Failure to Compile when "lazy" & "ipc" features are used

[ethanmsl]

Checks

• [X] I have checked that this issue has not already been reported.
• [X] I have confirmed this bug exists on the latest version of Polars.

Reproducible example

Using both the "lazy" and "ipc" features together results in a failure to compile. This is easily reproduced.

Just:

cargo new --bin compile-failure
cd compile-failure
cargo add polars --features=lazy,ipc
cargo run

==============

[package]
name = "test-polars"
version = "0.1.0"
edition = "2021"

[dependencies]
polars = { version = "0.39.2", features = ["lazy","ipc"] }

fn main() {
    println!("hello... world?")
}

Log output

❯ POLARS_VERBOSE=1 cargo run
   Compiling polars-plan v0.39.2
error[E0412]: cannot find type `CloudOptions` in this scope
   --> /Users/esl/.cargo/registry/src/index.crates.io-6f17d22bba15001f/polars-plan-0.39.2/src/logical_plan/builder.rs:244:31
    |
244 |         cloud_options: Option<CloudOptions>,
    |                               ^^^^^^^^^^^^
    |
   ::: /Users/esl/.cargo/registry/src/index.crates.io-6f17d22bba15001f/polars-plan-0.39.2/src/dsl/options.rs:43:1
    |
43  | pub struct JoinOptions {
    | ---------------------- similarly named struct `JoinOptions` defined here
    |
help: a struct with a similar name exists
    |
244 |         cloud_options: Option<JoinOptions>,
    |                               ~~~~~~~~~~~
help: consider importing this struct
    |
1   + use polars_io::cloud::CloudOptions;
    |

error[E0425]: cannot find function `is_cloud_url` in this scope
   --> /Users/esl/.cargo/registry/src/index.crates.io-6f17d22bba15001f/polars-plan-0.39.2/src/logical_plan/functions/count.rs:131:20
    |
131 |     let is_cloud = is_cloud_url(paths.first().unwrap().as_path());
    |                    ^^^^^^^^^^^^ not found in this scope
    |
help: consider importing this function
    |
1   + use polars_io::is_cloud_url;
    |

error[E0425]: cannot find function `prepare_schema` in this scope
   --> /Users/esl/.cargo/registry/src/index.crates.io-6f17d22bba15001f/polars-plan-0.39.2/src/logical_plan/builder.rs:280:17
    |
280 |                 prepare_schema(metadata.schema.as_ref().into(), row_index.as_ref()),
    |                 ^^^^^^^^^^^^^^ not found in this scope

Some errors have detailed explanations: E0412, E0425.
For more information about an error, try `rustc --explain E0412`.
error: could not compile `polars-plan` (lib) due to 3 previous errors

Issue description

No compilation with both "lazy" && "ipc" features enabled. (either one alone does not seem to cause issue)

Expected behavior

Compilation. ;)

Installed versions

- cargo --version - cargo 1.78.0 (54d8815d0 2024-03-26) - rustup --version - rustup 1.27.1 (54dd3d00f 2024-04-24) - The currently active `rustc` version is - `rustc 1.78.0 (9b00956e5 2024-04-29)` - Polars: - 0.39.2

[mcrumiller]

I can't test this here but have you done a rustup update + cargo clean? This fixes most compilation issues.

[NickCondron]

I'm running into this (I tried update and clean). It also happens with features = ["lazy", "ipc-streaming"]. The issue goes away if you add the parquet feature.

git bisect reveals the troublesome commit to be bbaf341064718fabb535202959f627e7d4add0ff