[INFO] fetching crate wbt 0.3.2...
[INFO] fixing wbt-0.3.2 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate wbt 0.3.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate wbt 0.3.2
[INFO] finished tweaking crates.io crate wbt 0.3.2
[INFO] tweaked toml for crates.io crate wbt 0.3.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wbt 0.3.2 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wbt 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded python3-dll-a v0.2.15
[INFO] [stderr]   Downloaded polars-error v0.53.0
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[INFO] [stderr]   Downloaded polars-plan v0.53.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf
[INFO] running `Command { std: "docker" "start" "bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
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[INFO] [stderr]    Compiling polars v0.53.0
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[INFO] [stdout] error[E0432]: unresolved import `core::unicode::Cased`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-ops-0.53.0/src/chunked_array/strings/case.rs:79:45
[INFO] [stdout]    |
[INFO] [stdout] 79 |         use core::unicode::{Case_Ignorable, Cased};
[INFO] [stdout]    |                                             ^^^^^ no `Cased` in `unicode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: function `Case_Ignorable` is private
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-ops-0.53.0/src/chunked_array/strings/case.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 |         use core::unicode::{Case_Ignorable, Cased};
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ private function
[INFO] [stdout]    |
[INFO] [stdout] note: the function `Case_Ignorable` is defined here
[INFO] [stdout]   --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/core/src/unicode/mod.rs:11:15
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `polars-ops` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf", kill_on_drop: false }`
[INFO] [stdout] bfdca1eaefa782d569fef481930092cc9e0900039484f1fdac9ce083d6328baf
