Changes:
Makefile
: addRUST_TARGET_PATH
for xargoXargo.toml
: changecollections
toalloc
because it doesn't exist no moresrc/runtime.rs
: changepanic_fmt
topanic_handler
because a breaking-changesrc/lib.rs
: remove#![feature(use_extern_macros)]
x86_64-linux.json
: avoid relocation typeR_X86_64_GOTPCREL
because of dmesg log unknown rela relocation 9