sccache makes cargo always rebuild dependencies

[apiraino]

Basic Information

sccache version: 0.2.8, tried also v0.2.9.alpha-0 commit 9e5df99
OS: Linux 5.0.0-17-generic #18-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux
cargo version; 1.37.0-nightly (545f35425 2019-05-23)
rustc version: 1.37.0-nightly (4edff843d 2019-06-16)

How to reproduce

$ echo $RUSTC_WRAPPER
sccache
$ git clone https://github.com/apiraino/cargo-sccache-build-bug

$ cargo check
$ cargo clean && cargo build
$ cargo build # unexpected rebuild of all packages

$ unset RUSTC_WRAPPER
$ cargo clean && cargo build
$ cargo build # does not rebuild all dependencies

$ export RUSTC_WRAPPER=sccache
$ cargo clean && cargo build
$ cargo build # rebuild again all dependencies

Logs

CARGO_LOG=trace cargo build &> log.log

log.log.gz

(Notice all those fingerprint error)

[theduke]

Duplicate of #436. This was fixed for me in #441.

You can install from git with cargo install --force --git=https://github.com/mozilla/sccache.

A new release would be very welcome.

[tesuji]

@apiraino, If you are using *nix, can you provide result of whereis sccache?
I am just unable to reproduce the problem on Linux.

[apiraino]

@theduke confirmed that installing from master branch delivers a fixed version 👍 And, yes, a release would be highly appreciated. Feel free to close this issue if it's not useful anymore.

@lzutao I can consistently reproduce the issue with the 0.2.8 installed with cargo install sccache:

$ whereis sccache
sccache: /home/$USER/.cargo/bin/sccache
$ sccache -V
sccache 0.2.8

By the way, updating from 0.2.8 > 0.2.9 seems to break the cache: I need to delete all cache before running these two versions.

[tesuji]

Okay then. You could close this issue. None of us has right (permission) to close it (Except owner and collaborators).

[apiraino]

Dupe of #436

[froydnj]

@theduke confirmed that installing from master branch delivers a fixed version +1 And, yes, a release would be highly appreciated. Feel free to close this issue if it's not useful anymore.

@chmanchester , are you up for attempting to walk through the release process?

By the way, updating from 0.2.8 > 0.2.9 seems to break the cache: I need to delete all cache before running these two versions.

@apiraino Can you file a bug on this? Even better if you can bisect it down to the offending commit.

[chmanchester]

@theduke confirmed that installing from master branch delivers a fixed version +1 And, yes, a release would be highly appreciated. Feel free to close this issue if it's not useful anymore.

@chmanchester , are you up for attempting to walk through the release process?

Sure, I'll take a look. I was hoping to get the patch sections removed but don't think that's going to happen soon.

[apiraino]

@apiraino Can you file a bug on this? Even better if you can bisect it down to the offending commit.

I'm not familiar with the codebase but I'll gladly give a try 👍