move stage0.txt to toplevel directory

[Keruspe]

This way all files needed by packagers now reside in toplevel

[rust-highfive]

r? @nikomatsakis

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[Mark-Simulacrum]

Is there a particular advantage to doing this? I wasn't aware that packagers cared too much about this -- I personally prefer to have as few top-level files as possible.

r? @alexcrichton

[alexcrichton]

@bors: r+

Eh I don't feel too strongly either way about this, so seems fine to me!

[bors]

📌 Commit c4e0b89 has been approved by alexcrichton

[Mark-Simulacrum]

@bors rollup

[kennytm]

@bors r-

This failed x86_64-gnu-distcheck in #56376 (comment), because the new stage0.txt is not in the source tarball.

[Keruspe]

@Mark-Simulacrum It's mainly to make things "easier" for packagers. We use this for bootstrapping.

@kennytm should be fixed new

[kennytm]

@bors r=alexcrichton

[bors]

📌 Commit 610dcb4 has been approved by alexcrichton

[pietroalbini]

@bors r-

Caused the rollup to fail:

[00:11:10] configure: run `python /checkout/obj/build/tmp/distcheck/x.py --help`
[00:11:10] configure: 
[00:11:10] Traceback (most recent call last):
[00:11:10]   File "/checkout/obj/build/tmp/distcheck/src/bootstrap/bootstrap.py", line 870, in <module>
[00:11:10]     main()
[00:11:10]   File "/checkout/obj/build/tmp/distcheck/src/bootstrap/bootstrap.py", line 853, in main
[00:11:10]     bootstrap(help_triggered)
[00:11:10]   File "/checkout/obj/build/tmp/distcheck/src/bootstrap/bootstrap.py", line 810, in bootstrap
[00:11:10]     data = stage0_data(build.rust_root)
[00:11:10]   File "/checkout/obj/build/tmp/distcheck/src/bootstrap/bootstrap.py", line 158, in stage0_data
[00:11:10]     with open(nightlies, 'r') as nightlies:
[00:11:10] IOError: [Errno 2] No such file or directory: '/checkout/obj/build/tmp/distcheck/stage0.txt'
[00:11:10] Makefile:58: recipe for target 'check' failed

[Keruspe]

Well, it should have been a trivial change and it already made two rollups fail.

Definitely not worth it to keep trying, sorry about that guys!