Noisecat fails to compile on Linux

[haarts]

After git clone and fixing the assignment issue as described in #5, I get:

noisecat on  master took 8s                                                                                              
❯ make                                                        
go get -u -f github.com/gedigi/noisecat/...                  
go get: -f flag is a no-op when using modules                                                                                                                                                                                                       
go get: installing executables with 'go get' in module mode is deprecated.
        Use 'go install pkg@version' instead.                
        For more information, see https://golang.org/doc/go-get-install-deprecation                                                                                                                                                                 
        or run 'go help get' or 'go help install'.           
cd /tmp/noisecat/cmd/noisecat; \                             
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -o /tmp/noisecat/bin/noisecat-linux-amd64 . ; \
cd /tmp/noisecat >/dev/null                                                                                               
go: cannot find main module, but found .git/config in /tmp/noisecat
        to create a module there, run:
        cd ../.. && go mod init      
cd /tmp/noisecat/cmd/noisecat; \                             
GOOS=darwin GOARCH=amd64 go build -ldflags="-s -w" -o /tmp/noisecat/bin/noisecat-darwin-amd64 . ; \
cd /tmp/noisecat >/dev/null                     
go: cannot find main module, but found .git/config in /tmp/noisecat                                                       
        to create a module there, run:
        cd ../.. && go mod init
cd /tmp/noisecat/cmd/noisecat; \  
GOOS=windows GOARCH=amd64 go build -ldflags="-s -w" -o /tmp/noisecat/bin/noisecat-windows-amd64.exe . ; \                 
cd /tmp/noisecat >/dev/null       
go: cannot find main module, but found .git/config in /tmp/noisecat   
        to create a module there, run:                                                                                    
        cd ../.. && go mod init        

Version:

❯ go version
go version go1.17.3 linux/amd64

I'm running Manjaro 21.2.0.