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Need to run x.py setup multiple times for it to create a config.toml #105215

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@kraktus

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@kraktus

On a fresh install on MacOS Ventura on a 2020 M1 MacBook Air, I had to run x.py setup multiple times before it creating a config.toml

$ x.py setup
...
Welcome to the Rust project! What do you want to do with x.py?
a) library: Contribute to the standard library
b) compiler: Contribute to the compiler itself
c) codegen: Contribute to the compiler, and also modify LLVM or codegen
d) tools: Contribute to tools which depend on the compiler, but do not modify it directly (e.g. rustdoc, clippy, miri)
e) user: Install Rust from source
Please choose one (a/b/c/d/e): a
Updating submodule src/tools/rust-installer
Submodule 'src/rust-installer' (https://github.com/rust-lang/rust-installer.git) registered for path 'src/tools/rust-installer'
Cloning into '/Users/kraktus/Github/rust/src/tools/rust-installer'...
remote: Enumerating objects: 53, done.        
remote: Counting objects: 100% (53/53), done.        
remote: Compressing objects: 100% (31/31), done.        
remote: Total 53 (delta 3), reused 38 (delta 0), pack-reused 0        
Receiving objects: 100% (53/53), 39.23 KiB | 146.00 KiB/s, done.
Resolving deltas: 100% (3/3), done.
remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: Enumerating objects: 5, done.
remote: Counting objects: 100% (5/5), done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 3 (delta 1), reused 1 (delta 0), pack-reused 0
Unpacking objects: 100% (3/3), 712 bytes | 178.00 KiB/s, done.
From https://github.com/rust-lang/rust-installer
 * branch            300b5ec61ef38855a07e6bb4955a37aa1c414c00 -> FETCH_HEAD
Submodule path 'src/tools/rust-installer': checked out '300b5ec61ef38855a07e6bb4955a37aa1c414c00'
No local changes to save
No stash entries found.
Build completed unsuccessfully in 0:27:00
$ x.py setup
...
Welcome to the Rust project! What do you want to do with x.py?
a) library: Contribute to the standard library
b) compiler: Contribute to the compiler itself
c) codegen: Contribute to the compiler, and also modify LLVM or codegen
d) tools: Contribute to tools which depend on the compiler, but do not modify it directly (e.g. rustdoc, clippy, miri)
e) user: Install Rust from source
Please choose one (a/b/c/d/e): a
Updating submodule src/tools/cargo
Submodule 'src/tools/cargo' (https://github.com/rust-lang/cargo.git) registered for path 'src/tools/cargo'
Cloning into '/Users/kraktus/Github/rust/src/tools/cargo'...
remote: Enumerating objects: 1738, done.        
remote: Counting objects: 100% (1738/1738), done.        
remote: Compressing objects: 100% (1201/1201), done.        
remote: Total 1738 (delta 453), reused 1057 (delta 362), pack-reused 0        
Receiving objects: 100% (1738/1738), 2.41 MiB | 4.54 MiB/s, done.
Resolving deltas: 100% (453/453), done.
Submodule path 'src/tools/cargo': checked out 'f6e737b1e3386adb89333bf06a01f68a91ac5306'
No local changes to save
No stash entries found.
Build completed unsuccessfully in 0:00:03
$ x.py setup
...
Welcome to the Rust project! What do you want to do with x.py?
a) library: Contribute to the standard library
b) compiler: Contribute to the compiler itself
c) codegen: Contribute to the compiler, and also modify LLVM or codegen
d) tools: Contribute to tools which depend on the compiler, but do not modify it directly (e.g. rustdoc, clippy, miri)
e) user: Install Rust from source
Please choose one (a/b/c/d/e): b
Updating submodule library/backtrace
Submodule 'library/backtrace' (https://github.com/rust-lang/backtrace-rs.git) registered for path 'library/backtrace'
Cloning into '/Users/kraktus/Github/rust/library/backtrace'...
remote: Enumerating objects: 140, done.        
remote: Counting objects: 100% (140/140), done.        
remote: Compressing objects: 100% (105/105), done.        
remote: Total 140 (delta 9), reused 77 (delta 4), pack-reused 0        
Receiving objects: 100% (140/140), 99.24 KiB | 4.31 MiB/s, done.
Resolving deltas: 100% (9/9), done.
remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: Enumerating objects: 29, done.
remote: Counting objects: 100% (29/29), done.
remote: Compressing objects: 100% (15/15), done.
remote: Total 15 (delta 13), reused 2 (delta 0), pack-reused 0
Unpacking objects: 100% (15/15), 2.07 KiB | 132.00 KiB/s, done.
From https://github.com/rust-lang/backtrace-rs
 * branch            07872f28cd8a65c3c7428811548dc85f1f2fb05b -> FETCH_HEAD
Submodule path 'library/backtrace': checked out '07872f28cd8a65c3c7428811548dc85f1f2fb05b'
No local changes to save
No stash entries found.
Build completed unsuccessfully in 0:00:05
$ x.py setup
...
Welcome to the Rust project! What do you want to do with x.py?
a) library: Contribute to the standard library
b) compiler: Contribute to the compiler itself
c) codegen: Contribute to the compiler, and also modify LLVM or codegen
d) tools: Contribute to tools which depend on the compiler, but do not modify it directly (e.g. rustdoc, clippy, miri)
e) user: Install Rust from source
Please choose one (a/b/c/d/e): b
Updating submodule library/stdarch
Submodule 'library/stdarch' (https://github.com/rust-lang/stdarch.git) registered for path 'library/stdarch'
Cloning into '/Users/kraktus/Github/rust/library/stdarch'...
remote: Enumerating objects: 311, done.        
remote: Counting objects: 100% (311/311), done.        
remote: Compressing objects: 100% (259/259), done.        
remote: Total 311 (delta 53), reused 147 (delta 19), pack-reused 0        
Receiving objects: 100% (311/311), 1.39 MiB | 4.80 MiB/s, done.
Resolving deltas: 100% (53/53), done.
remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: Enumerating objects: 189, done.
remote: Counting objects: 100% (189/189), done.
remote: Compressing objects: 100% (92/92), done.
remote: Total 104 (delta 64), reused 27 (delta 1), pack-reused 0
Receiving objects: 100% (104/104), 41.34 KiB | 10.33 MiB/s, done.
Resolving deltas: 100% (64/64), completed with 61 local objects.
From https://github.com/rust-lang/stdarch
 * branch            790411f93c4b5eada3c23abb4c9a063fb0b24d99 -> FETCH_HEAD
Submodule path 'library/stdarch': checked out '790411f93c4b5eada3c23abb4c9a063fb0b24d99'
Submodule 'crates/intrinsic-test/acle' (https://github.com/ARM-software/acle.git) registered for path 'library/stdarch/crates/intrinsic-test/acle'
Cloning into '/Users/kraktus/Github/rust/library/stdarch/crates/intrinsic-test/acle'...
remote: Enumerating objects: 87, done.        
remote: Counting objects: 100% (87/87), done.        
remote: Compressing objects: 100% (83/83), done.        
remote: Total 87 (delta 18), reused 33 (delta 1), pack-reused 0        
Receiving objects: 100% (87/87), 617.96 KiB | 1.03 MiB/s, done.
Resolving deltas: 100% (18/18), done.
remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: Enumerating objects: 67, done.
remote: Counting objects: 100% (67/67), done.
remote: Compressing objects: 100% (38/38), done.
remote: Total 40 (delta 25), reused 4 (delta 0), pack-reused 0
Unpacking objects: 100% (40/40), 254.67 KiB | 1.09 MiB/s, done.
From https://github.com/ARM-software/acle
 * branch            5626f85f469f419db16f20b1614863aeb377c22b -> FETCH_HEAD
Submodule path 'library/stdarch/crates/intrinsic-test/acle': checked out '5626f85f469f419db16f20b1614863aeb377c22b'
No local changes to save
No stash entries found.
Build completed unsuccessfully in 0:00:09

The last one, with -v setup

$ x.py setup -v
...
Welcome to the Rust project! What do you want to do with x.py?
a) library: Contribute to the standard library
b) compiler: Contribute to the compiler itself
c) codegen: Contribute to the compiler, and also modify LLVM or codegen
d) tools: Contribute to tools which depend on the compiler, but do not modify it directly (e.g. rustdoc, clippy, miri)
e) user: Install Rust from source
Please choose one (a/b/c/d/e): a
finding compilers
CC_aarch64-apple-darwin = "cc"
CFLAGS_aarch64-apple-darwin = ["-ffunction-sections", "-fdata-sections", "-fPIC", "-arch", "arm64", "-stdlib=libc++"]
CXX_aarch64-apple-darwin = "c++"
CXXFLAGS_aarch64-apple-darwin = ["-ffunction-sections", "-fdata-sections", "-fPIC", "-arch", "arm64", "-stdlib=libc++"]
AR_aarch64-apple-darwin = "ar"
learning about cargo
`x.py` will now use the configuration at /Users/kraktus/Github/rust/src/bootstrap/defaults/config.library.toml

`stage1` toolchain already linked; not attempting to link `stage1` toolchain

Rust's CI will automatically fail if it doesn't pass `tidy`, the internal tool for ensuring code quality.
If you'd like, x.py can install a git hook for you that will automatically run `tidy --bless` before
pushing your code to ensure your code is up to par. If you decide later that this behavior is
undesirable, simply delete the `pre-push` file from .git/hooks.
Would you like to install the git hook?: [y/N] y
Linked `src/etc/pre-push.sh` to `.git/hooks/pre-push`

To get started, try one of the following commands:
- `x.py check`
- `x.py build`
- `x.py test library/std`
- `x.py doc`
For more suggestions, see https://rustc-dev-guide.rust-lang.org/building/suggested.html
Build completed successfully in 0:00:36

Note that the output is different every time, and that a different submodule is updated

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    C-bugCategory: This is a bug.T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

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