The error you're encountering seems to occur during the build process for librdkafka, which is being built and linked statically as part of your Rust project that uses the rdkafka crate. Here's a breakdown of possible causes and solutions:
1. Resource temporarily unavailable (make[1]: *** read jobs pipe: Resource temporarily unavailable.)
This error suggests that the build process is hitting some system resource limits, possibly related to the number of parallel jobs make is trying to run. The default behavior of make is to run jobs in parallel, which can sometimes overwhelm system resources.
Solution:
Try limiting the number of jobs make runs in parallel by setting the MAKEFLAGS environment variable:
export MAKEFLAGS="-j1"Then try building the project again.
This warning (variable 'idx' set but not used) is generally not fatal but may indicate a problem in the code. Since this is part of the external library, you can ignore it unless it is causing the build to fail.
The build command is already disabling several features like ssl, gssapi, curl, zstd, and lz4-ext. If you do not need them, keeping them disabled is fine. However, ensure that your system has the required dependencies for the remaining features.
If the above steps do not help, running the build with RUST_BACKTRACE=1 can provide more detailed logs, which may help narrow down the issue:
RUST_BACKTRACE=1 cargo buildSince the error mentions resource limitations, check if your system is running out of file descriptors or other resources. You can check and adjust file descriptor limits using:
ulimit -nYou can increase the limit temporarily by running:
ulimit -n 8192Sometimes a clean build can resolve unexpected issues with stale files. You can try running:
cargo clean
cargo buildThese steps should help you resolve the issue. Let me know if it persists after trying them!