Task 10591392

Name	08374678_51_0
Workunit	8278057
Created	15 Jun 2021, 5:20:40 UTC
Sent	15 Jun 2021, 10:41:43 UTC
Report deadline	20 Jun 2021, 10:41:43 UTC
Received	18 Jun 2021, 0:21:02 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	197 (0x000000C5) EXIT_TIME_LIMIT_EXCEEDED
Computer ID	9383
Run time	2 hours 13 min 29 sec
CPU time	2 sec
Validate state	Invalid
Credit	0.00
Device peak FLOPS	4.09 GFLOPS
Application version	boinc2docker v1.14 (vbox64_mt) windows_x86_64
Peak working set size	89.35 MB
Peak swap size	91.92 MB
Peak disk usage	499.82 MB
Stderr output

<core_client_version>7.16.11</core_client_version>
<![CDATA[
<message>
exceeded elapsed time limit 7993.66 (86400.00G/10.81G)</message>
<stderr_txt>
2021-06-17 17:10:24 (18144): Detected: vboxwrapper 26202
2021-06-17 17:10:24 (18144): Detected: BOINC client v7.16.11
2021-06-17 17:10:25 (18144): Detected: VirtualBox VboxManage Interface (Version: 6.0.14)
2021-06-17 17:10:25 (18144): Create VM. (boinc_efc05ba622f4bacf, slot#0)
2021-06-17 17:10:25 (18144): Updating drive controller type and model for desired configuration.
2021-06-17 17:10:26 (18144): Setting Memory Size for VM. (3072MB)
2021-06-17 17:10:26 (18144): Setting CPU Count for VM. (1)
2021-06-17 17:10:26 (18144): Setting Chipset Options for VM.
2021-06-17 17:10:27 (18144): Setting Boot Options for VM.
2021-06-17 17:10:27 (18144): Setting Network Configuration for NAT.
2021-06-17 17:10:27 (18144): Enabling VM Network Access.
2021-06-17 17:10:27 (18144): Disabling USB Support for VM.
2021-06-17 17:10:28 (18144): Disabling COM Port Support for VM.
2021-06-17 17:10:28 (18144): Disabling LPT Port Support for VM.
2021-06-17 17:10:28 (18144): Disabling Audio Support for VM.
2021-06-17 17:10:29 (18144): Disabling Clipboard Support for VM.
2021-06-17 17:10:29 (18144): Disabling Drag and Drop Support for VM.
2021-06-17 17:10:29 (18144): Adding storage controller(s) to VM.
2021-06-17 17:10:29 (18144): Adding virtual ISO 9660 disk drive to VM. (vm_isocontext.iso)
2021-06-17 17:10:30 (18144): Adding VirtualBox Guest Additions to VM.
2021-06-17 17:10:30 (18144): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2021-06-17 17:10:30 (18144): Enabling shared directory for VM.
2021-06-17 17:10:31 (18144): Starting VM using VBoxManage interface. (boinc_efc05ba622f4bacf, slot#0)
2021-06-17 17:10:35 (18144): Successfully started VM. (PID = '19056')
2021-06-17 17:10:35 (18144): Reporting VM Process ID to BOINC.
2021-06-17 17:10:35 (18144): Guest Log: BIOS: VirtualBox 6.0.14
2021-06-17 17:10:35 (18144): Guest Log: CPUID EDX: 0x178bf3ff
2021-06-17 17:10:35 (18144): VM state change detected. (old = 'poweredoff', new = 'running')
2021-06-17 17:10:35 (18144): Preference change detected
2021-06-17 17:10:35 (18144): Setting CPU throttle for VM. (100%)
2021-06-17 17:10:35 (18144): Setting checkpoint interval to 600 seconds. (Higher value of (Preference: 60 seconds) or (Vbox_job.xml: 600 seconds))
2021-06-17 17:10:37 (18144): Guest Log: BIOS: Boot : bseqnr=1, bootseq=0032
2021-06-17 17:10:37 (18144): Guest Log: int13_harddisk: function 02, unmapped device for ELDL=80
2021-06-17 17:10:37 (18144): Guest Log: BIOS: Boot from Hard Disk 0 failed
2021-06-17 17:10:37 (18144): Guest Log: BIOS: Boot : bseqnr=2, bootseq=0003
2021-06-17 17:10:37 (18144): Guest Log: BIOS: Booting from CD-ROM...
2021-06-17 18:50:39 (18144): Status Report: Elapsed Time: '6000.000000'
2021-06-17 18:50:39 (18144): Status Report: CPU Time: '2.531250'
2021-06-17 19:23:40 (18144): Powering off VM.
2021-06-17 19:23:40 (18144): Successfully stopped VM.
2021-06-17 19:23:40 (18144): Deregistering VM. (boinc_efc05ba622f4bacf, slot#0)
2021-06-17 19:23:40 (18144): Removing network bandwidth throttle group from VM.
2021-06-17 19:23:40 (18144): Removing VM from VirtualBox.
2021-06-17 19:23:40 (18144): Removing virtual ISO 9660 disk from VirtualBox.

    Hypervisor System Log:

52:05:02.603632          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.603688          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.603748          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.603802          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.603852          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.603904          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.603955          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604005          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604055          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604104          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604152          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604200          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604249          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604298          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604348          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604398          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.604447          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.605050          Saving settings file "C:\Users\D-PC\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
52:05:02.869180          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869353          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869465          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869536          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869593          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869651          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869703          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869751          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869801          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869850          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869899          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869949          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.869998          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870047          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870095          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870144          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870192          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870242          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870290          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
52:05:02.870367          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={5047460a-265d-4538-b23e-ddba5fb84976} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

e Port count:         255
Maximum Devices per NVMe Port:   1
Maximum PIIX3 Floppy Controllers:1
Maximum ICH9 Floppy Controllers: 1
Maximum Floppy Port count:       1
Maximum Devices per Floppy Port: 2
Default machine folder:          C:\Users\D-PC\VirtualBox VMs
Raw-mode Supported:              yes
Exclusive HW virtualization use: off
Default hard disk format:        VDI
VRDE auth library:               VBoxAuth
Webservice auth. library:        VBoxAuth
Remote desktop ExtPack:          
Log history count:               3
Default frontend:                
Default audio driver:            DirectSound
Autostart database path:         
Default Guest Additions ISO:     C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso
Logging Level:                   all
Proxy Mode:                      System
Proxy URL:                       

2021-06-17 17:10:25 (18144): 
Command: VBoxManage -q list hostinfo 
Exit Code: 0
Output:
Host Information:

Host time: 2021-06-17T21:10:25.097000000Z
Processor online count: 12
Processor count: 12
Processor online core count: 6
Processor core count: 6
Processor supports HW virtualization: no
Processor supports PAE: yes
Processor supports long mode: yes
Processor supports nested paging: no
Processor#0 speed: unknown
Processor#0 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#1 speed: unknown
Processor#1 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#2 speed: unknown
Processor#2 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#3 speed: unknown
Processor#3 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#4 speed: unknown
Processor#4 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#5 speed: unknown
Processor#5 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#6 speed: unknown
Processor#6 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#7 speed: unknown
Processor#7 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#8 speed: unknown
Processor#8 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#9 speed: unknown
Processor#9 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#10 speed: unknown
Processor#10 description: AMD Ryzen 5 1600 Six-Core Processor
Processor#11 speed: unknown
Processor#11 description: AMD Ryzen 5 1600 Six-Core Processor
Memory size: 16332 MByte
Memory available: 10021 MByte
Operating system: Windows 10
Operating system version: 10.0.19042

2021-06-17 17:10:25 (18144): 
Command: VBoxManage -q showvminfo "boinc_efc05ba622f4bacf" --machinereadable 
Exit Code: -2135228415
Output:
VBoxManage.exe: error: Could not find a registered machine named 'boinc_efc05ba622f4bacf'
VBoxManage.exe: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee IUnknown
VBoxManage.exe: error: Context: "FindMachine(Bstr(VMNameOrUuid).raw(), machine.asOutParam())" at line 2621 of file VBoxManageInfo.cpp

2021-06-17 17:10:25 (18144): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC\slots\0/vm_image.vdi" 
Exit Code: -2135228412
Output:
VBoxManage.exe: error: Could not find file for the medium 'C:\ProgramData\BOINC\slots\0\vm_image.vdi' (VERR_FILE_NOT_FOUND)
VBoxManage.exe: error: Details: code VBOX_E_FILE_ERROR (0x80bb0004), component MediumWrap, interface IMedium, callee IUnknown
VBoxManage.exe: error: Context: "OpenMedium(Bstr(pszFilenameOrUuid).raw(), enmDevType, enmAccessMode, fForceNewUuidOnOpen, pMedium.asOutParam())" at line 191 of file VBoxManageDisk.cpp

2021-06-17 17:10:26 (18144): 
Command: VBoxManage -q createvm --name "boinc_efc05ba622f4bacf" --basefolder "C:\ProgramData\BOINC\slots\0" --ostype "Linux26_64" --register
Exit Code: 0
Output:
Virtual machine 'boinc_efc05ba622f4bacf' is created and registered.
UUID: b2ee79e2-8d83-4713-9440-a0b5fb2025e9
Settings file: 'C:\ProgramData\BOINC\slots\0\boinc_efc05ba622f4bacf\boinc_efc05ba622f4bacf.vbox'

2021-06-17 17:10:26 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --description "08374678_51_0" 
Exit Code: 0
Output:

2021-06-17 17:10:26 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --memory 3072 
Exit Code: 0
Output:

2021-06-17 17:10:26 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --cpus 1 
Exit Code: 0
Output:

2021-06-17 17:10:27 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --acpi on --ioapic on 
Exit Code: 0
Output:

2021-06-17 17:10:27 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --boot1 disk --boot2 dvd --boot3 none --boot4 none 
Exit Code: 0
Output:

2021-06-17 17:10:27 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --nic1 nat --natdnsproxy1 on --cableconnected1 off 
Exit Code: 0
Output:

2021-06-17 17:10:27 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --cableconnected1 on 
Exit Code: 0
Output:

2021-06-17 17:10:28 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --usb off 
Exit Code: 0
Output:

2021-06-17 17:10:28 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --uart1 off --uart2 off 
Exit Code: 0
Output:

2021-06-17 17:10:28 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2021-06-17 17:10:29 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --audio none 
Exit Code: 0
Output:

2021-06-17 17:10:29 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --clipboard disabled 
Exit Code: 0
Output:

2021-06-17 17:10:29 (18144): 
Command: VBoxManage -q modifyvm "boinc_efc05ba622f4bacf" --draganddrop disabled 
Exit Code: 0
Output:

2021-06-17 17:10:29 (18144): 
Command: VBoxManage -q storagectl "boinc_efc05ba622f4bacf" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2021-06-17 17:10:30 (18144): 
Command: VBoxManage -q storageattach "boinc_efc05ba622f4bacf" --storagectl "Hard Disk Controller" --port 0 --device 0 --type dvddrive --medium "C:\ProgramData\BOINC\slots\0/vm_isocontext.iso" 
Exit Code: 0
Output:

2021-06-17 17:10:30 (18144): 
Command: VBoxManage -q storageattach "boinc_efc05ba622f4bacf" --storagectl "Hard Disk Controller" --port 2 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2021-06-17 17:10:30 (18144): 
Command: VBoxManage -q bandwidthctl "boinc_efc05ba622f4bacf" add "boinc_efc05ba622f4bacf_net" --type network --limit 1024G 
Exit Code: 0
Output:

2021-06-17 17:10:30 (18144): 
Command: VBoxManage -q sharedfolder add "boinc_efc05ba622f4bacf" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\0/shared"
Exit Code: 0
Output:

2021-06-17 17:10:34 (18144): 
Command: VBoxManage -q startvm "boinc_efc05ba622f4bacf" --type headless
Exit Code: 0
Output:
Waiting for VM "boinc_efc05ba622f4bacf" to power on...
VM "boinc_efc05ba622f4bacf" has been successfully started.

2021-06-17 17:10:35 (18144): 
Command: VBoxManage -q controlvm "boinc_efc05ba622f4bacf" cpuexecutioncap 100 
Exit Code: 0
Output:

2021-06-17 19:23:40 (18144): 
Command: VBoxManage -q controlvm "boinc_efc05ba622f4bacf" poweroff
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2021-06-17 19:23:40 (18144): 
Command: VBoxManage -q snapshot "boinc_efc05ba622f4bacf" list 
Exit Code: -108
Output:
This machine does not have any snapshots

2021-06-17 19:23:40 (18144): 
Command: VBoxManage -q bandwidthctl "boinc_efc05ba622f4bacf" remove "boinc_efc05ba622f4bacf_net" 
Exit Code: 0
Output:

2021-06-17 19:23:40 (18144): 
Command: VBoxManage -q unregistervm "boinc_efc05ba622f4bacf" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2021-06-17 19:23:41 (18144): 
Command: VBoxManage -q closemedium dvd "C:\ProgramData\BOINC\slots\0/vm_isocontext.iso" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

19:23:51 (18144): called boinc_finish(194)

</stderr_txt>
]]>