Trying the Go one-liner installer in a fresh GCE instance

gistfile1.txt

Linux instance-1 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
deleplace@instance-1:~$ go
-bash: go: command not found
deleplace@instance-1:~$ env | grep GO
deleplace@instance-1:~$ curl -LO https://get.golang.org/$(uname)/go_installer && chmod +x go_installer && ./go_inst
aller && rm go_installer
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    82  100    82    0     0    288      0 --:--:-- --:--:-- --:--:--   288
100 5057k  100 5057k    0     0  9650k      0 --:--:-- --:--:-- --:--:-- 9650k
Welcome to the Go installer!
Downloading Go version go1.8.3 to /home/deleplace/.go
This may take a bit of time...
Downloaded!
Setting up GOPATH
GOPATH has been set up!
One more thing! Run `source /home/deleplace/.bash_profile` to persist the
new environment variables to your current session, or open a
new shell prompt.
deleplace@instance-1:~$ go version
-bash: go: command not found
deleplace@instance-1:~$ env | grep GO
deleplace@instance-1:~$ source /home/deleplace/.bash_profile
deleplace@instance-1:~$ go version
go: cannot find GOROOT directory: /usr/local/go
deleplace@instance-1:~$ env | grep GO
GOPATH=/home/deleplace/go
deleplace@instance-1:~$ go
Go is a tool for managing Go source code.
Usage:
        go command [arguments]
The commands are:
        build       compile packages and dependencies
        clean       remove object files
        doc         show documentation for package or symbol
        env         print Go environment information
        bug         start a bug report
        fix         run go tool fix on packages
        fmt         run gofmt on package sources
        generate    generate Go files by processing source
        get         download and install packages and dependencies
        install     compile and install packages and dependencies
        list        list packages
        run         compile and run Go program
        test        test packages
        tool        run specified go tool
        version     print Go version
        vet         run go tool vet on packages
Use "go help [command]" for more information about a command.
Additional help topics:
        c           calling between Go and C
        buildmode   description of build modes
        filetype    file types
        gopath      GOPATH environment variable
        environment environment variables
        importpath  import path syntax
        packages    description of package lists
        testflag    description of testing flags
        testfunc    description of testing functions
Use "go help [topic]" for more information about that topic.