Build failed. If you want to re-trigger a documentation build, you can do it here. You can find more information on docs.rs builds documentation on the builds page.
# error kind ExecutionFailed
# pre-build errors command failed: exit status: 101
# rustc version rustc 1.96.0-nightly (7e46c5f6f 2026-04-01)
# docs.rs version docsrs 0.0.0 (da7690ee 2026-03-15 )
# build log [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace-builder4/builds/rust-data-processing-0.1.5/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace-builder4/builds/rust-data-processing-0.1.5/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace-builder4/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace-builder4/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "6442450944" "--cpus" "6" "--user" "1001:1001" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260401-1.96.0-nightly-7e46c5f6f\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ccc4f4313baea4736744696c24679f736bf6db3dbe59358dfbe049f013607418 [INFO] running `Command { std: "docker" "start" "-a" "ccc4f4313baea4736744696c24679f736bf6db3dbe59358dfbe049f013607418", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Checking polars-ops v0.53.0 [INFO] [stderr] error[E0603]: function `Case_Ignorable` is private [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-ops-0.53.0/src/chunked_array/strings/case.rs:79:29 [INFO] [stderr] | [INFO] [stderr] 79 | use core::unicode::{Case_Ignorable, Cased}; [INFO] [stderr] | ^^^^^^^^^^^^^^ private function [INFO] [stderr] | [INFO] [stderr] note: the function `Case_Ignorable` is defined here [INFO] [stderr] --> /opt/rustwide/rustup-home/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/unicode/mod.rs:11:16 [INFO] [stderr] | [INFO] [stderr] 11 | pub(crate) use unicode_data::case_ignorable::lookup as Case_Ignorable; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] help: import `Case_Ignorable` directly [INFO] [stderr] | [INFO] [stderr] 79 - use core::unicode::{Case_Ignorable, Cased}; [INFO] [stderr] 79 + use core::unicode::{core::unicode::unicode_data::case_ignorable::lookup, Cased}; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] error[E0603]: function `Cased` is private [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-ops-0.53.0/src/chunked_array/strings/case.rs:79:45 [INFO] [stderr] | [INFO] [stderr] 79 | use core::unicode::{Case_Ignorable, Cased}; [INFO] [stderr] | ^^^^^ private function [INFO] [stderr] | [INFO] [stderr] note: the function `Cased` is defined here [INFO] [stderr] --> /opt/rustwide/rustup-home/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/unicode/mod.rs:12:16 [INFO] [stderr] | [INFO] [stderr] 12 | pub(crate) use unicode_data::cased::lookup as Cased; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] help: import `Cased` directly [INFO] [stderr] | [INFO] [stderr] 79 - use core::unicode::{Case_Ignorable, Cased}; [INFO] [stderr] 79 + use core::unicode::{Case_Ignorable, core::unicode::unicode_data::cased::lookup}; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0603`. [INFO] [stderr] error: could not compile `polars-ops` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "ccc4f4313baea4736744696c24679f736bf6db3dbe59358dfbe049f013607418", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ccc4f4313baea4736744696c24679f736bf6db3dbe59358dfbe049f013607418", kill_on_drop: false }` [INFO] [stdout] ccc4f4313baea4736744696c24679f736bf6db3dbe59358dfbe049f013607418