Futures with an error but no callback no longer raise.
Futures with an error but no callback no longer raise.

This was done as a safety measure against futures which may be
accidentally discarded when they have an exception leading the exception
being silently forgotten. Unfortunately we will need to come up with
some other solution.

nafsaka/Nim,douglas-larocca/Nim,reactormonk/nim,msmith491/Nim,jfhg/Nim,fredericksilva/Nim,msmith491/Nim,russpowers/Nim,tulayang/Nim,Dhertz/Nim,Matt14916/Nim,nanoant/Nim,Salafit/Nim,msmith491/Nim,MrJohz/Nim,Matt14916/Nim,Dhertz/Nim,douglas-larocca/Nim,msmith491/Nim,haiodo/Nim,xland/Nim,singularperturbation/Nim,russpowers/Nim,msmith491/Nim,MrJohz/Nim,greyanubis/Nim,kirbyfan64/Nim,sferik/Nim,fredericksilva/Nim,greyanubis/Nim,nafsaka/Nim,gokr/Nim,fredericksilva/Nim,endragor/Nim,bvssvni/Nim,fredericksilva/Nim,kirbyfan64/Nim,msmith491/Nim,BlaXpirit/nim,sarvex/Nim-lang,endragor/Nim,BlaXpirit/nim,greyanubis/Nim,xland/Nim,zachaysan/Nim,Dhertz/Nim,BlaXpirit/nim,sferik/Nim,Matt14916/Nim,SSPkrolik/Nim,jsanjuas/Nim,nafsaka/Nim,MrJohz/Nim,SSPkrolik/Nim,JCavallo/Nim,judofyr/Nim,nimLuckyBull/Nim,mbaulch/Nim,reactormonk/nim,greyanubis/Nim,dom96/Nim,Senketsu/Nim,Salafit/Nim,russpowers/Nim,Senketsu/Nim,gokr/Nim,fmamud/Nim,tulayang/Nim,reactormonk/nim,russpowers/Nim,bvssvni/Nim,SSPkrolik/Nim,gokr/Nim,reactormonk/nim,kirbyfan64/Nim,SSPkrolik/Nim,Matt14916/Nim,jsanjuas/Nim,reactormonk/nim,sarvex/Nim-lang,haiodo/Nim,Salafit/Nim,nimLuckyBull/Nim,haiodo/Nim,bvssvni/Nim,Salafit/Nim,Salafit/Nim,endragor/Nim,fmamud/Nim,JCavallo/Nim,tmm1/Nim,dom96/Nim,BlaXpirit/nim,judofyr/Nim,SSPkrolik/Nim,JCavallo/Nim,kirbyfan64/Nim,fmamud/Nim,douglas-larocca/Nim,Dhertz/Nim,judofyr/Nim,singularperturbation/Nim,Senketsu/Nim,tmm1/Nim,haiodo/Nim,greyanubis/Nim,MrJohz/Nim,sferik/Nim,Matt14916/Nim,Senketsu/Nim,nimLuckyBull/Nim,JCavallo/Nim,Senketsu/Nim,nafsaka/Nim,douglas-larocca/Nim,msmith491/Nim,nanoant/Nim,nimLuckyBull/Nim,mbaulch/Nim,jsanjuas/Nim,Senketsu/Nim,zachaysan/Nim,jfhg/Nim,tulayang/Nim,haiodo/Nim,singularperturbation/Nim,jsanjuas/Nim,fmamud/Nim,mbaulch/Nim,nafsaka/Nim,nafsaka/Nim,dom96/Nim,SSPkrolik/Nim,jsanjuas/Nim,Senketsu/Nim,reactormonk/nim,reactormonk/nim,mbaulch/Nim,douglas-larocca/Nim,judofyr/Nim,kirbyfan64/Nim,tulayang/Nim,sferik/Nim,Matt14916/Nim,nanoant/Nim,jfhg/Nim,dom96/Nim,mbaulch/Nim,JCavallo/Nim,BlaXpirit/nim,fmamud/Nim,russpowers/Nim,gokr/Nim,Dhertz/Nim,SSPkrolik/Nim,fredericksilva/Nim,fredericksilva/Nim,sarvex/Nim-lang,mbaulch/Nim,Salafit/Nim,tulayang/Nim,douglas-larocca/Nim,zachaysan/Nim,russpowers/Nim,tulayang/Nim,nimLuckyBull/Nim,MrJohz/Nim,gokr/Nim,singularperturbation/Nim,endragor/Nim,endragor/Nim,Dhertz/Nim,singularperturbation/Nim,nimLuckyBull/Nim,sarvex/Nim-lang,fredericksilva/Nim,singularperturbation/Nim,nanoant/Nim,russpowers/Nim,jfhg/Nim,tmm1/Nim,kirbyfan64/Nim,xland/Nim,tmm1/Nim,douglas-larocca/Nim,kirbyfan64/Nim,nanoant/Nim,fredericksilva/Nim,nanoant/Nim,judofyr/Nim,gokr/Nim,greyanubis/Nim,fmamud/Nim,bvssvni/Nim,xland/Nim,judofyr/Nim,endragor/Nim,douglas-larocca/Nim,JCavallo/Nim,JCavallo/Nim,nafsaka/Nim,fmamud/Nim,BlaXpirit/nim,greyanubis/Nim,nanoant/Nim,haiodo/Nim,xland/Nim,gokr/Nim,tmm1/Nim,dom96/Nim,xland/Nim,mbaulch/Nim,sarvex/Nim-lang,gokr/Nim,tmm1/Nim,Matt14916/Nim,jfhg/Nim,reactormonk/nim,bvssvni/Nim,bvssvni/Nim,jsanjuas/Nim,SSPkrolik/Nim,sferik/Nim,BlaXpirit/nim,kirbyfan64/Nim,sferik/Nim,singularperturbation/Nim,MrJohz/Nim,jsanjuas/Nim,MrJohz/Nim,xland/Nim,judofyr/Nim,endragor/Nim,zachaysan/Nim,jfhg/Nim,sferik/Nim,zachaysan/Nim,tmm1/Nim,dom96/Nim,Dhertz/Nim,Salafit/Nim,judofyr/Nim,jfhg/Nim,dom96/Nim,zachaysan/Nim,sarvex/Nim-lang,zachaysan/Nim,sarvex/Nim-lang,BlaXpirit/nim,bvssvni/Nim,nimLuckyBull/Nim,sferik/Nim,haiodo/Nim