error[E0463]: can't find crate for `core` about rust-raspberrypi-os-tutorials

[andre-richter]

Should be the sudo. It makes it use root installation of rust which will not have the target.

[EWYan]

thx for reply.
is the follow print log as expected?
it seems not like the description in project MD files

yan@ubuntu:~/Desktop/rust-raspberrypi-OS-tutorials/01_wait_forever$ make qemu

Launching QEMU
----------------
IN: 
0x00000000:  580000c0  ldr      x0, #0x18
0x00000004:  aa1f03e1  mov      x1, xzr
0x00000008:  aa1f03e2  mov      x2, xzr
0x0000000c:  aa1f03e3  mov      x3, xzr
0x00000010:  58000084  ldr      x4, #0x20
0x00000014:  d61f0080  br       x4

----------------
IN: 
0x00000300:  d2801b05  mov      x5, #0xd8
0x00000304:  d53800a6  mrs      x6, mpidr_el1
0x00000308:  924004c6  and      x6, x6, #3
0x0000030c:  d503205f  wfe      
0x00000310:  f86678a4  ldr      x4, [x5, x6, lsl #3]
0x00000314:  b4ffffc4  cbz      x4, #0x30c

----------------
IN: 
0x0000030c:  d503205f  wfe      
0x00000310:  f86678a4  ldr      x4, [x5, x6, lsl #3]
0x00000314:  b4ffffc4  cbz      x4, #0x30c

----------------
IN: 
0x00000300:  d2801b05  mov      x5, #0xd8
0x00000304:  d53800a6  mrs      x6, mpidr_el1
0x00000308:  924004c6  and      x6, x6, #3
0x0000030c:  d503205f  wfe      
0x00000310:  f86678a4  ldr      x4, [x5, x6, lsl #3]
0x00000314:  b4ffffc4  cbz      x4, #0x30c

----------------
IN: 
0x00080000:  d503205f  wfe      
0x00080004:  17ffffff  b        #0x80000

----------------
IN: 
0x00000300:  d2801b05  mov      x5, #0xd8
0x00000304:  d53800a6  mrs      x6, mpidr_el1
0x00000308:  924004c6  and      x6, x6, #3
0x0000030c:  d503205f  wfe      
0x00000310:  f86678a4  ldr      x4, [x5, x6, lsl #3]
0x00000314:  b4ffffc4  cbz      x4, #0x30c