Build Logs

lampepfl/gears • 3.8.0-RC2:2025-11-28

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-RC2

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-RC2

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-RC2

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-RC2

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-RC2"

60"++3.8.0-RC2 -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-RC2 """{"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 8.726s.

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-RC2

79OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC2 in rootNative/crossScalaVersions

80OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC2 in repo/crossScalaVersions

81OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC2 in rootJVM/crossScalaVersions

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

83[info] Setting Scala version to 3.8.0-RC2 on 3 projects.

84[info] Switching Scala version on:

85[info] * repo (3.8.0-RC2)

86[info] rootJVM (3.8.0-RC2)

87[info] rootNative (3.8.0-RC2)

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 Nov 28, 2025, 2:33:16 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-RC2/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-RC2/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

175true false

176ListenerBehavior:

177 + race two futures 0.046s

178 + lock two listeners 0.002s

179 + lock two listeners where one fails 0.003s

180 + lock two races 0.002s

181 + lock two races in reverse order 0.002s

182 + lock two nested races 0.002s

183 + lock two nested races in reverse order 0.001s

184 + race successful without wait 0.004s

185 + race successful with wait 0.004s

186 + race polling 0.002s

187 + race failed without wait 0.001s

188 + lockBoth of race with competing lock 0.002s

189 + conflicting locks 0.002s

190 + failing downstream listener is dropped in race 0.003s

191 + succeeding downstream listener is dropped in race 0.002s

192CancellationBehavior:

193 + no cancel 0.425s

194 + group cancel 0.002s

195 + link group 0.005s

196 + nested link group 0.002s

197 + link to already cancelled 0.502s

198 + link to already cancelled awaited 0.001s

199RetryBehavior:

200 + Exponential backoff(2) 50ms, 5 times total schedule 0.787s

201 + UntilSuccess 150ms 0.602s

202 + UntilFailure 150ms 0.602s

203 + delay policies 0.006s

204TaskScheduleBehavior:

205 + Every 100ms, 3 times total schedule 0.206s

206 + Exponential backoff(2) 50ms, 5 times total schedule 0.755s

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

208 + UntilSuccess 150ms 0.603s

209 + UntilFailure 150ms 0.604s

210SchedulerBehavior:

211 + schedule cancellation works 1.003s

212 + schedule cancellation doesn't abort inner code 1.052s

213 + execute works 0.001s

214SourceBehavior:

215 + onComplete register after completion runs immediately 0.001s

216 + poll is asynchronous 0.001s

217 + onComplete is asynchronous 0.001s

218 + await is synchronous 0.352s

219 + sources wait on children sources when they block 0.143s

220 + sources do not wait on zombie sources (which are killed at the end of Async.Blocking) 0.001s

221 + poll() 0.101s

222 + onComplete() fires 0.201s

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

224 + transform values with 0.002s

225 + all listeners in chain fire 0.152s

226 + either 0.403s

227 + source values 0.204s

228 + transformValuesWith unsubscribes 0.002s

229TimerBehavior:

230 + sleeping does sleep 0.201s

231 + timer does sleep 1.004s

232 + racing with a sleeping future 2.276s

2331

234FutureBehavior:

235 + Old test 0.058s

236 + Constant returns 0.007s

237 + Future.now returning 0.001s

238 + Constant future with timeout 0.053s

239 + or 0.008s

240 + orWithCancel of 2 futures 0.61s

241 + zip 0.002s

242 + result wraps exceptions 0.004s

243 + result wraps values 0.002s

244 + value propagates exceptions exceptions through futures 0.001s

245 + futures can be nested 0.018s

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 0.403s

258 + future collector 1.001s

259 + mutable collector 2.003s

260 + future collection: awaitAll* 1.005s

261 + future collection: awaitFirst* 1.006s

262 + uninterruptible should continue even when Future is cancelled 0.001s

263JVMCancellationBehavior:

264 + no cancel -> timeout 5.002s

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 1.007s

271 + values arrive in order 0.257s

272 + reading a closed channel returns Failure(ChannelClosedException) 0.012s

273 + writing to a closed channel throws ChannelClosedException 0.001s

274 + send a lot of values via a channel and check their sum 0.172s

275 + multiple writers, multiple readers 6.019s

276 + race reads 0.054s

277 + unbounded channels with sync sending 0.001s

278 + race sends 0.113s

279 + race syntax 0.002s

280 + ChannelMultiplexer multiplexes - all subscribers read the same stream 0.005s

281 + ChannelMultiplexer multiple readers and writers 1.006s

282StressTest:

283 + survives a stress test that hammers on creating futures 11.389s

284 + survives a stress test that hammers on suspending 20.09s

285

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

287Build summary:

288[{

289 "module": "gears",

290 "compile": {"status": "ok", "tookMs": 12542, "warnings": 1, "errors": 0, "sourceVersion": "3.8"},

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

292 "test-compile": {"status": "ok", "tookMs": 4611, "warnings": 5, "errors": 0, "sourceVersion": "3.8"},

293 "test": {"status": "ok", "tookMs": 32006, "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: 58 s, completed Nov 28, 2025, 2:34:14 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.