Rust NuttX build issue: undefined reference to `core::panicking::panic'

rust-nuttx-build-undefined_reference.log

rushabhvg@rushabhvg-laptop:~/nuttxspace/nuttx$ make
LD: nuttx
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(hello_rust_main.rs.home.rushabhvg.nuttxspace.apps.examples.hello_rust_1.o): mis-matched ISA version 2.1 for 'i' extension, the output version is 2.0
riscv64-unknown-elf-ld: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(hello_rust_main.rs.home.rushabhvg.nuttxspace.apps.examples.hello_rust_1.o): can't link soft-float modules with double-float modules
riscv64-unknown-elf-ld: failed to merge target specific data of file /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(hello_rust_main.rs.home.rushabhvg.nuttxspace.apps.examples.hello_rust_1.o)
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(sh_main.c.home.rushabhvg.nuttxspace.apps.system.nsh_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(ostest_main.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(posixtimer.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(pthread_exit.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(pthread_rwlock.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(pthread_rwlock_cancel.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(restart.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(robust.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(roundrobin.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(schedlock.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(sem.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(semtimed.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(setvbuf.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(sighand.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(sighelper.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(signest.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(sigprocmask.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(timedmqueue.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(timedmutex.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(timedwait.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(waitpid.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(nsh_system.c.home.rushabhvg.nuttxspace.apps.nshlib_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(barrier.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(cancel.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(cond.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(dev_null.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(fpu.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(getopt.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(mqueue.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(mutex.c.home.rushabhvg.nuttxspace.apps.testing.ostest_1.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libfs.a(fs_fstat.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libfs.a(fs_munmap.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libfs.a(mq_open.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libfs.a(mq_close.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libfs.a(mq_unlink.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libbinfmt.a(binfmt_exec.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libbinfmt.a(binfmt_execsymtab.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libbinfmt.a(binfmt_loadmodule.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libbinfmt.a(binfmt_execmodule.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/arch/risc-v/src/board/libboard.a(qemu_rv_appinit.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/riscv64-unknown-elf-toolchain-10.2.0-2020.12.8-x86_64-linux-ubuntu14/bin/../lib/gcc/riscv64-unknown-elf/10.2.0/rv32imafdc/ilp32d/libgcc.a(_clzsi2.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(env_putenv.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(group_exitinfo.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_send.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_timedsend.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_sndinternal.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_receive.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_timedreceive.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_rcvinternal.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_msgfree.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_msgqalloc.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(mq_msgqfree.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_create.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_join.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_getschedparam.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutexinit.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutexdestroy.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutextimedlock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutexunlock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_condwait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_condsignal.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_setschedprio.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_barrierwait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutex.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutexconsistent.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(sig_queue.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(sig_notification.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(task_create.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(task_getpid.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(task_restart.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(timer_create.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(timer_settime.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(wd_gettime.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(group_join.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libdrivers.a(mkrd.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libdrivers.a(syslog_putc.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libdrivers.a(syslog_write.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libdrivers.a(ramdisk.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_isprint.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_envpath.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_attr_setstacksize.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_barrierattr_init.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_barrierattr_destroy.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_barrierinit.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_barrierdestroy.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_condinit.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_conddestroy.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_condtimedwait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_kill.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_mutexattr_init.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_mutexattr_setrobust.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_mutex_lock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_yield.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_rwlock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_rwlock_rdlock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_rwlock_wrlock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_setcancelstate.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(pthread_testcancel.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(task_testcancel.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sem_destroy.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sem_wait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sem_timedwait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sem_clockwait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sem_post.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sig_hold.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(sig_relse.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_printf.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_putchar.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_puts.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fopen.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fclose.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fgets.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_libfgets.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_libfwrite.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_rdflush_unlocked.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fputc.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fputs.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fprintf.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_vfprintf.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_setvbuf.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_stdoutstream.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_getopt_long.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_getopt_longonly.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fgetc.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_fwrite.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_libfread_unlocked.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libc.a(lib_wrflush_unlocked.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libarch.a(riscv_fpucmp.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libfs.a(fs_registerblockdriver.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_mutextrylock.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_condbroadcast.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(pthread_condclockwait.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: warning: /home/rushabhvg/nuttxspace/nuttx/staging/libsched.a(sig_tgkill.o): mis-matched ISA version 2.0 for 'i' extension, the output version is 2.1
riscv64-unknown-elf-ld: /home/rushabhvg/nuttxspace/nuttx/staging/libapps.a(hello_rust_main.rs.home.rushabhvg.nuttxspace.apps.examples.hello_rust_1.o): in function `no symbol':
/home/rushabhvg/nuttxspace/apps/examples/hello_rust/hello_rust_main.rs:127: undefined reference to `core::panicking::panic'
make[1]: *** [Makefile:179: nuttx] Error 1
make: *** [tools/Unix.mk:546: nuttx] Error 2