scons: Make compiler version error more verbose and easier to debug.
scons: Make compiler version error more verbose and easier to debug.

yb-kim/gemV,KuroeKurose/gem5,KuroeKurose/gem5,samueldotj/TeeRISC-Simulator,yb-kim/gemV,sobercoder/gem5,briancoutinho0905/2dsampling,rjschof/gem5,rjschof/gem5,markoshorro/gem5,gedare/gem5,aclifton/cpeg853-gem5,sobercoder/gem5,gedare/gem5,yb-kim/gemV,HwisooSo/gemV-update,markoshorro/gem5,zlfben/gem5,TUD-OS/gem5-dtu,rallylee/gem5,markoshorro/gem5,zlfben/gem5,KuroeKurose/gem5,SanchayanMaity/gem5,joerocklin/gem5,gedare/gem5,markoshorro/gem5,KuroeKurose/gem5,HwisooSo/gemV-update,rjschof/gem5,aclifton/cpeg853-gem5,HwisooSo/gemV-update,powerjg/gem5-ci-test,zlfben/gem5,kaiyuanl/gem5,samueldotj/TeeRISC-Simulator,kaiyuanl/gem5,qizenguf/MLC-STT,aclifton/cpeg853-gem5,kaiyuanl/gem5,powerjg/gem5-ci-test,Weil0ng/gem5,HwisooSo/gemV-update,SanchayanMaity/gem5,cancro7/gem5,sobercoder/gem5,briancoutinho0905/2dsampling,sobercoder/gem5,gem5/gem5,powerjg/gem5-ci-test,SanchayanMaity/gem5,cancro7/gem5,aclifton/cpeg853-gem5,rallylee/gem5,gem5/gem5,markoshorro/gem5,samueldotj/TeeRISC-Simulator,rallylee/gem5,rjschof/gem5,joerocklin/gem5,briancoutinho0905/2dsampling,rallylee/gem5,joerocklin/gem5,qizenguf/MLC-STT,KuroeKurose/gem5,austinharris/gem5-riscv,Weil0ng/gem5,SanchayanMaity/gem5,briancoutinho0905/2dsampling,austinharris/gem5-riscv,gedare/gem5,joerocklin/gem5,samueldotj/TeeRISC-Simulator,SanchayanMaity/gem5,yb-kim/gemV,samueldotj/TeeRISC-Simulator,gedare/gem5,Weil0ng/gem5,qizenguf/MLC-STT,kaiyuanl/gem5,powerjg/gem5-ci-test,sobercoder/gem5,yb-kim/gemV,KuroeKurose/gem5,kaiyuanl/gem5,gedare/gem5,cancro7/gem5,zlfben/gem5,rjschof/gem5,rallylee/gem5,Weil0ng/gem5,zlfben/gem5,qizenguf/MLC-STT,TUD-OS/gem5-dtu,yb-kim/gemV,rallylee/gem5,aclifton/cpeg853-gem5,briancoutinho0905/2dsampling,powerjg/gem5-ci-test,HwisooSo/gemV-update,markoshorro/gem5,yb-kim/gemV,TUD-OS/gem5-dtu,samueldotj/TeeRISC-Simulator,KuroeKurose/gem5,markoshorro/gem5,TUD-OS/gem5-dtu,qizenguf/MLC-STT,HwisooSo/gemV-update,Weil0ng/gem5,joerocklin/gem5,yb-kim/gemV,Weil0ng/gem5,Weil0ng/gem5,TUD-OS/gem5-dtu,joerocklin/gem5,HwisooSo/gemV-update,austinharris/gem5-riscv,gedare/gem5,zlfben/gem5,SanchayanMaity/gem5,kaiyuanl/gem5,austinharris/gem5-riscv,gem5/gem5,kaiyuanl/gem5,gem5/gem5,aclifton/cpeg853-gem5,austinharris/gem5-riscv,sobercoder/gem5,sobercoder/gem5,qizenguf/MLC-STT,zlfben/gem5,briancoutinho0905/2dsampling,cancro7/gem5,cancro7/gem5,austinharris/gem5-riscv,qizenguf/MLC-STT,gem5/gem5,cancro7/gem5,rjschof/gem5,austinharris/gem5-riscv,briancoutinho0905/2dsampling,samueldotj/TeeRISC-Simulator,TUD-OS/gem5-dtu,joerocklin/gem5,powerjg/gem5-ci-test,gem5/gem5,rjschof/gem5,rallylee/gem5,TUD-OS/gem5-dtu,joerocklin/gem5,powerjg/gem5-ci-test,gem5/gem5,SanchayanMaity/gem5,aclifton/cpeg853-gem5,cancro7/gem5