Build Logs

lampepfl/gears • 3.8.0-RC5:2025-12-31

Errors

Warnings

Total Lines

306

1##################################

2Clonning https://github.com/lampepfl/gears.git into /build/repo using revision v0.2.0

3##################################

4Note: switching to 'a4a6b721442ce1ad964376b759766d7846947daf'.

6You are in 'detached HEAD' state. You can look around, make experimental

7changes and commit them, and you can discard any commits you make in this

8state without impacting any branches by switching back to a branch.

10If you want to create a new branch to retain commits you create, you may

11do so (now or later) by using -c with the switch command. Example:

13 git switch -c <new-branch-name>

15Or undo this operation with:

17 git switch -

19Turn off this advice by setting config variable advice.detachedHead to false

21----

22Preparing build for 3.8.0-RC5

23Scala binary version found: 3.8

24Implicitly using source version 3.8

25Scala binary version found: 3.8

26Implicitly using source version 3.8

27Would try to apply common scalacOption (best-effort, sbt/mill only):

28Append: ,REQUIRE:-source:3.8

29Remove: ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

30----

31Starting build for 3.8.0-RC5

32Execute tests: true

33sbt project found:

34Sbt version 1.10.0 is not supported, minimal supported version is 1.11.5

35Enforcing usage of sbt in version 1.11.5

36No prepare script found for project lampepfl/gears

37##################################

38Scala version: 3.8.0-RC5

39Targets: ch.epfl.lamp%gears

40Project projectConfig: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"21"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":[],"sourcePatches":[]}

41##################################

42Using extra scalacOptions: ,REQUIRE:-source:3.8

43Filtering out scalacOptions: ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

44[sbt_options] declare -a sbt_options=()

45[process_args] java_version = '21'

46[copyRt] java9_rt = '/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_21/rt.jar'

47# Executing command line:

48java

49-Dfile.encoding=UTF-8

50-Dcommunitybuild.scala=3.8.0-RC5

51-Dcommunitybuild.project.dependencies.add=

52-Xmx7G

53-Xms4G

54-Xss8M

55-Dsbt.script=/root/.sdkman/candidates/sbt/current/bin/sbt

56-Dscala.ext.dirs=/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_21

57-jar

58/root/.sdkman/candidates/sbt/1.11.5/bin/sbt-launch.jar

59"setCrossScalaVersions 3.8.0-RC5"

60"++3.8.0-RC5 -v"

61"mapScalacOptions ",REQUIRE:-source:3.8,-Wconf:msg=can be rewritten automatically under:s" ",-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e""

62"set every credentials := Nil"

63"excludeLibraryDependency com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}"

64"removeScalacOptionsStartingWith -P:wartremover"

66moduleMappings

67"runBuild 3.8.0-RC5 """{"projects":{"exclude":[],"overrides":{}},"java":{"version":"21"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":[],"sourcePatches":[]}""" ch.epfl.lamp%gears"

69[info] welcome to sbt 1.11.5 (Eclipse Adoptium Java 21)

70[info] loading settings for project repo-build from akka.sbt, plugins.sbt...

71[info] loading project definition from /build/repo/project

72[info] compiling 2 Scala sources to /build/repo/project/target/scala-2.12/sbt-1.0/classes ...

73[info] Non-compiled module 'compiler-bridge_2.12' for Scala 2.12.20. Compiling...

74[info] Compilation completed in 8.268s.

75[info] done compiling

76[info] loading settings for project repo from build.sbt...

77[info] set current project to repo (in build file:/build/repo/)

78Execute setCrossScalaVersions: 3.8.0-RC5

79OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC5 in rootNative/crossScalaVersions

80OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC5 in rootJVM/crossScalaVersions

81OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC5 in repo/crossScalaVersions

82[info] set current project to repo (in build file:/build/repo/)

83[info] Setting Scala version to 3.8.0-RC5 on 3 projects.

84[info] Switching Scala version on:

85[info] * repo (3.8.0-RC5)

86[info] rootJVM (3.8.0-RC5)

87[info] rootNative (3.8.0-RC5)

88[info] Excluding projects:

89[info] Reapplying settings...

90[info] set current project to repo (in build file:/build/repo/)

91Execute mapScalacOptions: ,REQUIRE:-source:3.8,-Wconf:msg=can be rewritten automatically under:s ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

92[info] Reapplying settings...

93[info] set current project to repo (in build file:/build/repo/)

94[info] Defining Global / credentials, credentials and 1 others.

95[info] The new values will be used by Global / pgpSelectPassphrase, Global / pgpSigningKey and 14 others.

96[info] Run `last` for details.

97[info] Reapplying settings...

98[info] set current project to repo (in build file:/build/repo/)

99Execute excludeLibraryDependency: com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}

100[info] Reapplying settings...

101OpenCB::Failed to reapply settings in excludeLibraryDependency: Reference to undefined setting:

102

103 Global / allExcludeDependencies from Global / allExcludeDependencies (CommunityBuildPlugin.scala:331)

104 Did you mean rootJVM / allExcludeDependencies ?

105 , retry without global scopes

106[info] Reapplying settings...

107[info] set current project to repo (in build file:/build/repo/)

108Execute removeScalacOptionsStartingWith: -P:wartremover

109[info] Reapplying settings...

110[info] set current project to repo (in build file:/build/repo/)

111[success] Total time: 0 s, completed Dec 31, 2025, 9:34:04 PM

112Build config: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"21"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":[],"sourcePatches":[]}

113Parsed config: Success(ProjectBuildConfig(ProjectsConfig(List(),Map()),Full,List()))

114Starting build...

115Projects: Set(rootJVM)

116Starting build for ProjectRef(file:/build/repo/,rootJVM) (gears)... [0/1]

117OpenCB::Exclude Scala3 specific scalacOption `REQUIRE:-source:3.8` in Scala 2.12.20 module Global

118Compile scalacOptions: -Wconf:msg=can be rewritten automatically under:s, -source:3.8

119[info] compiling 21 Scala sources to /build/repo/jvm/target/scala-3.8.0-RC5/classes ...

120[warn] -- [E197] Potential Issue Warning: /build/repo/shared/src/main/scala/async/Listener.scala:53:8

121[warn] 53 | new Listener[T]:

122[warn] | ^

123[warn] | New anonymous class definition will be duplicated at each inline site

124[warn] |

125[warn] | longer explanation available when compiling with `-explain`

126[warn] there were 17 deprecation warnings; re-run with -deprecation for details

127[warn] two warnings found

128[info] done compiling

129[info] compiling 11 Scala sources to /build/repo/jvm/target/scala-3.8.0-RC5/test-classes ...

130[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/ChannelBehavior.scala:309:32

131[warn] 309 | a.readSource handle { case Right(v) =>

132[warn] | ^

133[warn] | match may not be exhaustive.

134[warn] |

135[warn] | It would fail on pattern case: Left(_)

136[warn] |

137[warn] | longer explanation available when compiling with `-explain`

138[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/ChannelBehavior.scala:312:36

139[warn] 312 | b.sendSource(10) handle { case Right(_) =>

140[warn] | ^

141[warn] | match may not be exhaustive.

142[warn] |

143[warn] | It would fail on pattern case: Left(_)

144[warn] |

145[warn] | longer explanation available when compiling with `-explain`

146[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/SourceBehavior.scala:134:43

147[warn] 134 | assertEquals(f.transformValuesWith({ case Success(i) => i + 1 }).awaitResult, 11)

148[warn] | ^

149[warn] | match may not be exhaustive.

150[warn] |

151[warn] | It would fail on pattern case: scala.util.Failure(_)

152[warn] |

153[warn] | longer explanation available when compiling with `-explain`

154[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/SourceBehavior.scala:136:43

155[warn] 136 | assertEquals(g.transformValuesWith({ case Failure(_) => 17 }).awaitResult, 17)

156[warn] | ^

157[warn] | match may not be exhaustive.

158[warn] |

159[warn] | It would fail on pattern case: scala.util.Success(_)

160[warn] |

161[warn] | longer explanation available when compiling with `-explain`

162[warn] -- [E092] Pattern Match Unchecked Warning: /build/repo/shared/src/test/scala/FutureBehavior.scala:184:13

163[warn] 184 | case _: Failure[CancellationException] => ()

164[warn] | ^

165[warn] |the type test for scala.util.Failure[java.util².concurrent.CancellationException] cannot be checked at runtime because its type arguments can't be determined from scala.util.Try[Int]

166[warn] |

167[warn] |where: util is a package in package scala

168[warn] | util² is a package in package java

169[warn] |

170[warn] | longer explanation available when compiling with `-explain`

171[warn] there were 33 deprecation warnings; re-run with -deprecation for details

172[warn] 6 warnings found

173[info] done compiling

174[warn] javaOptions will be ignored, fork is set to false

175RetryBehavior:

176 + Exponential backoff(2) 50ms, 5 times total schedule 0.789s

177 + UntilSuccess 150ms 0.602s

178 + UntilFailure 150ms 0.603s

179 + delay policies 0.007s

180TaskScheduleBehavior:

181 + Every 100ms, 3 times total schedule 0.246s

182 + Exponential backoff(2) 50ms, 5 times total schedule 0.754s

183 + Fibonacci backoff 10ms, 6 times total schedule 0.123s

184 + UntilSuccess 150ms 0.604s

185 + UntilFailure 150ms 0.603s

186true false

187ListenerBehavior:

188 + race two futures 0.003s

189 + lock two listeners 0.001s

190 + lock two listeners where one fails 0.002s

191 + lock two races 0.002s

192 + lock two races in reverse order 0.001s

193 + lock two nested races 0.002s

194 + lock two nested races in reverse order 0.001s

195 + race successful without wait 0.003s

196 + race successful with wait 0.007s

197 + race polling 0.001s

198 + race failed without wait 0.002s

199 + lockBoth of race with competing lock 0.001s

200 + conflicting locks 0.002s

201 + failing downstream listener is dropped in race 0.003s

202 + succeeding downstream listener is dropped in race 0.002s

203CancellationBehavior:

204 + no cancel 0.401s

205 + group cancel 0.001s

206 + link group 0.003s

207 + nested link group 0.002s

208 + link to already cancelled 0.503s

209 + link to already cancelled awaited 0.001s

210TimerBehavior:

211 + sleeping does sleep 0.217s

212 + timer does sleep 1.005s

213 + racing with a sleeping future 2.253s

214SchedulerBehavior:

215 + schedule cancellation works 1.003s

216 + schedule cancellation doesn't abort inner code 1.051s

217 + execute works 0.001s

218SourceBehavior:

219 + onComplete register after completion runs immediately 0.001s

220 + poll is asynchronous 0.001s

221 + onComplete is asynchronous 0.001s

222 + await is synchronous 0.351s

223 + sources wait on children sources when they block 0.146s

224 + sources do not wait on zombie sources (which are killed at the end of Async.Blocking) 0.002s

225 + poll() 0.104s

226 + onComplete() fires 0.201s

227 + dropped onComplete() listener does not fire 0.202s

228 + transform values with 0.001s

229 + all listeners in chain fire 0.152s

230 + either 0.402s

231 + source values 0.205s

232 + transformValuesWith unsubscribes 0.002s

2331

234FutureBehavior:

235 + Old test 0.015s

236 + Constant returns 0.002s

237 + Future.now returning 0.0s

238 + Constant future with timeout 0.052s

239 + or 0.006s

240 + orWithCancel of 2 futures 0.603s

241 + zip 0.002s

242 + result wraps exceptions 0.001s

243 + result wraps values 0.001s

244 + value propagates exceptions exceptions through futures 0.002s

245 + futures can be nested 0.023s

246 + future are cancelled via .interrupt() and not checking the flag in async 0.001s

247 + future should cancel its group when the main body is completed 1.502s

248 + zombie threads exist and run to completion after the Async.blocking barrier 0.302s

249==> i FutureBehavior.cancelled futures return the same constant CancellationException with no stack attached ignored 0.0s

250 + noninterruptible future immediate return 0.001s

251 + Noninterruptible future cannot be interrupted immediately but throws later 0.301s

252 + Promise can be cancelled 0.0s

253 + Promise can't be cancelled after completion 0.001s

254 + Future.withResolver cancel handler is run once 0.002s

255 + Future.withResolver cancel handler is not run after being completed 0.001s

256 + Future.withResolver is only completed after handler decides 0.002s

257 + Nesting of cancellations 0.401s

258 + future collector 1.002s

259 + mutable collector 2.002s

260 + future collection: awaitAll* 1.005s

261 + future collection: awaitFirst* 1.007s

262 + uninterruptible should continue even when Future is cancelled 0.007s

263JVMCancellationBehavior:

264 + no cancel -> timeout 5.001s

265ChannelBehavior:

266 + sending is blocking in SyncChannel 0.511s

267 + sending is nonblocking in empty BufferedChannel 0.502s

268 + sending is blocking in full BufferedChannel 0.501s

269 + read blocks until value is available in SyncChannel 1.002s

270 + read blocks until value is available in BufferedChannel 1.001s

271 + values arrive in order 0.09s

272 + reading a closed channel returns Failure(ChannelClosedException) 0.007s

273 + writing to a closed channel throws ChannelClosedException 0.002s

274 + send a lot of values via a channel and check their sum 0.136s

275 + multiple writers, multiple readers 6.003s

276 + race reads 0.056s

277 + unbounded channels with sync sending 0.001s

278 + race sends 0.116s

279 + race syntax 0.002s

280 + ChannelMultiplexer multiplexes - all subscribers read the same stream 0.004s

281 + ChannelMultiplexer multiple readers and writers 1.008s

282StressTest:

283 + survives a stress test that hammers on creating futures 11.332s

284 + survives a stress test that hammers on suspending 20.094s

285

286************************

287Build summary:

288[{

289 "module": "gears",

290 "compile": {"status": "ok", "tookMs": 9554, "warnings": 1, "errors": 0, "sourceVersion": "3.8"},

291 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

292 "test-compile": {"status": "ok", "tookMs": 4170, "warnings": 5, "errors": 0, "sourceVersion": "3.8"},

293 "test": {"status": "ok", "tookMs": 31817, "passed": 96, "failed": 0, "ignored": 1, "skipped": 0, "total": 97, "byFramework": [{"framework": "munit", "stats": {"passed": 96, "failed": 0, "ignored": 1, "skipped": 0, "total": 97}}]},

294 "publish": {"status": "skipped", "tookMs": 0},

295 "metadata": {

296 "crossScalaVersions": ["3.3.3"]

297}

298}]

299************************

300[success] Total time: 48 s, completed Dec 31, 2025, 9:34:52 PM

301[0JChecking patch project/plugins.sbt...

302Checking patch project/build.properties...

303Checking patch build.sbt...

304Applied patch project/plugins.sbt cleanly.

305Applied patch project/build.properties cleanly.

306Applied patch build.sbt cleanly.