linux-kernel - Re: linux-next: Tree for Oct 2

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Message-ID: <aN7cRUOxq-zwCoZN@stanley.mountain>
Date: Thu, 2 Oct 2025 23:10:45 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: rust-for-linux@...r.kernel.org, Mark Brown <broonie@...nel.org>
Cc: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>,
	Linux Next Mailing List <linux-next@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: Tree for Oct 2

Rust is broken on today's linux-next (next-20251002) on Debian forky/sid.

regards,
dan carpenter

$ make -j32
  SYNC    include/config/auto.conf
  HOSTCC  scripts/basic/fixdep
  CALL    scripts/checksyscalls.sh
  RUSTC L rust/core.o
error: cannot find a built-in macro with name `define_opaque`
    --> /usr/lib/rustlib/src/rust/library/core/src/macros/mod.rs:1757:5
     |
1757 | /     pub macro define_opaque($($tt:tt)*) {
1758 | |         /* compiler built-in */
1759 | |     }
     | |_____^

error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
    --> /usr/lib/rustlib/src/rust/library/core/src/pin.rs:1946:28
     |
1946 | #[cfg_attr(not(bootstrap), rustc_macro_edition_2021)]
     |                            ^^^^^^^^^^^^^^^^^^^^^^^^

error: cannot find attribute `rustc_macro_edition_2021` in this scope
    --> /usr/lib/rustlib/src/rust/library/core/src/pin.rs:1946:28
     |
1946 | #[cfg_attr(not(bootstrap), rustc_macro_edition_2021)]
     |                            ^^^^^^^^^^^^^^^^^^^^^^^^

error[E0522]: definition of an unknown lang item: `use_cloned`
   --> /usr/lib/rustlib/src/rust/library/core/src/clone.rs:219:28
    |
219 | #[cfg_attr(not(bootstrap), lang = "use_cloned")]
    |                            ^^^^^^^^^^^^^^^^^^^ definition of unknown lang item `use_cloned`

error[E0522]: definition of an unknown lang item: `RangeMin`
  --> /usr/lib/rustlib/src/rust/library/core/src/pat.rs:28:32
   |
28 |     #[cfg_attr(not(bootstrap), lang = "RangeMin")]
   |                                ^^^^^^^^^^^^^^^^^ definition of unknown lang item `RangeMin`

error[E0522]: definition of an unknown lang item: `RangeMax`
  --> /usr/lib/rustlib/src/rust/library/core/src/pat.rs:32:32
   |
32 |     #[cfg_attr(not(bootstrap), lang = "RangeMax")]
   |                                ^^^^^^^^^^^^^^^^^ definition of unknown lang item `RangeMax`

error[E0522]: definition of an unknown lang item: `RangeSub`
  --> /usr/lib/rustlib/src/rust/library/core/src/pat.rs:36:32
   |
36 |     #[cfg_attr(not(bootstrap), lang = "RangeSub")]
   |                                ^^^^^^^^^^^^^^^^^ definition of unknown lang item `RangeSub`

error: requires `format_alignment` lang_item
   --> /usr/lib/rustlib/src/rust/library/core/src/macros/mod.rs:623:24
    |
623 |         $dst.write_fmt($crate::format_args!($($arg)*))
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
   ::: /usr/lib/rustlib/src/rust/library/core/src/any.rs:790:13
    |
790 |             write!(f, "TypeId({:#034x})", self.as_u128())?;
    |             --------------------------------------------- in this macro invocation
    |
    = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 8 previous errors

For more information about this error, try `rustc --explain E0522`.
make[2]: *** [rust/Makefile:507: rust/core.o] Error 1
make[1]: *** [/home/dcarpenter/progs/kernel/trees/Makefile:1286: prepare] Error 2
make: *** [Makefile:248: __sub-make] Error 2