Rollup of 6 pull requests

[matthiaskrgr]

Successful merges:

• Add compiler error E0523 long description and test #100599 (Add compiler error E0523 long description and test)
• Modify existing bounds if they exist #107555 (Modify existing bounds if they exist)
• Add nicer output to PGO build timer #107596 (Add nicer output to PGO build timer)
• Turn projections into copies in CopyProp. #107662 (Turn projections into copies in CopyProp.)
• Run the tools builder on all PRs #107700 (Run the tools builder on all PRs)
• Mark 'atomic_mut_ptr' methods const #107706 (Mark 'atomic_mut_ptr' methods const)

Failed merges:

r? @ghost
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