark": "9c8096a23f44794bde297452d87c455fc4f76d42", 
                "swift-format": "4af1af9a0bae7ffef0bf0f604d61346d23f92a7b", 
                "swift-corelibs-libdispatch": "f13ea5dcc055e5d2d7c02e90d8c9907ca9dc72e1"
            }, 
            "aliases": [
                "repro"
            ]
        }
    }

[typesanitizer]

Could you specify what hashes you are using? You can shared the output for utils/update-checkout --dump-hashes.

In the meantime, I think you could use --skip-test-cmark to work around this issue.

[WowbaggersLiquidLunch]

I just added the hashes in the issue's description.

[swift-ci]

Comment by Alexey Komnin (JIRA)

This issue in CTest might cause this hang.

[swift-ci]

Comment by Alexey Komnin (JIRA)

Opened a PR with fix - https://github.com/apple/swift-cmark/pull/22
theindigamer (JIRA User) could you please review? Thanks.