[jira] [Comment Edited] (ARROW-2563) [Rust] Poor caching in Travis-CI

["Antoine Pitrou (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-2563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16469214#comment-16469214 ] 

Antoine Pitrou edited comment on ARROW-2563 at 5/9/18 6:04 PM:
---------------------------------------------------------------

However, it seems that the caching causes a failure in {{cargo coverage}}: see https://travis-ci.org/pitrou/arrow/jobs/376900556#L717

I'll let others take this up if there's interest, as this is not my area of expertise at all. [~andygrove]


was (Author: pitrou):
However, it seems that the caching causes a failure in {{cargo coverage}}: see https://travis-ci.org/pitrou/arrow/jobs/376900556#L717

I'll let others this up if there's interest, as this is not my area of expertise at all. [~andygrove]

> [Rust] Poor caching in Travis-CI
> --------------------------------
>
>                 Key: ARROW-2563
>                 URL: https://issues.apache.org/jira/browse/ARROW-2563
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Continuous Integration, Rust
>            Reporter: Antoine Pitrou
>            Priority: Major
>
> Since the Rust project isn't at the repo root, Travis-CI won't compiled cache artifacts by default. This leads to long CI times as all packages get recompiled (see https://docs.travis-ci.com/user/caching/#Rust-Cargo-cache for what gets cached).
> In https://travis-ci.org/pitrou/arrow/jobs/376859806 I tried the following:
> {code}
> export CARGO_TARGET_DIR=$TRAVIS_BUILD_DIR/target
> {code}
> and after a first run, the build time went down to 2 minutes (from 15-18 minutes).



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