valgrind scary report
in the middle of handling a GET

> Invalid read of size 8
> ==4048==    at 0x1BDF18: statusContentIter_zW9c7nGLSNoIH9cfofFXi4nA (jester.nim:90)
> ==4048==    by 0x1BE5B6: statusContent_continue_WCCTXOA9c65GXBv9aCNAX1zA (asyncmacro.nim:34)
> ==4048==    by 0x1BEC73: statusContent_HxrYd39cDwtMUIbqM5hufsw (asyncmacro.nim:401)
> ==4048==    by 0x1C5BB2: handleRequestIter_zW9c7nGLSNoIH9cfofFXi4nA_5 (jester.nim:303)
> ==4048==    by 0x1C6234: handleRequest_continue_WCCTXOA9c65GXBv9aCNAX1zA_5 (asyncmacro.nim:37)
> ==4048==    by 0x1C6993: handleRequest_0y9awor09bpQXNdY54QcfG9bg (asyncmacro.nim:401)
> ==4048==    by 0x1C6A83: handleHTTPRequest_wgoGIkIobaSioVhefHcx7A (jester.nim:321)
> ==4048==    by 0x1C6CC9: colonanonymous__NR9bnPHLoHio4fLEwVHo3og (jester.nim:350)
> ==4048==    by 0x1CFF35: processRequestIter_dwt11Jx9bQoVsTeVQbJ9bzQQ (asynchttpserver.nim:143)
> ==4048==    by 0x1D0A26: processRequest_continue_8U9cIXoWfwogCKwJZ6S0SNA (asyncmacro.nim:37)
> ==4048==    by 0x14B97A: processPendingCallbacks_SmnbicdBxLog3d0rzfeG3w (asyncdispatch.nim:183)
> ==4048==    by 0x14F9E4: runOnce_mXlNJtuWiqnwbU9ceoRo80w (asyncdispatch.nim:1277)
> ==4048==  Address 0x0 is not stack'd, malloc'd or (recently) free'd

I'm skipping the reports of all the `Use of uninitialised value of size 8` since it was reported it is Nim's way of doing [sic] "conservative stack marking" https://github.com/nim-lang/Nim/issues/3063

but then there are those

> Conditional jump or move depends on uninitialised value(s)
> ==4048==    at 0x128CA8: auxWriteStackTrace_WTLGTxWV8l6Fdgckdz3n2Q (excpt.nim:257)
> ==4048==    by 0x128F5E: rawWriteStackTrace_imNuOIqoJ9csXlrh58OtfXg (excpt.nim:268)
> ==4048==    by 0x132430: signalHandler (excpt.nim:460)
> ==4048==    by 0x579805F: ??? (in /lib/x86_64-linux-gnu/libc-2.24.so)

and finally

> Syscall param write(buf) contains uninitialised byte(s)
> ==4048==    at 0x584074D: ??? (syscall-template.S:84)
> ==4048==    by 0x57D7816: _IO_file_write@@GLIBC_2.2.5 (fileops.c:1271)
> ==4048==    by 0x57D6B61: new_do_write (fileops.c:526)
> ==4048==    by 0x57D7F6D: _IO_file_xsputn@@GLIBC_2.2.5 (fileops.c:1350)
> ==4048==    by 0x57CC96E: fputs (iofputs.c:38)
> ==4048==    by 0x128365: write_ADGLlEJAOtGNWWur8rrJfg (sysio.nim:96)
> ==4048==    by 0x128399: writeToStdErr_7HRVfGfZT2rSmBdcLxl8TA (excpt.nim:21)
> ==4048==    by 0x1283EB: showErrorMessage_rsUJ87b89bH0GlWKYL9c8wUQ (excpt.nim:34)
> ==4048==    by 0x1325CE: signalHandler (excpt.nim:462)
> ==4048==    by 0x579805F: ??? (in /lib/x86_64-linux-gnu/libc-2.24.so)
> ==4048==    by 0x1BDF17: statusContentIter_zW9c7nGLSNoIH9cfofFXi4nA (jester.nim:90)
> ==4048==    by 0x1BE5B6: statusContent_continue_WCCTXOA9c65GXBv9aCNAX1zA (asyncmacro.nim:34)

Which in the end results in:

> Traceback (most recent call last)
> prcServer.nim(184)       prcServer
> prcServer.nim(180)       main
> asyncdispatch.nim(1507)  runForever
> asyncdispatch.nim(1511)  poll
> asyncdispatch.nim(1277)  runOnce
> asyncdispatch.nim(183)   processPendingCallbacks
> asyncmacro.nim(37)       processRequest_continue
> asynchttpserver.nim(143) processRequestIter
> jester.nim(350)          :anonymous
> jester.nim(321)          handleHTTPRequest
> asyncmacro.nim(401)      handleRequest
> asyncmacro.nim(37)       handleRequest_continue
> jester.nim(303)          handleRequestIter
> asyncmacro.nim(401)      statusContent
> asyncmacro.nim(34)       statusContent_continue
> jester.nim(90)           statusContentIter
> SIGSEGV: Illegal storage access. (Attempt to read from nil?)

Possibly, it's trying to handle an exception, caused by `db_mysql` module.
It's undebugable because we don't know where it is when it crashes.
So, I ran it under `gdb` and that's where it is:

> Thread 1 "prcServer" received signal SIGSEGV, Segmentation fault.
> 0x0000555555609f18 in statusContentIter_zW9c7nGLSNoIH9cfofFXi4nA (ClE_0=0x7ffff7f72408) at /home/vivien/.nimble/pkgs/jester-0.2.0/jester.nim:90
> 90	    await c.send(headerData & content)

PS: Thanks for the fun project, but it just doesn't cut it, so I'll be moving to Node.js