error: Built-in symbol `__UTC_YEAR__` cannot be purged
    at builtin-overwrite.asm::tickle(5) <- builtin-overwrite.asm(36)
error: Built-in symbol `__UTC_YEAR__` cannot be purged
    at builtin-overwrite.asm::tickle(6) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in
    at builtin-overwrite.asm::tickle(9) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in
    at builtin-overwrite.asm::tickle(10) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(13) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(14) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in
    at builtin-overwrite.asm::tickle(17) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in
    at builtin-overwrite.asm::tickle(18) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(21) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(22) <- builtin-overwrite.asm(36)
error: Built-in symbol `__UTC_YEAR__` cannot be redefined
    at builtin-overwrite.asm::tickle(25) <- builtin-overwrite.asm(36)
error: Built-in symbol `__UTC_YEAR__` cannot be redefined
    at builtin-overwrite.asm::tickle(26) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in non-`EQUS`
    at builtin-overwrite.asm::tickle(29) <- builtin-overwrite.asm(36)
error: `__UTC_YEAR__` already defined as built-in non-`EQUS`
    at builtin-overwrite.asm::tickle(30) <- builtin-overwrite.asm(36)
error: Built-in symbol `__ISO_8601_UTC__` cannot be purged
    at builtin-overwrite.asm::tickle(5) <- builtin-overwrite.asm(37)
error: Built-in symbol `__ISO_8601_UTC__` cannot be purged
    at builtin-overwrite.asm::tickle(6) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in
    at builtin-overwrite.asm::tickle(9) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in
    at builtin-overwrite.asm::tickle(10) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(13) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(14) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in
    at builtin-overwrite.asm::tickle(17) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in
    at builtin-overwrite.asm::tickle(18) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(21) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in constant
    at builtin-overwrite.asm::tickle(22) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in non-`EQU`
    at builtin-overwrite.asm::tickle(25) <- builtin-overwrite.asm(37)
error: `__ISO_8601_UTC__` already defined as built-in non-`EQU`
    at builtin-overwrite.asm::tickle(26) <- builtin-overwrite.asm(37)
error: Built-in symbol `__ISO_8601_UTC__` cannot be redefined
    at builtin-overwrite.asm::tickle(29) <- builtin-overwrite.asm(37)
error: Built-in symbol `__ISO_8601_UTC__` cannot be redefined
    at builtin-overwrite.asm::tickle(30) <- builtin-overwrite.asm(37)
Assembly aborted with 28 errors!