`snapshot save <name>` tries to use snapshot name as machine name

vagrant_snapshot_save_foo.debug.txt

 INFO global: Vagrant version: 2.2.6
 INFO global: Ruby version: 2.4.9
 INFO global: RubyGems version: 2.6.14.4
 INFO global: VAGRANT_LOG="info"
 INFO global: VAGRANT_INSTALLER_ENV="1"
 INFO global: VAGRANT_INSTALLER_VERSION="2"
 INFO global: VAGRANT_INSTALLER_EMBEDDED_DIR="/opt/vagrant/embedded"
 INFO global: VAGRANT_EXECUTABLE="/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/bin/vagrant"
 WARN global: resolv replacement has not been enabled!
 INFO manager: Registered plugin: Slackware host
 INFO manager: Registered plugin: FreeBSD host
 INFO manager: Registered plugin: Void host
 INFO manager: Registered plugin: Linux host
 INFO manager: Registered plugin: null host
 INFO manager: Registered plugin: SUSE host
 INFO manager: Registered plugin: Red Hat Enterprise Linux host
 INFO manager: Registered plugin: Mac OS X host
 INFO manager: Registered plugin: Windows host
 INFO manager: Registered plugin: Arch host
 INFO manager: Registered plugin: Gentoo host
 INFO manager: Registered plugin: ALT Platform host
 INFO manager: Registered plugin: BSD host
 INFO manager: Registered plugin: kernel
 INFO manager: Registered plugin: RSync synced folders
 INFO manager: Registered plugin: NFS synced folders
 INFO manager: Registered plugin: SMB synced folders
 INFO manager: Registered plugin: docker-provider
 INFO manager: Registered plugin: VirtualBox provider
 INFO manager: Registered plugin: Hyper-V provider
 INFO manager: Registered plugin: Slackware guest
 INFO manager: Registered plugin: Haiku guest
 INFO manager: Registered plugin: FreeBSD guest
 INFO manager: Registered plugin: Elementary guest
 INFO manager: Registered plugin: Mint guest
 INFO manager: Registered plugin: VMware Photon guest
 INFO manager: Registered plugin: Linux guest.
 INFO manager: Registered plugin: NixOS guest
 INFO manager: Registered plugin: TinyCore Linux guest.
 INFO manager: Registered plugin: Solaris 11 guest.
 INFO manager: Registered plugin: Debian guest
 INFO manager: Registered plugin: SUSE guest
 INFO manager: Registered plugin: Ubuntu guest
 INFO manager: Registered plugin: PLD Linux guest
 INFO manager: Registered plugin: DragonFly BSD guest
 INFO manager: Registered plugin: Alpine guest
 INFO manager: Registered plugin: Red Hat Enterprise Linux guest
 INFO manager: Registered plugin: CoreOS guest
 INFO manager: Registered plugin: Darwin guest
 INFO manager: Registered plugin: Solaris guest.
 INFO manager: Registered plugin: OpenBSD guest
 INFO manager: Registered plugin: Kali guest
 INFO manager: Registered plugin: Windows guest.
 INFO manager: Registered plugin: Arch guest
 INFO manager: Registered plugin: Gentoo guest
 INFO manager: Registered plugin: Trisquel guest
 INFO manager: Registered plugin: OmniOS guest.
 INFO manager: Registered plugin: ALT Platform guest
 INFO manager: Registered plugin: ESXi guest.
 INFO manager: Registered plugin: Amazon Linux guest
 INFO manager: Registered plugin: Funtoo guest
 INFO manager: Registered plugin: BSD-based guest
 INFO manager: Registered plugin: Atomic Host guest
 INFO manager: Registered plugin: SmartOS guest.
 INFO manager: Registered plugin: NetBSD guest
 INFO manager: Registered plugin: Fedora guest
 INFO manager: Registered plugin: kernel
 INFO manager: Registered plugin: status command
 INFO manager: Registered plugin: winrm-config command
 INFO manager: Registered plugin: halt command
 INFO manager: Registered plugin: cap command
 INFO manager: Registered plugin: provision command
 INFO manager: Registered plugin: package command
 INFO manager: Registered plugin: port command
 INFO manager: Registered plugin: snapshot command
 INFO manager: Registered plugin: suspend command
 INFO manager: Registered plugin: reload command
 INFO manager: Registered plugin: upload command
 INFO manager: Registered plugin: winrm command
 INFO manager: Registered plugin: version command
 INFO manager: Registered plugin: rdp command
 INFO manager: Registered plugin: push command
 INFO manager: Registered plugin: destroy command
 INFO manager: Registered plugin: ssh command
 INFO manager: Registered plugin: validate command
 INFO manager: Registered plugin: box command
 INFO manager: Registered plugin: help command
 INFO manager: Registered plugin: global-status command
 INFO manager: Registered plugin: init command
 INFO manager: Registered plugin: resume command
 INFO manager: Registered plugin: plugin command
 INFO manager: Registered plugin: up command
 INFO manager: Registered plugin: vagrant-login
 INFO manager: Registered plugin: vagrant-cloud
 INFO manager: Registered plugin: list-commands command
 INFO manager: Registered plugin: provider command
 INFO manager: Registered plugin: powershell command
 INFO manager: Registered plugin: ssh-config command
 INFO manager: Registered plugin: atlas
 INFO manager: Registered plugin: local-exec
 INFO manager: Registered plugin: heroku
 INFO manager: Registered plugin: noop
 INFO manager: Registered plugin: ftp
 INFO manager: Registered plugin: file
 INFO manager: Registered plugin: docker
 INFO manager: Registered plugin: ansible
 INFO manager: Registered plugin: shell
 INFO manager: Registered plugin: salt
 INFO manager: Registered plugin: chef
 INFO manager: Registered plugin: puppet
 INFO manager: Registered plugin: CFEngine Provisioner
 INFO manager: Registered plugin: winrm communicator
 INFO manager: Registered plugin: windows ssh communicator
 INFO manager: Registered plugin: ssh communicator
 INFO vagrant: `vagrant` invoked: ["snapshot", "save", "foo"]
 INFO environment: Environment initialized (#<Vagrant::Environment:0x00000000029653f0>)
 INFO environment:   - cwd: /home/gitlab-runner/builds/zSzUBvzc/0/bitmash/bitmash/test
 INFO environment: Home path: /home/gitlab-runner/.vagrant.d
 INFO environment: Local data path: /home/gitlab-runner/builds/zSzUBvzc/0/bitmash/bitmash/test/.vagrant
 INFO manager: Plugins:
 INFO manager: Loading plugins...
 INFO manager: Plugins:
 INFO manager: Loading plugins...
 INFO loader: Set :root = ["#<Pathname:/home/gitlab-runner/builds/zSzUBvzc/0/bitmash/bitmash/test/Vagrantfile>"]
 INFO loader: Loading configuration in order: [:home, :root]
 INFO base: VBoxManage path: VBoxManage
 INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "--version"]
 INFO subprocess: Command not in installer, restoring original environment...
 INFO meta: Using VirtualBox driver: VagrantPlugins::ProviderVirtualBox::Driver::Version_5_2
 INFO base: VBoxManage path: VBoxManage
 INFO base: VBoxManage path: VBoxManage
 INFO meta: Using VirtualBox driver: VagrantPlugins::ProviderVirtualBox::Driver::Version_5_2
 INFO base: VBoxManage path: VBoxManage
 INFO loader: Set "22118980_machine_default" = []
 INFO loader: Loading configuration in order: [:home, :root, "22118980_machine_default"]
 INFO box_collection: Box found: bento/ubuntu-16.04-i386 (virtualbox)
 INFO environment: Running hook: authenticate_box_url
 INFO host: Autodetecting host type for [#<Vagrant::Environment: /home/gitlab-runner/builds/zSzUBvzc/0/bitmash/bitmash/test>]
 INFO host: Detected: linux!
 INFO runner: Preparing hooks for middleware sequence...
 INFO runner: 2 hooks defined.
 INFO runner: Running action: authenticate_box_url #<Vagrant::Action::Builder:0x0000000002b67888>
 INFO warden: Calling IN action: #<Vagrant::Action::Builtin::BeforeTriggerAction:0x0000000002a35d48>
 INFO warden: Calling IN action: #<VagrantPlugins::CloudCommand::AddAuthentication:0x0000000002a35ca8>
 INFO warden: Calling IN action: #<Vagrant::Action::Builtin::AfterTriggerAction:0x0000000002a35af0>
 INFO warden: Calling OUT action: #<Vagrant::Action::Builtin::AfterTriggerAction:0x0000000002a35af0>
 INFO warden: Calling OUT action: #<VagrantPlugins::CloudCommand::AddAuthentication:0x0000000002a35ca8>
 INFO warden: Calling OUT action: #<Vagrant::Action::Builtin::BeforeTriggerAction:0x0000000002a35d48>
 INFO loader: Set :"21113780_bento/ubuntu-16.04-i386_virtualbox" = ["#<Pathname:/home/gitlab-runner/.vagrant.d/boxes/bento-VAGRANTSLASH-ubuntu-16.04-i386/201906.17.0/virtualbox/Vagrantfile>"]
 INFO loader: Loading configuration in order: [:"21113780_bento/ubuntu-16.04-i386_virtualbox", :home, :root, "22118980_machine_default"]
 INFO environment: Running hook: environment_plugins_loaded
 INFO runner: Preparing hooks for middleware sequence...
 INFO runner: 1 hooks defined.
 INFO runner: Running action: environment_plugins_loaded #<Vagrant::Action::Builder:0x00000000022c6a58>
 INFO environment: Running hook: environment_load
 INFO runner: Preparing hooks for middleware sequence...
 INFO runner: 1 hooks defined.
 INFO runner: Running action: environment_load #<Vagrant::Action::Builder:0x0000000002cc5b08>
 INFO cli: CLI: [] "snapshot" ["save", "foo"]
 INFO environment: Running hook: environment_unload
 INFO runner: Preparing hooks for middleware sequence...
 INFO runner: 1 hooks defined.
 INFO runner: Running action: environment_unload #<Vagrant::Action::Builder:0x00000000027c58d8>
ERROR vagrant: Vagrant experienced an error! Details:
ERROR vagrant: #<Vagrant::Errors::MachineNotFound: The machine with the name 'foo' was not found configured for
this Vagrant environment.>
ERROR vagrant: The machine with the name 'foo' was not found configured for
this Vagrant environment.
ERROR vagrant: /opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/vagrantfile.rb:120:in `machine_config'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/environment.rb:337:in `default_provider'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/plugin/v2/command.rb:177:in `block in with_target_vms'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/plugin/v2/command.rb:204:in `block in with_target_vms'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/plugin/v2/command.rb:186:in `each'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/plugin/v2/command.rb:186:in `with_target_vms'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/plugins/commands/snapshot/command/save.rb:43:in `execute'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/plugins/commands/snapshot/command/root.rb:65:in `execute'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/cli.rb:66:in `execute'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/lib/vagrant/environment.rb:290:in `cli'
/opt/vagrant/embedded/gems/2.2.6/gems/vagrant-2.2.6/bin/vagrant:182:in `<main>'
 INFO interface: error: The machine with the name 'foo' was not found configured for
this Vagrant environment.
The machine with the name 'foo' was not found configured for
this Vagrant environment.
 INFO interface: Machine: error-exit ["Vagrant::Errors::MachineNotFound", "The machine with the name 'foo' was not found configured for\nthis Vagrant environment."]