Rollup of 7 pull requests

[jdonszelmann]

Successful merges:

• Add const cloning of slices and tests #147938 (Add const cloning of slices and tests)
• Remove mentions of debootstrap and chroots from the m68k-unknown-none-elf platform support doc #150438 (Remove mentions of debootstrap and chroots from the m68k-unknown-none-elf platform support doc)
• std: move errno and related functions into sys::io #150723 (std: move errno and related functions into sys::io)
• Simplify #[eii] macro using methods on ecx #150906 (Simplify #[eii] macro using methods on ecx)
• Port #[collapse_debuginfo] to the new attribute parsing system #150938 (Port #[collapse_debuginfo] to the new attribute parsing system)
• std: sys: fs: uefi: Implement copy #150953 (std: sys: fs: uefi: Implement copy)
• Completely list all unparsed attributes #150964 (Completely list all unparsed attributes)

Failed merges:

• Rename EII attributes slightly (being consistent in naming things foreign items, not extern items) #150972 (Rename EII attributes slightly (being consistent in naming things foreign items, not extern items))

r? @ghost

Create a similar rollup

[jdonszelmann]

@bors r+ rollup=never p=5

[rust-bors]

📌 Commit 86ab863 has been approved by jdonszelmann

It is now in the queue for this repository.

[rust-log-analyzer]

The job dist-android failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

[RUSTC-TIMING] object test:false 5.840
error[E0425]: cannot find function `set_errno` in module `crate::sys::pal::os`
  --> /rustc/7ce2e85c9d8fe801c5173689146983ba53ee06fd/library/std/src/sys/process/unix/common.rs:64:38
   |
64 |                 crate::sys::pal::os::set_errno(libc::EINVAL);
   |                                      ^^^^^^^^^ not found in `crate::sys::pal::os`
   |
help: consider importing this function through its public re-export
   |
 4 + use crate::sys::io::set_errno;
   |
help: if you import `set_errno`, refer to it directly
   |
64 -                 crate::sys::pal::os::set_errno(libc::EINVAL);
64 +                 set_errno(libc::EINVAL);
   |

For more information about this error, try `rustc --explain E0425`.
[RUSTC-TIMING] std test:false 3.457
error: could not compile `std` (lib) due to 1 previous error

[rust-bors]

💔 Test for 7ce2e85 failed: CI. Failed jobs:

• auto - dist-android (web logs, enhanced plaintext logs)