Public bug reported:

jruby 1.7.21-2ubuntu2 FTBFS while running various mspec tests, the usual
maven build and tests run fine.

We want mspec tests to run and succed (instead if simply disabling it)
since it "provides the most accurate indication of the stability of your
local JRuby source" as stated by
https://github.com/jruby/jruby/blob/master/BUILDING.md#just-like-ci

Log error from AMD64 failed build at
https://launchpad.net/ubuntu/+source/jruby/1.7.21-2ubuntu2

./bin/jruby spec/mspec/bin/mspec ci
jruby 1.7.21 (1.9.3p551) 2015-08-31 fffffff on OpenJDK 64-Bit Server VM 
1.8.0_66-internal-b01 +jit [linux-amd64]
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
NoMethodError: undefined method `daemon' for Process:Module
  daemon_at_exit at /«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:55
             run at /«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
          (root) at /«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
NoMethodError: undefined method `daemon' for Process:Module
  keep_stdio_open_false_stdout at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:64
                           run at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
                        (root) at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
NoMethodError: undefined method `daemon' for Process:Module
  keep_stdio_open_false_stderr at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:69
                           run at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
                        (root) at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
NoMethodError: undefined method `daemon' for Process:Module
  keep_stdio_open_false_stdout at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:64
                           run at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
                        (root) at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
NoMethodError: undefined method `daemon' for Process:Module
  keep_stdio_open_false_stderr at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:69
                           run at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
                        (root) at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
NoMethodError: undefined method `daemon' for Process:Module
  keep_stdio_open_false_stdout at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:64
                           run at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
                        (root) at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
NoMethodError: undefined method `daemon' for Process:Module
  keep_stdio_open_false_stderr at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:69
                           run at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:11
                        (root) at 
/«PKGBUILDDIR»/spec/ruby/core/process/fixtures/daemon.rb:111
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
Errno::ENOENT: No such file or directory - echo
  _exec_internal at org/jruby/RubyKernel.java:1752
            exec at 
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel19/kernel.rb:28
          (root) at -e:1
The signal EXIT is in use by the JVM and will not work correctly on this 
platform
...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................E..F........FF...........................E..................F.................................................................................................................................................................................................................................................................................................................E....................F........................................................................F..................................................................................................................................................................................................................................................................................F..............E....................................................E...................................................................................................................................................................................................................................................................................................................................................EE.....F.....................F...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................E...EE....EE.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

1)
An exception occurred during: File.open ERROR
Errno::ENOENT: No such file or directory - which
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/file/open_spec.rb:526:in `(root)'
/«PKGBUILDDIR»/spec/ruby/core/file/open_spec.rb:525:in `(root)'
/«PKGBUILDDIR»/spec/ruby/core/file/open_spec.rb:524:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
/«PKGBUILDDIR»/spec/ruby/core/file/open_spec.rb:5:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

2)
File.pipe? returns true if the file is a pipe FAILED
Expected false
 to equal true

/«PKGBUILDDIR»/spec/ruby/core/file/pipe_spec.rb:27:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/file/pipe_spec.rb:8:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

3)
File.setgid? returns true when the gid bit is set FAILED
Expected false
 to equal true

/«PKGBUILDDIR»/spec/ruby/core/file/setgid_spec.rb:31:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/file/setgid_spec.rb:8:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

4)
File.setuid? returns true when the gid bit is set FAILED
Expected false
 to equal true

/«PKGBUILDDIR»/spec/ruby/core/file/setuid_spec.rb:31:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/file/setuid_spec.rb:8:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

5)
File::Stat#pipe? returns true if the file is a pipe ERROR
Errno::ENOENT: No such file or directory - 
/«PKGBUILDDIR»/rubyspec_temp/283-i_am_a_pipe
org/jruby/RubyFile.java:894:in `stat'
/«PKGBUILDDIR»/spec/ruby/core/file/stat/pipe_spec.rb:25:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/file/stat/pipe_spec.rb:9:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

6)
File.sticky? returns true if the file has sticky bit set FAILED
Expected false
 to equal true

/«PKGBUILDDIR»/spec/ruby/core/file/sticky_spec.rb:29:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/file/sticky_spec.rb:9:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

7)
Kernel#` returns the standard output of the executed sub-process ERROR
Errno::ENOENT: No such file or directory - echo
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/kernel/backtick_spec.rb:11:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/backtick_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

8)
Kernel#` tries to convert the given argument to String using #to_str ERROR
Errno::ENOENT: No such file or directory - echo
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/kernel/backtick_spec.rb:16:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/backtick_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

9)
Kernel#exec runs the specified command, replacing current process FAILED
Expected ""
 to equal "hello\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:32:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/exec_spec.rb:5:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

10)
Kernel#exec with a single argument creates an argument array with shell parsing 
semantics for whitespace FAILED
Expected ""
 to equal "a b c d\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:50:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/exec_spec.rb:5:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

11)
Kernel#exec with multiple arguments does not subject the arguments to shell 
expansion FAILED
Expected ""
 to equal "*\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:56:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/exec_spec.rb:5:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

12)
Kernel.exec runs the specified command, replacing current process FAILED
Expected ""
 to equal "hello\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:32:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/exec_spec.rb:13:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

13)
Kernel.exec with a single argument creates an argument array with shell parsing 
semantics for whitespace FAILED
Expected ""
 to equal "a b c d\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:50:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/exec_spec.rb:13:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

14)
Kernel.exec with multiple arguments does not subject the arguments to shell 
expansion FAILED
Expected ""
 to equal "*\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:56:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/exec_spec.rb:13:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

15)
Kernel#system executes the specified command in a subprocess FAILED
Expected (STDOUT): "a\n"
          but got: ""
Backtrace
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:6:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:69:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

16)
Kernel#system returns true when the command exits with a zero exit status FAILED
Expected nil
 to equal true

/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:10:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:69:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

17)
Kernel#system returns false when the command exits with a non-zero exit status 
FAILED
Expected nil
 to equal false

/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:14:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:69:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

18)
Kernel#system does not expand shell variables when given multiples arguments 
FAILED
Expected (STDOUT): "$TEST_SH_EXPANSION\n"
          but got: ""
Backtrace
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:56:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:69:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

19)
Kernel.system executes the specified command in a subprocess FAILED
Expected (STDOUT): "a\n"
          but got: ""
Backtrace
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:6:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:77:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

20)
Kernel.system returns true when the command exits with a zero exit status FAILED
Expected nil
 to equal true

/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:10:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:77:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

21)
Kernel.system returns false when the command exits with a non-zero exit status 
FAILED
Expected nil
 to equal false

/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:14:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:77:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

22)
Kernel.system does not expand shell variables when given multiples arguments 
FAILED
Expected (STDOUT): "$TEST_SH_EXPANSION\n"
          but got: ""
Backtrace
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:56:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/kernel/system_spec.rb:77:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

23)
Process.exec runs the specified command, replacing current process FAILED
Expected ""
 to equal "hello\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:32:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/process/exec_spec.rb:5:in `(root)'
/«PKGBUILDDIR»/spec/ruby/core/process/exec_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

24)
Process.exec with a single argument creates an argument array with shell 
parsing semantics for whitespace FAILED
Expected ""
 to equal "a b c d\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:50:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/process/exec_spec.rb:5:in `(root)'
/«PKGBUILDDIR»/spec/ruby/core/process/exec_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

25)
Process.exec with multiple arguments does not subject the arguments to shell 
expansion FAILED
Expected ""
 to equal "*\n"

/«PKGBUILDDIR»/spec/ruby/shared/process/exec.rb:56:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/process/exec_spec.rb:5:in `(root)'
/«PKGBUILDDIR»/spec/ruby/core/process/exec_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

26)
Process.gid returns the correct gid for the user executing this process ERROR
Errno::ENOENT: No such file or directory - id
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/process/gid_spec.rb:6:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/process/gid_spec.rb:3:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

27)
Process.uid returns the correct uid for the user executing this process ERROR
Errno::ENOENT: No such file or directory - id
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/process/uid_spec.rb:6:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/process/uid_spec.rb:3:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

28)
Time.new creates a time based on the current system time ERROR
Errno::ENOENT: No such file or directory - which
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/time/shared/now.rb:6:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/time/new_spec.rb:7:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

29)
Time.now creates a time based on the current system time ERROR
Errno::ENOENT: No such file or directory - which
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/core/time/shared/now.rb:6:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/time/now_spec.rb:5:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

30)
Time#strftime returns the timezone with %Z FAILED
Expected "+00:00"
 to equal "GMT"

/«PKGBUILDDIR»/spec/ruby/core/time/strftime_spec.rb:238:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/time/strftime_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

31)
Time#zone returns UTC when called on a UTC time FAILED
Expected "GMT"
 to equal "UTC"

/«PKGBUILDDIR»/spec/ruby/core/time/zone_spec.rb:19:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/core/time/zone_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

32)
An exception occurred during: before :all ERROR
Errno::ENOENT: No such file or directory - id
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/library/etc/getgrgid_spec.rb:18:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
/«PKGBUILDDIR»/spec/ruby/library/etc/getgrgid_spec.rb:16:in `(root)'
/«PKGBUILDDIR»/spec/ruby/library/etc/getgrgid_spec.rb:15:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

33)
Etc.getpwnam returns a Etc::Passwd struct instance for the given user ERROR
Errno::ENOENT: No such file or directory - whoami
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/library/etc/getpwnam_spec.rb:25:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
org/jruby/RubyFixnum.java:275:in `times'
org/jruby/RubyArray.java:1613:in `each'
/«PKGBUILDDIR»/spec/ruby/library/etc/getpwnam_spec.rb:15:in `(root)'
/«PKGBUILDDIR»/spec/ruby/library/etc/getpwnam_spec.rb:14:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

34)
An exception occurred during: before :all ERROR
Errno::ENOENT: No such file or directory - id
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/library/etc/getpwuid_spec.rb:17:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
/«PKGBUILDDIR»/spec/ruby/library/etc/getpwuid_spec.rb:15:in `(root)'
/«PKGBUILDDIR»/spec/ruby/library/etc/getpwuid_spec.rb:14:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

35)
An exception occurred during: before :all ERROR
Errno::ENOENT: No such file or directory - id
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/library/etc/struct_group_spec.rb:7:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
/«PKGBUILDDIR»/spec/ruby/library/etc/struct_group_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

36)
An exception occurred during: before :all ERROR
Errno::ENOENT: No such file or directory - id
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:28:in 
``'
file:/«PKGBUILDDIR»/lib/jruby.jar!/jruby/kernel/jruby/process_manager.rb:55:in 
``'
/«PKGBUILDDIR»/spec/ruby/library/etc/struct_passwd_spec.rb:7:in `(root)'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyEnumerable.java:1412:in `all?'
/«PKGBUILDDIR»/spec/ruby/library/etc/struct_passwd_spec.rb:4:in `(root)'
org/jruby/RubyKernel.java:1059:in `load'
org/jruby/RubyBasicObject.java:1574:in `instance_eval'
org/jruby/RubyArray.java:1613:in `each'

Finished in 350.714000 seconds

3352 files, 19453 examples, 52651 expectations, 23 failures, 13 errors

-----------------------------------------------------
The rubyspec temp directory is not empty. Ensure that
all specs are cleaning up temporary files:
  /«PKGBUILDDIR»/rubyspec_temp
-----------------------------------------------------

debian/rules:56: recipe for target 'override_dh_auto_test' failed
make[1]: *** [override_dh_auto_test] Error 1
make[1]: Leaving directory '/«PKGBUILDDIR»'
debian/rules:14: recipe for target 'build' failed
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
────────────────────────────────────────────────────────────────────────────────
Build finished at 20150831-1124

** Affects: jruby (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1491526

Title:
  jruby FTBFS when running mspec tests

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