OSX error with 'callers'

[anacrolix]

[77647:0506/221816:INFO:CONSOLE(25)] "/Users/anacrolix/gopath/bin/oracle -pos=/Users/anacrolix/gopath/src/github.com/anacrolix/torrent/client.go:#11845 -format=plain what undefined", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (25)
[77647:0506/221816:INFO:CONSOLE(25)] "/Users/anacrolix/gopath/bin/oracle -pos=/Users/anacrolix/gopath/src/github.com/anacrolix/torrent/client.go:#11845 -format=plain describe github.com/anacrolix/torrent", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (25)
[77647:0506/221839:INFO:CONSOLE(25)] "/Users/anacrolix/gopath/bin/oracle -pos=/Users/anacrolix/gopath/src/github.com/anacrolix/torrent/client.go:#11845 -format=plain what undefined", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (25)
[77647:0506/221839:INFO:CONSOLE(25)] "/Users/anacrolix/gopath/bin/oracle -pos=/Users/anacrolix/gopath/src/github.com/anacrolix/torrent/client.go:#11845 -format=plain callers github.com/anacrolix/torrent", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (25)
[77647:0506/221840:INFO:CONSOLE(41)] "Error running "callers": cgo failed: [go tool cgo -objdir /tmp/net_C106883355 -- -I /tmp/net_C106883355 cgo_bsd.go cgo_resnew.go cgo_sockold.go cgo_unix.go]: exec: "go": executable file not found in $PATH
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221840:INFO:CONSOLE(41)] "Error running "callers": cgo failed: [go tool cgo -objdir /tmp/crypto_x509_C269084606 -- -I /tmp/crypto_x509_C269084606 -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1060 root_cgo_darwin.go]: exec: "go": executable file not found in $PATH
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221841:INFO:CONSOLE(41)] "Error running "callers": /Users/anacrolix/src/go/src/net/lookup_unix.go:58:24: undeclared name: cgoLookupHost
/Users/anacrolix/src/go/src/net/lookup_unix.go:71:24: undeclared name: cgoLookupIP
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221841:INFO:CONSOLE(41)] "Error running "callers": /Users/anacrolix/src/go/src/net/lookup_unix.go:87:23: undeclared name: cgoLookupPort
/Users/anacrolix/src/go/src/net/lookup_unix.go:97:24: undeclared name: cgoLookupCNAME
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221841:INFO:CONSOLE(41)] "Error running "callers": /Users/anacrolix/src/go/src/net/lookup_unix.go:164:23: undeclared name: cgoLookupPTR
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221841:INFO:CONSOLE(41)] "Error running "callers": /Users/anacrolix/src/go/src/crypto/x509/cert_pool.go:36:9: undeclared name: loadSystemRoots
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221841:INFO:CONSOLE(41)] "Error running "callers": /Users/anacrolix/src/go/src/crypto/x509/root.go:21:32: undeclared name: loadSystemRoots
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)
[77647:0506/221842:INFO:CONSOLE(41)] "Error running "callers": oracle: couldn't load packages due to errors: net, crypto/x509
", source: /Users/anacrolix/.atom/packages/go-oracle/lib/oracle-command.coffee (41)