7.810 UID FETCH 72,79:82 (BODY.PEEK[] BODYSTRUCTURE)
^Cpanic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x4150c7c]
goroutine 31 [running]:
panic(0x46026a0, 0xc8200120c0)
/usr/local/Cellar/go/1.6.2/libexec/src/runtime/panic.go:481 +0x3e6
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap.(*Envelope).Format(0x0, 0x0, 0x0, 0x0)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/message.go:513 +0x79c
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap.(*BodyStructure).Format(0xc820309b20, 0xc820297420, 0x7, 0x7)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/message.go:841 +0xc66
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap.(*BodyStructure).Format(0xc820309960, 0xc820365ec0, 0x1, 0x1)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/message.go:812 +0x106
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap.(*Message).Format(0xc8201d60e0, 0x0, 0x0, 0x0)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/message.go:144 +0x85e
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/responses.(*Fetch).WriteTo(0xc8200ec098, 0x5605428, 0xc820394580, 0x0, 0x0)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/responses/fetch.go:45 +0xc1
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/server.(*conn).WriteResp(0xc820366c80, 0x545eb40, 0xc8200ec098, 0x0, 0x0)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/server/conn.go:120 +0xe3
github.com/ProtonMail/secret-project/vendor/github.com/ProtonMail/go-imap-id.(*conn).WriteResp(0xc820394600, 0x545eb40, 0xc8200ec098, 0x0, 0x0)
<autogenerated>:17 +0x6f
github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/server.(*Fetch).handle.func1(0xc820422300, 0x56056e8, 0xc820394600, 0xc8200ec098)
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/server/cmd_selected.go:161 +0x5c
created by github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/server.(*Fetch).handle
/Users/Yanfeng/.go/src/github.com/ProtonMail/secret-project/vendor/github.com/emersion/go-imap/server/cmd_selected.go:163 +0x14a
exit status 2