[INFO] cloning repository https://github.com/kyu-theori/df2md
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyu-theori/df2md" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyu-theori%2Fdf2md", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyu-theori%2Fdf2md'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd11dc0f0ca2d9578f9d956b0c0c276da571e109
[INFO] checking kyu-theori/df2md against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyu-theori%2Fdf2md" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kyu-theori/df2md
[INFO] finished tweaking git repo https://github.com/kyu-theori/df2md
[INFO] tweaked toml for git repo https://github.com/kyu-theori/df2md written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kyu-theori/df2md on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kyu-theori/df2md 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758
[INFO] running `Command { std: "docker" "start" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758", 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" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758", 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=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
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[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
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[INFO] [stderr]    Compiling parking_lot_core v0.9.12
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[INFO] [stderr]    Compiling polars-ops v0.53.0
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[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling psm v0.1.31
[INFO] [stderr]     Checking bytemuck v1.25.0
[INFO] [stderr]    Compiling pyo3-macros v0.27.2
[INFO] [stderr]     Checking polars-arrow-format v0.2.1
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[INFO] [stderr]     Checking polars-error v0.53.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking half v2.7.1
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[INFO] [stderr]     Checking argminmax v0.6.3
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking polars-dtype v0.53.0
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[INFO] [stderr]     Checking polars-io v0.53.0
[INFO] [stderr]     Checking pyo3-polars v0.26.0
[INFO] [stderr]     Checking df2md v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:15:50
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn _format_dataframe(df: PyDataFrame) -> PyResult<String> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:15:50
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn _format_dataframe(df: PyDataFrame) -> PyResult<String> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `df2md` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `df2md` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758", kill_on_drop: false }`
[INFO] [stdout] 0e44834bc0c4606c67738afa70c16c646f3a002bc8085361c8e2e6dfa0966758
