(ci) Update macOS Xcode to 15

[ehuss]

This updates the macOS builders to Xcode 15. The aarch64 images will be removing Xcode 14 and 16 very soon (actions/runner-images#10703), so we will need to make the switch to continue operating. The linked issue also documents GitHub's new policy for how they will be updating Xcode in the future. Also worth being aware of is the future plans for x86 runners documented in actions/runner-images#9255 and actions/runner-images#10686, which will impact our future upgrade behaviors.

I decided to also update the Xcode in the x86_64 runners, even though they are not being removed. It felt better to me to have all macOS runners on the same (major) version of Xcode. However, note that the x86_64 runners do not have the latest version of 15 (15.4), so I left them at 15.2 (which is currently the default Xcode of the runner).

Xcode 15 was previously causing problems (see #121058) which seem to be resolved now. @bjorn3 fixed the invalid r_symbolnum issue with cranelift. The issue with clang failing to link seems to be fixed, possibly by the update of the pre-built LLVM from 14 to llvm 15 in #124850, or an update in our source version of LLVM. I have run some try builds and at least LLVM seems to build (I did not run any tests).

Closes #121058

[rustbot]

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[Mark-Simulacrum]

@bors r+ rollup=never

[bors]

📌 Commit 94579ff has been approved by Mark-Simulacrum

It is now in the queue for this repository.

[bors]

⌛ Testing commit 94579ff with merge 437be25...

[rust-log-analyzer]

The job x86_64-apple-1 failed! Check out the build log: (web) (plain)

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

---- [debuginfo-lldb] tests/debuginfo/constant-ordering-prologue.rs stdout ----
NOTE: compiletest thinks it is using LLDB version 1500

error: check directive(s) from `/Users/runner/work/rust/rust/tests/debuginfo/constant-ordering-prologue.rs` not found in debugger output. errors:
    (constant-ordering-prologue.rs:23) ` = 19`
    (constant-ordering-prologue.rs:25) ` = 20`
    (constant-ordering-prologue.rs:27) ` = 21.5`
status: exit status: 0
command: PYTHONPATH="/Applications/Xcode_15.2.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python" PYTHONUNBUFFERED="1" "/usr/bin/python3" "/Users/runner/work/rust/rust/src/etc/lldb_batchmode.py" "/Users/runner/work/rust/rust/build/x86_64-apple-darwin/test/debuginfo/constant-ordering-prologue.lldb/a" "/Users/runner/work/rust/rust/build/x86_64-apple-darwin/test/debuginfo/constant-ordering-prologue.lldb/constant-ordering-prologue.debugger.script"
LLDB batch-mode script
----------------------
----------------------
Debugger commands script is '/Users/runner/work/rust/rust/build/x86_64-apple-darwin/test/debuginfo/constant-ordering-prologue.lldb/constant-ordering-prologue.debugger.script'.
Target executable is '/Users/runner/work/rust/rust/build/x86_64-apple-darwin/test/debuginfo/constant-ordering-prologue.lldb/a'.
Current working directory is '/Users/runner/work/rust/rust'
Creating a target for '/Users/runner/work/rust/rust/build/x86_64-apple-darwin/test/debuginfo/constant-ordering-prologue.lldb/a'
settings set auto-confirm true
version
version
lldb-1500.0.200.58 Apple Swift version 5.9.2 (swiftlang-5.9.2.2.56 clang-1500.1.0.2.5) 
command script import /Users/runner/work/rust/rust/./src/etc/lldb_lookup.py
type synthetic add -l lldb_lookup.synthetic_lookup -x ".*" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^&(mut )?str$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^&(mut )?\\[.+\\]$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(std::ffi::([a-z_]+::)+)OsString$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)Vec<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)VecDeque<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)BTreeSet<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)BTreeMap<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(std::collections::([a-z_]+::)+)HashMap<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(std::collections::([a-z_]+::)+)HashSet<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)Rc<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(alloc::([a-z_]+::)+)Arc<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(core::([a-z_]+::)+)Cell<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(core::([a-z_]+::)+)Ref<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(core::([a-z_]+::)+)RefMut<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(core::([a-z_]+::)+)RefCell<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(core::([a-z_]+::)+)NonZero<.+>$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^core::num::([a-z_]+::)*NonZero.+$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^(std::([a-z_]+::)+)PathBuf$" --category Rust
type summary add -F lldb_lookup.summary_lookup  -e -x -h "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust
type category enable Rust
b "constant_ordering_prologue::binding"
DEBUG: breakpoint added, id = 1
DEBUG: breakpoint added, id = 1
Breakpoint 1: where = a`constant_ordering_prologue::binding::h6905e7563685df40 + 17 at constant-ordering-prologue.rs:30:9, address = 0x0000000100003eb1 
DEBUG: registering breakpoint callback, id = 1
Error while trying to register breakpoint callback, id = 1, message = error: could not get num args: can't find callable: breakpoint_callback
run
run
Process 16577 stopped * thread #1, name = 'main', queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 frame #0: 0x0000000100003eb1 a`constant_ordering_prologue::binding::h6905e7563685df40(a=19, b=20, c=21.5) at constant-ordering-prologue.rs:30:9 27 // lldb-check: = 21.5 28 29 fn binding(a: i64, b: u64, c: f64) { -> 30 let x = 0; ^ 31 } 32 33 fn main() { Target 0: (a) stopped. Process 16577 launched: '/Users/runner/work/rust/rust/build/x86_64-apple-darwin/test/debuginfo/constant-ordering-prologue.lldb/a' (x86_64) 
(long) 19 
print b
(unsigned long) 20 
print c

[bors]

💔 Test failed - checks-actions

[jieyouxu]

2024-10-16T23:29:32.9094290Z failures:
2024-10-16T23:29:32.9095000Z     [debuginfo-lldb] tests/debuginfo/constant-ordering-prologue.rs

@bors r-

[bjorn3]

@bors r-

Bors got confused.