CI Reliability 2021-09-19

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
shell

Research direction

Begin with the linked Jenkins jobs and console examples, comparing the reported JENKINS_FAILURE, BUILD_FAILURE, and JS_TEST_FAILURE entries across their first and last CI runs. The issue does not name a repository file, test entry point, or requested change, so completion criteria are not defined beyond identifying and addressing the recurring CI failures.

Written by the indexing model from the issue text.

Description

Failures in node-test-pull-request/39893 to node-test-pull-request/39990 that failed more than 2 PRs
(Generated with ncu-ci walk pr --stats=true --markdown /home/runner/work/reliability/reliability/results.md)

UTC Time RUNNING SUCCESS UNSTABLE ABORTED FAILURE Green Rate
2021-09-19 00:02 0 24 13 6 57 25.53%
Jenkins Failure
Reason Backing channel 'JNLP4-connect connection from ... is disconnected.
Type JENKINS_FAILURE
Failed PR 6 (https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/40013/, https://github.com/nodejs/node/pull/40061/, https://github.com/nodejs/node/pull/40082/, https://github.com/nodejs/node/pull/40108/, https://github.com/nodejs/node/pull/39945/)
Appeared test-digitalocean-fedora32-x64-1, test-osuosl-aix72-ppc64_be-3, test-osuosl-aix72-ppc64_be-2
First CI https://ci.nodejs.org/job/node-test-pull-request/39918/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39982/
Example
java.io.IOException: Backing channel 'JNLP4-connect connection from 159.203.117.50/159.203.117.50:40046' is disconnected.
	at hudson.remoting.RemoteInvocationHandler.channelOrFail(RemoteInvocationHandler.java:216)
	at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:286)
	at com.sun.proxy.$Proxy98.isAlive(Unknown Source)
	at hudson.Launcher$RemoteLauncher$ProcImpl.isAlive(Launcher.java:1211)
	at hudson.Launcher$RemoteLauncher$ProcImpl.join(Launcher.java:1203)

Reason Build timed out (after 5 minutes). Marking the build as failed.
Type JENKINS_FAILURE
Failed PR 3 (https://github.com/nodejs/node/pull/40042/, https://github.com/nodejs/node/pull/40063/, https://github.com/nodejs/node/pull/40084/)
Appeared test-ibm-rhel7-s390x-1, test-ibm-rhel7-s390x-3
First CI https://ci.nodejs.org/job/node-test-pull-request/39973/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39988/
Example
Build timed out (after 5 minutes). Marking the build as failed.

Reason Build timed out (after 60 minutes). Marking the build as failed.
Type JENKINS_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/39283/, https://github.com/nodejs/node/pull/40090/)
Appeared test-softlayer-ubi81_container-x64-1
First CI https://ci.nodejs.org/job/node-test-pull-request/39893/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39990/
Example
Build timed out (after 60 minutes). Marking the build as failed.

Build Failure
Reason ERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error?
Type BUILD_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/39283/, https://github.com/nodejs/node/pull/38807/)
Appeared test-joyent-smartos18-x64-3, test-digitalocean-freebsd11-x64-1, test-equinix-centos7_container-arm64-1, test-equinix-ubuntu1804_sharedlibs_container-arm64-1, test-equinix-ubuntu2004_sharedlibs_container-arm64-1, test-osuosl-aix72-ppc64_be-3
First CI https://ci.nodejs.org/job/node-test-pull-request/39893/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39926/
Example
ERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error?
Collecting metadata...
Metadata collection done.
Notifying upstream projects of job completion
Finished: FAILURE

Reason ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error?
Type BUILD_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/39283/, https://github.com/nodejs/node/pull/40084/)
Appeared test-requireio_svincent-debian10-armv7l_pi2-2, test-ibm-rhel7-s390x-3
First CI https://ci.nodejs.org/job/node-test-pull-request/39893/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39925/
Example
ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error?
[PostBuildScript] - [INFO] Executing post build scripts.
[node-test-binary-arm] $ /bin/bash -ex /tmp/jenkins3797891843757520560.sh
+ '[' -d .git ']'
+ git clean -fdx

Reason Failed to trigger node-test-commit
Type BUILD_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/39944/)
Appeared test-packetnet-ubuntu1804-x64-2
First CI https://ci.nodejs.org/job/node-test-pull-request/39916/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39933/
Example
Failed to trigger node-test-commit

Reason fatal error: ld terminated with signal 9 [Killed]
Type BUILD_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/40022/, https://github.com/nodejs/node/pull/40117/)
Appeared test-digitalocean-ubuntu1804_sharedlibs_container-x64-8, test-digitalocean-ubuntu1804_sharedlibs_container-x64-2
First CI https://ci.nodejs.org/job/node-test-pull-request/39953/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39954/
Example
fatal error: ld terminated with signal 9 [Killed]

JSTest Failure
Reason wpt/test-user-timing
Type JS_TEST_FAILURE
Failed PR 13 (https://github.com/nodejs/node/pull/40055/, https://github.com/nodejs/node/pull/39949/, https://github.com/nodejs/node/pull/39991/, https://github.com/nodejs/node/pull/40069/, https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/40060/, https://github.com/nodejs/node/pull/39944/, https://github.com/nodejs/node/pull/38512/, https://github.com/nodejs/node/pull/40101/, https://github.com/nodejs/node/pull/40117/, https://github.com/nodejs/node/pull/40063/, https://github.com/nodejs/node/pull/39945/, https://github.com/nodejs/node/pull/40135/)
Appeared test-requireio_davglass-debian10-arm64_pi3-1, test-requireio_ceejbot-debian10-armv7l_pi2-1, test-requireio_mininodes-debian10-armv7l_pi2-1, test-requireio_piccoloaiutante-debian10-arm64_pi3-1, test-requireio_joeyvandijk-debian10-armv7l_pi2-2, test-digitalocean-freebsd11-x64-2, test-requireio_rvagg-debian10-armv7l_pi2-1, test-softlayer-ubuntu1804_sharedlibs_container-x64-2, test-requireio_williamkapke-debian10-arm64_pi3-1, test-orka-macos10.15-x64-2
First CI https://ci.nodejs.org/job/node-test-pull-request/39894/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39987/
Example
not ok 840 wpt/test-user-timing
  ---
  duration_ms: 6.62
  severity: fail
  exitcode: 1
  stack: |-
    ---- idlharness.any.js ----
    [SKIPPED] idlharness cannot recognize Node.js environment
    ---- invoke_with_timing_attributes.worker.js ----
    [SKIPPED] importScripts not supported
    ---- performance-measure-invalid.worker.js ----
    [SKIPPED] importScripts not supported
    ---- buffered-flag.any.js ----
    [PASS] PerformanceObserver with buffered flag sees previous marks
    ---- buffered-flag.any.js ----
    [PASS] PerformanceObserver with buffered flag sees previous measures
    ---- case-sensitivity.any.js ----
    [PASS] getEntriesByType values are case sensitive
    ---- clear_all_marks.any.js ----
    [PASS] Clearing all marks remove all of them.
    ---- clear_all_measures.any.js ----
    [PASS] Clearing all marks remove all of them.
    ---- clear_non_existent_measure.any.js ----
    [PASS] Clearing a non-existent measure doesn't affect existing measures
    ---- clear_one_mark.any.js --...

Reason parallel/test-dgram-udp6-link-local-address
Type JS_TEST_FAILURE
Failed PR 5 (https://github.com/nodejs/node/pull/40084/, https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/40013/, https://github.com/nodejs/node/pull/39944/, https://github.com/nodejs/node/pull/40082/)
Appeared test-msft-win10-arm64-2
First CI https://ci.nodejs.org/job/node-test-pull-request/39909/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39937/
Example
not ok 162 parallel/test-dgram-udp6-link-local-address
  ---
  duration_ms: 0.503
  severity: fail
  exitcode: 1
  stack: |-
    events.js:377
          throw er; // Unhandled 'error' event
          ^
    
    Error: getaddrinfo ENOTFOUND fe80::2c4b:5622:4f90:839%Ethernet 2
        at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:69:26)
    Emitted 'error' event on Socket instance at:
        at GetAddrInfoReqWrap.callback (dgram.js:326:12)
        at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:69:17) {
      errno: -3008,
      code: 'ENOTFOUND',
      syscall: 'getaddrinfo',
      hostname: 'fe80::2c4b:5622:4f90:839%Ethernet 2'
    }
  ...


Reason parallel/test-http2-cancel-while-client-reading
Type JS_TEST_FAILURE
Failed PR 5 (https://github.com/nodejs/node/pull/40055/, https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/40108/, https://github.com/nodejs/node/pull/40131/, https://github.com/nodejs/node/pull/40090/)
Appeared test-nearform-macos10.15-x64-3, test-orka-macos10.15-x64-2, test-orka-macos10.14-x64-1
First CI https://ci.nodejs.org/job/node-test-pull-request/39902/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39969/
Example
not ok 1185 parallel/test-http2-cancel-while-client-reading
  ---
  duration_ms: 0.134
  severity: fail
  exitcode: 1
  stack: |-
    node:events:368
          throw er; // Unhandled 'error' event
          ^
    
    Error: read ECONNRESET
        at TLSWrap.onStreamRead (node:internal/stream_base_commons:220:20)
    Emitted 'error' event on ServerHttp2Stream instance at:
        at emitErrorNT (node:internal/streams/destroy:164:8)
        at emitErrorCloseNT (node:internal/streams/destroy:129:3)
        at processTicksAndRejections (node:internal/process/task_queues:83:21) {
      errno: -54,
      code: 'ECONNRESET',
      syscall: 'read'
    }
    
    Node.js v17.0.0-pre
  ...


Reason parallel/test-http2-pipe-named-pipe
Type JS_TEST_FAILURE
Failed PR 5 (https://github.com/nodejs/node/pull/39949/, https://github.com/nodejs/node/pull/39991/, https://github.com/nodejs/node/pull/39944/, https://github.com/nodejs/node/pull/40082/, https://github.com/nodejs/node/pull/40108/)
Appeared test-macstadium-macos11.0-arm64-3, test-nearform-macos11.0-arm64-1, test-macstadium-macos11.0-arm64-4
First CI https://ci.nodejs.org/job/node-test-pull-request/39895/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39945/
Example
not ok 1317 parallel/test-http2-pipe-named-pipe
  ---
  duration_ms: 0.73
  severity: fail
  exitcode: 1
  stack: |-
    node:assert:123
      throw new AssertionError(obj);
      ^
    
    AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
    
    139837 !== 139244
    
        at WriteStream.<anonymous> (/Users/iojs/build/workspace/node-test-commit-osx-arm/nodes/osx11/test/parallel/test-http2-pipe-named-pipe.js:26:12)
        at WriteStream.emit (node:events:406:35)
        at finish (node:internal/streams/writable:751:10)
        at processTicksAndRejections (node:internal/process/task_queues:83:21) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: 139837,
      expected: 139244,
      operator: 'strictEqual'
    }
    
    Node.js v17.0.0-pre
  ...


Reason parallel/test-repl-sigint-nested-eval
Type JS_TEST_FAILURE
Failed PR 4 (https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/40093/, https://github.com/nodejs/node/pull/40022/, https://github.com/nodejs/node/pull/40084/)
Appeared test-osuosl-centos7-ppc64_le-4, test-softlayer-ubuntu1804_sharedlibs_container-x64-3, test-digitalocean-ubuntu1804_sharedlibs_container-x64-8, test-orka-macos10.14-x64-2
First CI https://ci.nodejs.org/job/node-test-pull-request/39919/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39988/
Example
not ok 2007 parallel/test-repl-sigint-nested-eval
  ---
  duration_ms: 0.218
  severity: fail
  exitcode: 1
  stack: |-
    Stacktrace:
       ptr1=0x3e909e702d49
        ptr2=(nil)
        ptr3=(nil)
        ptr4=(nil)
        failure_message_object=0x3fffd2a13b40
    
    ==== JS stack trace =========================================
    
        0: ExitFrame [pc: 0x1162b100]
        1: StubFrame [pc: 0x116e37ec]
    Security context: 0x3f11448ac061 <JSGlobalObject>
        2: _fatalException [0x3f1144889839] [node:internal/process/execution:151] [bytecode=0x69150aa6221 offset=13](this=0x3f1144883d29 <process map = 0xd23c5e36811>,0x3e909e702d49 <Odd Oddball: termination_exception>,0x3e909e702769 <false>)
        3: InternalFrame [pc: 0x1158f734]
        4: EntryFrame [pc: 0x1158f10c]
        5: builtin exit frame: evaluate(this=0x0925b6cdb789 <ModuleWrap map = 0xd23c5e4d449>,0x0925b6cdb789 <ModuleWrap map = 0xd23c5e4d449>,-1,0x3e909e702769 <false>)
    
        6: getESMFacade [0x3f11448d84a9] [node:internal...

Reason pummel/test-crypto-timing-safe-equal-benchmarks
Type JS_TEST_FAILURE
Failed PR 4 (https://github.com/nodejs/node/pull/39977/, https://github.com/nodejs/node/pull/40083/, https://github.com/nodejs/node/pull/37468/, https://github.com/nodejs/node/pull/40084/)
Appeared test-ibm-rhel7-s390x-3, test-equinix-centos7_container-arm64-1
First CI https://ci.nodejs.org/job/node-test-pull-request/39897/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39922/
Example
not ok 3128 pummel/test-crypto-timing-safe-equal-benchmarks
  ---
  duration_ms: 1.911
  severity: fail
  exitcode: 1
  stack: |-
    node:assert:400
        throw err;
        ^
    
    AssertionError [ERR_ASSERTION]: timingSafeEqual should not leak information from its execution time (t=-4.776466294638558)
        at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-linuxone/nodes/rhel7-s390x/test/pummel/test-crypto-timing-safe-equal-benchmarks.js:109:1)
        at Module._compile (node:internal/modules/cjs/loader:1101:14)
        at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
        at Module.load (node:internal/modules/cjs/loader:981:32)
        at Function.Module._load (node:internal/modules/cjs/loader:822:12)
        at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:79:12)
        at node:internal/main/run_main_module:17:47 {
      generatedMessage: false,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
   ...

Reason parallel/test-child-process-fork-closed-channel-segfault
Type JS_TEST_FAILURE
Failed PR 3 (https://github.com/nodejs/node/pull/39949/, https://github.com/nodejs/node/pull/40013/, https://github.com/nodejs/node/pull/40063/)
Appeared test-requireio_rvagg-debian10-armv7l_pi2-1, test-requireio_williamkapke-debian10-arm64_pi3-1, test-requireio_ceejbot-debian10-armv7l_pi2-1
First CI https://ci.nodejs.org/job/node-test-pull-request/39900/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39978/
Example
not ok 98 parallel/test-child-process-fork-closed-channel-segfault
  ---
  duration_ms: 4.480
  severity: fail
  exitcode: 1
  stack: |-
    /home/iojs/build/workspace/node-test-binary-arm/test/parallel/test-child-process-fork-closed-channel-segfault.js:83
                throw err;
                ^
    
    Error: write EPIPE
        at ChildProcess.target._send (node:internal/child_process:844:20)
        at ChildProcess.<anonymous> (node:internal/child_process:665:16)
        at ChildProcess.emit (node:events:402:35)
        at emit (node:internal/child_process:915:12)
        at processTicksAndRejections (node:internal/process/task_queues:84:21) {
      errno: -32,
      code: 'EPIPE',
      syscall: 'write'
    }
    
    Node.js v17.0.0-pre
  ...


Reason parallel/test-crypto-keygen
Type JS_TEST_FAILURE
Failed PR 3 (https://github.com/nodejs/node/pull/40084/, https://github.com/nodejs/node/pull/40093/, https://github.com/nodejs/node/pull/40082/)
Appeared test-rackspace-win2012r2_vs2013-x64-1, test-softlayer-ubuntu1804_sharedlibs_container-x64-4, test-rackspace-win2012r2_vs2019-x64-4
First CI https://ci.nodejs.org/job/node-test-pull-request/39909/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39937/
Example
not ok 772 parallel/test-crypto-keygen
  ---
  duration_ms: 120.62
  severity: fail
  exitcode: 1
  stack: |-
    timeout
  ...


Reason parallel/test-child-process-pipe-dataflow
Type JS_TEST_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/40084/, https://github.com/nodejs/node/pull/37468/)
Appeared test-azure_msft-win2016_vs2017-x64-4
First CI https://ci.nodejs.org/job/node-test-pull-request/39909/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39920/
Example
not ok 81 parallel/test-child-process-pipe-dataflow
  ---
  duration_ms: 0.905
  severity: fail
  exitcode: 1
  stack: |-
    assert.js:101
      throw new AssertionError(obj);
      ^
    
    AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
    
    '0' !== '1048577'
    
        at Socket.<anonymous> (C:\workspace\node-test-binary-windows-js-suites\node\test\parallel\test-child-process-pipe-dataflow.js:66:12)
        at Socket.<anonymous> (C:\workspace\node-test-binary-windows-js-suites\node\test\common\index.js:361:15)
        at Socket.emit (events.js:314:20)
        at addChunk (_stream_readable.js:297:12)
        at readableAddChunk (_stream_readable.js:272:9)
        at Socket.Readable.push (_stream_readable.js:213:10)
        at Pipe.onStreamRead (internal/stream_base_commons.js:188:23) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: '0',
      expected: '1048577',
      operator: 'strictEqual'
    }
  ...


Reason sequential/test-cpu-prof-dir-and-name
Type JS_TEST_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/39892/, https://github.com/nodejs/node/pull/40131/)
Appeared test-osuosl-aix72-ppc64_be-3, test-nearform-macos10.15-x64-3
First CI https://ci.nodejs.org/job/node-test-pull-request/39949/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39984/
Example
not ok 3385 sequential/test-cpu-prof-dir-and-name
  ---
  duration_ms: 0.178
  severity: fail
  exitcode: 1
  stack: |-
    /home/iojs/build/workspace/node-test-commit-aix/nodes/aix72-ppc64/test/sequential/test-cpu-prof-dir-and-name.js:40
        console.log(output.stderr.toString());
                                  ^
    
    TypeError: Cannot read properties of null (reading 'toString')
        at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix72-ppc64/test/sequential/test-cpu-prof-dir-and-name.js:40:31)
        at Module._compile (node:internal/modules/cjs/loader:1101:14)
        at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
        at Module.load (node:internal/modules/cjs/loader:981:32)
        at Function.Module._load (node:internal/modules/cjs/loader:822:12)
        at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
        at node:internal/main/run_main_module:17:47
    
    Node.js v17.0.0-pre
  ...


Reason sequential/test-worker-prof
Type JS_TEST_FAILURE
Failed PR 2 (https://github.com/nodejs/node/pull/40108/, https://github.com/nodejs/node/pull/40131/)
Appeared test-osuosl-aix72-ppc64_be-3, test-nearform-macos11.0-arm64-1
First CI https://ci.nodejs.org/job/node-test-pull-request/39943/
Last CI https://ci.nodejs.org/job/node-test-pull-request/39984/
Example
not ok 3514 sequential/test-worker-prof
  ---
  duration_ms: 0.175
  severity: fail
  exitcode: 1
  stack: |-
    /home/iojs/build/workspace/node-test-commit-aix/nodes/aix72-ppc64/test/sequential/test-worker-prof.js:56
      assert.strictEqual(spawnResult.stderr.toString(), '',
                                            ^
    
    TypeError: Cannot read properties of null (reading 'toString')
        at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix72-ppc64/test/sequential/test-worker-prof.js:56:41)
        at Module._compile (node:internal/modules/cjs/loader:1101:14)
        at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
        at Module.load (node:internal/modules/cjs/loader:981:32)
        at Function.Module._load (node:internal/modules/cjs/loader:822:12)
        at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
        at node:internal/main/run_main_module:17:47
    
    Node.js v17.0.0-pre
  ...


Progress
  • Backing channel 'JNLP4-connect connection from ... is disconnected. (6)
  • Build timed out (after 5 minutes). Marking the build as failed. (3)
  • Build timed out (after 60 minutes). Marking the build as failed. (2)
  • ERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error? (2)
  • ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error? (2)
  • Failed to trigger node-test-commit (2)
  • fatal error: ld terminated with signal 9 [Killed] (2)
  • wpt/test-user-timing (13)
  • parallel/test-dgram-udp6-link-local-address (5)
  • parallel/test-http2-cancel-while-client-reading (5)
  • parallel/test-http2-pipe-named-pipe (5)
  • parallel/test-repl-sigint-nested-eval (4)
  • pummel/test-crypto-timing-safe-equal-benchmarks (4)
  • parallel/test-child-process-fork-closed-channel-segfault (3)
  • parallel/test-crypto-keygen (3)
  • parallel/test-child-process-pipe-dataflow (2)
  • sequential/test-cpu-prof-dir-and-name (2)
  • sequential/test-worker-prof (2)
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  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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