Build Logs

lampepfl/gears • 3.8.0-RC3:2025-12-04

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-RC3

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-RC3

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-RC3

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-RC3

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-RC3"

60"++3.8.0-RC3 -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-RC3 """{"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 8.238s.

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-RC3

79OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC3 in rootNative/crossScalaVersions

80OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC3 in rootJVM/crossScalaVersions

81OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC3 in repo/crossScalaVersions

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

83[info] Setting Scala version to 3.8.0-RC3 on 3 projects.

84[info] Switching Scala version on:

85[info] * repo (3.8.0-RC3)

86[info] rootJVM (3.8.0-RC3)

87[info] rootNative (3.8.0-RC3)

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 4, 2025, 3:06:18 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-RC3/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-RC3/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 0.041s

178 + lock two listeners 0.002s

179 + lock two listeners where one fails 0.002s

180 + lock two races 0.003s

181 + lock two races in reverse order 0.001s

182 + lock two nested races 0.002s

183 + lock two nested races in reverse order 0.001s

184 + race successful without wait 0.003s

185 + race successful with wait 0.005s

186 + race polling 0.001s

187 + race failed without wait 0.001s

188 + lockBoth of race with competing lock 0.001s

189 + conflicting locks 0.002s

190 + failing downstream listener is dropped in race 0.003s

191 + succeeding downstream listener is dropped in race 0.001s

192SchedulerBehavior:

193 + schedule cancellation works 1.033s

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

195 + execute works 0.0s

196TimerBehavior:

197 + sleeping does sleep 0.212s

198 + timer does sleep 1.005s

199 + racing with a sleeping future 2.253s

200RetryBehavior:

201 + Exponential backoff(2) 50ms, 5 times total schedule 0.761s

202 + UntilSuccess 150ms 0.603s

203 + UntilFailure 150ms 0.603s

204 + delay policies 0.008s

205JVMCancellationBehavior:

206 + no cancel -> timeout 5.03s

207SourceBehavior:

208 + onComplete register after completion runs immediately 0.001s

209 + poll is asynchronous 0.001s

210 + onComplete is asynchronous 0.001s

211 + await is synchronous 0.352s

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

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

214 + poll() 0.101s

215 + onComplete() fires 0.203s

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

217 + transform values with 0.003s

218 + all listeners in chain fire 0.163s

219 + either 0.402s

220 + source values 0.212s

221 + transformValuesWith unsubscribes 0.002s

222CancellationBehavior:

223 + no cancel 0.401s

224 + group cancel 0.001s

225 + link group 0.002s

226 + nested link group 0.002s

227 + link to already cancelled 0.503s

228 + link to already cancelled awaited 0.001s

229TaskScheduleBehavior:

230 + Every 100ms, 3 times total schedule 0.204s

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

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

233 + UntilSuccess 150ms 0.607s

234 + UntilFailure 150ms 0.603s

2351

236FutureBehavior:

237 + Old test 0.003s

238 + Constant returns 0.003s

239 + Future.now returning 0.0s

240 + Constant future with timeout 0.051s

241 + or 0.003s

242 + orWithCancel of 2 futures 0.602s

243 + zip 0.002s

244 + result wraps exceptions 0.002s

245 + result wraps values 0.002s

246 + value propagates exceptions exceptions through futures 0.001s

247 + futures can be nested 0.026s

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

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

250 + zombie threads exist and run to completion after the Async.blocking barrier 0.304s

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

252 + noninterruptible future immediate return 0.001s

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

254 + Promise can be cancelled 0.001s

255 + Promise can't be cancelled after completion 0.0s

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

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

258 + Future.withResolver is only completed after handler decides 0.003s

259 + Nesting of cancellations 0.401s

260 + future collector 1.001s

261 + mutable collector 2.003s

262 + future collection: awaitAll* 1.003s

263 + future collection: awaitFirst* 1.004s

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

265ChannelBehavior:

266 + sending is blocking in SyncChannel 0.514s

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 1.001s

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

271 + values arrive in order 0.079s

272 + reading a closed channel returns Failure(ChannelClosedException) 0.003s

273 + writing to a closed channel throws ChannelClosedException 0.001s

274 + send a lot of values via a channel and check their sum 0.128s

275 + multiple writers, multiple readers 6.003s

276 + race reads 0.054s

277 + unbounded channels with sync sending 0.001s

278 + race sends 0.117s

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 11.134s

284 + survives a stress test that hammers on suspending 20.093s

285

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

287Build summary:

288[{

289 "module": "gears",

290 "compile": {"status": "ok", "tookMs": 12738, "warnings": 1, "errors": 0, "sourceVersion": "3.8"},

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

292 "test-compile": {"status": "ok", "tookMs": 4520, "warnings": 5, "errors": 0, "sourceVersion": "3.8"},

293 "test": {"status": "ok", "tookMs": 31718, "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: 60 s, completed Dec 4, 2025, 3:07:17 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.