[INFO] cloning repository https://github.com/sdd/py03-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdd/py03-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdd%2Fpy03-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdd%2Fpy03-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d246ca34cb45b83e7a569c6b92222f3ca3cd4dc
[INFO] checking sdd/py03-bug against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdd%2Fpy03-bug" "/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/sdd/py03-bug
[INFO] finished tweaking git repo https://github.com/sdd/py03-bug
[INFO] tweaked toml for git repo https://github.com/sdd/py03-bug written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sdd/py03-bug on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sdd/py03-bug 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21bf4d6f8e24497b8f632fffb96e2054d1115d8b8ea9dfd0569482cdd6785381
[INFO] running `Command { std: "docker" "start" "-a" "21bf4d6f8e24497b8f632fffb96e2054d1115d8b8ea9dfd0569482cdd6785381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21bf4d6f8e24497b8f632fffb96e2054d1115d8b8ea9dfd0569482cdd6785381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21bf4d6f8e24497b8f632fffb96e2054d1115d8b8ea9dfd0569482cdd6785381", kill_on_drop: false }`
[INFO] [stdout] 21bf4d6f8e24497b8f632fffb96e2054d1115d8b8ea9dfd0569482cdd6785381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f89366ffaea21f2ca145a4c9f32bcf1cbffd598497a64ae6e3ad1774caea57c3
[INFO] running `Command { std: "docker" "start" "-a" "f89366ffaea21f2ca145a4c9f32bcf1cbffd598497a64ae6e3ad1774caea57c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
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[INFO] [stderr]    Compiling target-features v0.1.6
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[INFO] [stderr]     Checking repro_py03-polars_bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
[INFO] [stdout]   --> src/lib.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn repro_bug(_py: Python, m: &PyModule) -> PyResult<()> {
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PyDataFrame, Infallible>
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[pyfunction]
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the attribute macro `pyfunction` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `repro_py03-polars_bug` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
[INFO] [stdout]   --> src/lib.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn repro_bug(_py: Python, m: &PyModule) -> PyResult<()> {
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PyDataFrame, Infallible>
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[pyfunction]
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the attribute macro `pyfunction` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `repro_py03-polars_bug` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f89366ffaea21f2ca145a4c9f32bcf1cbffd598497a64ae6e3ad1774caea57c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89366ffaea21f2ca145a4c9f32bcf1cbffd598497a64ae6e3ad1774caea57c3", kill_on_drop: false }`
[INFO] [stdout] f89366ffaea21f2ca145a4c9f32bcf1cbffd598497a64ae6e3ad1774caea57c3