Failed to remove rcgu: no such file or directory

[cramertj]

Discovered when investigating #53794. When rustc is run, the following errors result:

error: failed to remove /usr/local/google/home/cramertj/src/tmp/link-error-repro/out_bin.2iwg8cehlsr9x4yn.rcgu.o: No such file or directory (os error 2)

error: failed to remove /usr/local/google/home/cramertj/src/tmp/link-error-repro/out_bin.2pkbt36vpf5knaqz.rcgu.o: No such file or directory (os error 2)

error: failed to remove /usr/local/google/home/cramertj/src/tmp/link-error-repro/out_bin.3qtydzyditwwd0wd.rcgu.o: No such file or directory (os error 2)

error: failed to remove /usr/local/google/home/cramertj/src/tmp/link-error-repro/out_bin.52wfm87ulo3v297x.rcgu.o: No such file or directory (os error 2)

error: failed to remove /usr/local/google/home/cramertj/src/tmp/link-error-repro/out_bin.57gef1f2kxtrvbuy.rcgu.o: No such file or directory (os error 2)

error: aborting due to 5 previous errors

To repro, check out cramertj/link-error-repro@b4b055c, grab rustc 1.30.0-nightly (6e0f1cc15 2018-09-05), and run ./clone_sdk.sh && ./build_deps.sh && ./build_bin.sh. If using a different rustc, the hashes in ./build_bin.sh will need to be adjusted to match the suffixes of libstructopt and librand in the target/ dir.

[cramertj]

Full logs are here

[matthiaskrgr]

Just got this too (rustc 1.30.0-nightly (fc81e36 2018-09-07), however my crate use monolithic lto

   [profile.release]
   lto = true
   codegen-units = 1

I thought this would be a thinlto problem?

[alexcrichton]

I've confirmed this is a duplicate of #53794 (comment), so closing in favor of that.