"Can't parse" error

[magnusmanske]

Did a cargo update, now my pool get_conn throws these errors:

Io(Custom { kind: UnexpectedEof, error: "can't parse: buf doesn't have enough data" })

Reverted to the previous Cargo.toml, works fine. Not sure if it's mysql_async or a dependent package, but I can't debug it more fine-grained at the moment.

[magnusmanske]

Here is the commit that broke things: magnusmanske/mixnmatch_rs@b0115ef

[magnusmanske]

Might be related to https://gitter.im/rust-mysql/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge

[blackbeam]

@magnusmanske, hi.

Did a cargo update, now my pool get_conn throws these errors

Could you please inspect Cargo.lock and give me old and new versions of updated mysql_* packages?

Here is the commit that broke things: magnusmanske/mixnmatch_rs@b0115ef

You meant that things goes OK if cargo update is performed but this commit is reverted?
Is it broken if Cargo.toml is reverted to the previous version an the commit is applyed?

[magnusmanske]

Yes, so

name = "mysql_common"
version = "0.29.1"
version = "0.29.2"

breaks things. Again, not sure this specific package is the root cause.

[magnusmanske]

0.29.1 works, 0.29.2 does not

[blackbeam]

Oh, forgot to ask your MySql version.

[magnusmanske]

10.1.39-MariaDB

[blackbeam]

@magnusmanske, could you please patch your Cargo.toml and reproduce this?
I'm interested in the updated error message.

[patch.crates-io]
regex = { git = "https://github.com/blackbeam/rust_mysql_common.git", branch = "de-error" }

[magnusmanske]

Am I doing something wrong?

> cargo update
    Updating git repository `https://github.com/blackbeam/rust_mysql_common.git`
error: failed to resolve patches for `https://github.com/rust-lang/crates.io-index`

Caused by:
  patch for `regex` in `https://github.com/rust-lang/crates.io-index` failed to resolve

Caused by:
  The patch location `https://github.com/blackbeam/rust_mysql_common.git?branch=de-error` does not appear to contain any packages matching the name `regex`.

[blackbeam]

Oh, sorry. Copy-paste error.

[patch.crates-io]
mysql_common = { git = "https://github.com/blackbeam/rust_mysql_common.git", branch = "de-error" }

[magnusmanske]

I get a warning but it runs:

warning: Patch `mysql_common v0.29.2 (https://github.com/blackbeam/rust_mysql_common.git?branch=de-error#bf1ba6df)` was not used in the crate graph.
Check that the patched package version and available features are compatible
with the dependency requirements. If the patch has a different version from
what is locked in the Cargo.lock file, run `cargo update` to use the new
version. This may also occur with an optional dependency that is not enabled.

Seems to work with that patch...

[blackbeam]

Seems like it suggests to run cargo update to apply the patch. I believe for now it works on mysql_common v0.29.1 from crates.io.

[blackbeam]

Sorry for bothering you, but I couldn't reproduce this myself – tried on MariaDb 10.1.39 with two pools connected to two distinct db instances in multi-threaded tokio runtime – no luck.

[magnusmanske]

Update: I have run cargo update again today, now it seems to work. Maybe some odd incompatibility with another create. Anyway, seems to work now, thanks!