[INFO] fetching crate rillrate-py 0.40.0...
[INFO] testing rillrate-py-0.40.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rillrate-py 0.40.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rillrate-py 0.40.0
[INFO] finished tweaking crates.io crate rillrate-py 0.40.0
[INFO] tweaked toml for crates.io crate rillrate-py 0.40.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rillrate-py 0.40.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 282 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.14.5 (available: v0.28.3)
[INFO] [stderr]       Adding rill-protocol v0.40.0 (available: v0.41.0)
[INFO] [stderr]       Adding rillrate v0.40.0 (available: v0.41.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d030c2e07b334fca4bafb0898aa70ac7eeb50e59d4928004187c3e7008c06f26
[INFO] running `Command { std: "docker" "start" "-a" "d030c2e07b334fca4bafb0898aa70ac7eeb50e59d4928004187c3e7008c06f26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d030c2e07b334fca4bafb0898aa70ac7eeb50e59d4928004187c3e7008c06f26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d030c2e07b334fca4bafb0898aa70ac7eeb50e59d4928004187c3e7008c06f26", kill_on_drop: false }`
[INFO] [stdout] d030c2e07b334fca4bafb0898aa70ac7eeb50e59d4928004187c3e7008c06f26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a6c68737e334cd480aa35be84af52c219330c22b993043ce2ae2e39bcb136e7
[INFO] running `Command { std: "docker" "start" "-a" "1a6c68737e334cd480aa35be84af52c219330c22b993043ce2ae2e39bcb136e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling pin-project-internal v1.1.11
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling tungstenite v0.14.0
[INFO] [stderr]    Compiling headers v0.3.9
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling metacrate v0.1.2
[INFO] [stderr]    Compiling unicase v2.9.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling filetime v0.2.27
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling simd-adler32 v0.3.9
[INFO] [stderr]    Compiling pin-project v1.1.11
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling pyo3 v0.14.5
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling typed-slab v0.1.8
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling xattr v1.6.1
[INFO] [stderr]    Compiling notify v5.2.0
[INFO] [stderr]    Compiling tar v0.4.45
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling meio-protocol v0.94.0
[INFO] [stderr]    Compiling vectorize v0.2.0
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling serde_qs v0.8.5
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling envy v0.4.2
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling pyo3-macros-backend v0.14.5
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling rill-derive v0.40.0
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling pyo3-macros v0.14.5
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling tokio-util v0.6.10
[INFO] [stderr]    Compiling tokio-tungstenite v0.15.0
[INFO] [stderr]    Compiling tokio-stream v0.1.18
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling h2 v0.3.27
[INFO] [stderr]    Compiling num_enum v0.5.11
[INFO] [stderr]    Compiling flexbuffers v2.0.0
[INFO] [stderr]    Compiling meio v0.94.0
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `PyUnicode_READY` in module `ffi`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pyo3-0.14.5/src/types/string.rs:234:30
[INFO] [stdout]     |
[INFO] [stdout] 234 |             let ready = ffi::PyUnicode_READY(ptr);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pyo3-0.14.5/src/ffi/cpython/unicodeobject.rs:224:1
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub unsafe fn PyUnicode_IS_READY(op: *mut PyObject) -> c_uint {
[INFO] [stdout]     | ------------------------------------------------------------- similarly named function `PyUnicode_IS_READY` defined here
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pyo3-0.14.5/src/ffi/cpython/unicodeobject.rs:232:15
[INFO] [stdout]     |
[INFO] [stdout] 228 | #[cfg(not(Py_3_12))]
[INFO] [stdout]     |          --------- the item is gated here
[INFO] [stdout] ...
[INFO] [stdout] 232 | pub unsafe fn PyUnicode_READY(op: *mut PyObject) -> c_int {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 234 |             let ready = ffi::PyUnicode_IS_READY(ptr);
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling rill-protocol v0.40.0
[INFO] [stderr]    Compiling rate-config v0.40.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling hyper v0.14.32
[INFO] [stderr] error: could not compile `pyo3` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1a6c68737e334cd480aa35be84af52c219330c22b993043ce2ae2e39bcb136e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6c68737e334cd480aa35be84af52c219330c22b993043ce2ae2e39bcb136e7", kill_on_drop: false }`
[INFO] [stdout] 1a6c68737e334cd480aa35be84af52c219330c22b993043ce2ae2e39bcb136e7
