[INFO] fetching crate pytarpc 0.2.0...
[INFO] testing pytarpc-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pytarpc 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate pytarpc 0.2.0
[INFO] finished tweaking crates.io crate pytarpc 0.2.0
[INFO] tweaked toml for crates.io crate pytarpc 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pytarpc 0.2.0 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] crate crates.io crate pytarpc 0.2.0 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" "+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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ea0371c4a15fd6dc0a33fc916cf4098aabc468e693ecbee0a101f095a00e8fc3
[INFO] running `Command { std: "docker" "start" "-a" "ea0371c4a15fd6dc0a33fc916cf4098aabc468e693ecbee0a101f095a00e8fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea0371c4a15fd6dc0a33fc916cf4098aabc468e693ecbee0a101f095a00e8fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0371c4a15fd6dc0a33fc916cf4098aabc468e693ecbee0a101f095a00e8fc3", kill_on_drop: false }`
[INFO] [stdout] ea0371c4a15fd6dc0a33fc916cf4098aabc468e693ecbee0a101f095a00e8fc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 68c2048c012bd5b3d198595d117297a5d93f6640be8397df895a8525e3a3dca7
[INFO] running `Command { std: "docker" "start" "-a" "68c2048c012bd5b3d198595d117297a5d93f6640be8397df895a8525e3a3dca7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling unindent v0.2.4
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]    Compiling pyo3-build-config v0.27.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling humantime v2.2.0
[INFO] [stderr]    Compiling opentelemetry-semantic-conventions v0.30.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling pyo3-macros-backend v0.27.1
[INFO] [stderr]    Compiling pyo3-ffi v0.27.1
[INFO] [stderr]    Compiling pyo3 v0.27.1
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling enum-ordinalize-derive v4.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tarpc-plugins v0.14.1
[INFO] [stderr]    Compiling pyo3-async-runtimes-macros v0.27.0
[INFO] [stderr]    Compiling enum-ordinalize v4.3.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling educe v0.5.11
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling opentelemetry v0.30.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling pyo3-macros v0.27.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling opentelemetry_sdk v0.30.0
[INFO] [stderr]    Compiling tracing-opentelemetry v0.31.0
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling tokio-serde v0.9.0
[INFO] [stderr]    Compiling tarpc v0.37.0
[INFO] [stderr]    Compiling pyo3-async-runtimes v0.27.0
[INFO] [stderr]    Compiling pytarpc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.12s
[INFO] running `Command { std: "docker" "inspect" "68c2048c012bd5b3d198595d117297a5d93f6640be8397df895a8525e3a3dca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c2048c012bd5b3d198595d117297a5d93f6640be8397df895a8525e3a3dca7", kill_on_drop: false }`
[INFO] [stdout] 68c2048c012bd5b3d198595d117297a5d93f6640be8397df895a8525e3a3dca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc074818415111d7d2c97c73150369fc12a6ebfcc7760441aa1768564ecc62c8
[INFO] running `Command { std: "docker" "start" "-a" "dc074818415111d7d2c97c73150369fc12a6ebfcc7760441aa1768564ecc62c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling pytarpc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "dc074818415111d7d2c97c73150369fc12a6ebfcc7760441aa1768564ecc62c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc074818415111d7d2c97c73150369fc12a6ebfcc7760441aa1768564ecc62c8", kill_on_drop: false }`
[INFO] [stdout] dc074818415111d7d2c97c73150369fc12a6ebfcc7760441aa1768564ecc62c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a9265bf7ad00b4f178bc9cc8df87a661e10fdf80ae87a1048843b99431c75f4
[INFO] running `Command { std: "docker" "start" "-a" "5a9265bf7ad00b4f178bc9cc8df87a661e10fdf80ae87a1048843b99431c75f4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pytarpc-17898e8653ab5246)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pytarpc
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 4) stdout ----
[INFO] [stdout] error: cannot find attribute `tarpc_python_client` in this scope
[INFO] [stdout]  --> src/lib.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[tarpc_python_client]
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `User` in this scope
[INFO] [stdout]   --> src/lib.rs:10:42
[INFO] [stdout]    |
[INFO] [stdout] 10 |     async fn get_user(id: u64) -> Option<User>;
[INFO] [stdout]    |                                          ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout]  7 | trait RpcAPI<User> {
[INFO] [stdout]    |             ++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `User` in this scope
[INFO] [stdout]   --> src/lib.rs:10:42
[INFO] [stdout]    |
[INFO] [stdout] 10 |     async fn get_user(id: u64) -> Option<User>;
[INFO] [stdout]    |                                          ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 4)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.72s; merged doctests compilation took 0.42s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "5a9265bf7ad00b4f178bc9cc8df87a661e10fdf80ae87a1048843b99431c75f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9265bf7ad00b4f178bc9cc8df87a661e10fdf80ae87a1048843b99431c75f4", kill_on_drop: false }`
[INFO] [stdout] 5a9265bf7ad00b4f178bc9cc8df87a661e10fdf80ae87a1048843b99431c75f4
