Failing migration from Crucible with FishEye v2.6.0 -> 3.1.5

java.io.IOException: Error talking to database: Problem with constraints script /opt/webservers/fecru-2.6.0_initial/sql/MYSQL/schema/constraints_73.sql
at com.atlassian.crucible.migration.item.SQLBackup.restore(SQLBackup.java:206)
at com.atlassian.crucible.migration.item.SQLBackup$1.restore(SQLBackup.java:173)
at com.cenqua.fisheye.ctl.Restore.run(Restore.java:166)
at com.cenqua.fisheye.ctl.Restore.main(Restore.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.cenqua.fisheye.FishEyeCtl.mainImpl(FishEyeCtl.java:114)
at com.cenqua.fisheye.FishEyeCtl.main(FishEyeCtl.java:42)
Caused by: com.cenqua.crucible.hibernate.CruDBException: Problem with constraints script /opt/webservers/fecru-2.6.0_initial/sql/MYSQL/schema/constraints_73.sql
at com.cenqua.crucible.hibernate.DefaultDBControl.addConstraints(DefaultDBControl.java:318)
at com.atlassian.crucible.migration.item.DBImporter.importData(DBImporter.java:159)
at com.atlassian.crucible.migration.item.SQLBackup.restore(SQLBackup.java:192)
... 9 more
Caused by: com.cenqua.crucible.hibernate.CruDBException: SQL script error on line 115: "alter table cru_revision add index FKE2F52A1434AAD25A (cru_path), add constraint FKE2F52A1434AAD25A foreign key (cru_path) references cru_stored_path (cru_path_id);"
(Cannot add or update a child row: a foreign key constraint fails (`sources_RC1`.`#sql-1b16_1142`, CONSTRAINT `FKE2F52A1434AAD25A` FOREIGN KEY (`cru_path`) REFERENCES `cru_stored_path` (`cru_path_id`))), please contact http://www.atlassian.com/support/
at com.cenqua.crucible.hibernate.DefaultDBControl.executeScript(DefaultDBControl.java:484)
at com.cenqua.crucible.hibernate.DefaultDBControl.executeScript(DefaultDBControl.java:415)
at com.cenqua.crucible.hibernate.DefaultDBControl.addConstraints(DefaultDBControl.java:312)
... 11 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`sources_RC1`.`#sql-1b16_1142`, CONSTRAINT `FKE2F52A1434AAD25A` FOREIGN KEY (`cru_path`) REFERENCES `cru_stored_path` (`cru_path_id`))
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1038)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3563)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3495)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2687)
at com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1647)
at com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1566)
at com.cenqua.crucible.hibernate.DefaultDBControl.executeScript(DefaultDBControl.java:456)
... 13 more