[INFO] fetching crate rx_rust_mp 1.0.0...
[INFO] testing rx_rust_mp-1.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rx_rust_mp 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rx_rust_mp 1.0.0
[INFO] finished tweaking crates.io crate rx_rust_mp 1.0.0
[INFO] tweaked toml for crates.io crate rx_rust_mp 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rx_rust_mp 1.0.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20b0afdb3e0086f4ec925e92cae3198f32de75c616f486e24b27bbb93691dc1a
[INFO] running `Command { std: "docker" "start" "-a" "20b0afdb3e0086f4ec925e92cae3198f32de75c616f486e24b27bbb93691dc1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20b0afdb3e0086f4ec925e92cae3198f32de75c616f486e24b27bbb93691dc1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b0afdb3e0086f4ec925e92cae3198f32de75c616f486e24b27bbb93691dc1a", kill_on_drop: false }`
[INFO] [stdout] 20b0afdb3e0086f4ec925e92cae3198f32de75c616f486e24b27bbb93691dc1a
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d834a2c4400cf78351d5073e78b3add3bf06616324d52bd84844d778cdda3586
[INFO] running `Command { std: "docker" "start" "-a" "d834a2c4400cf78351d5073e78b3add3bf06616324d52bd84844d778cdda3586", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling value-bag v1.11.1
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling async-executor v1.13.3
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling async-lock v3.4.1
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling async-signal v0.2.13
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-process v2.5.0
[INFO] [stderr]    Compiling async-std v1.13.2
[INFO] [stderr]    Compiling rx_rust_mp v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.13s
[INFO] running `Command { std: "docker" "inspect" "d834a2c4400cf78351d5073e78b3add3bf06616324d52bd84844d778cdda3586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d834a2c4400cf78351d5073e78b3add3bf06616324d52bd84844d778cdda3586", kill_on_drop: false }`
[INFO] [stdout] d834a2c4400cf78351d5073e78b3add3bf06616324d52bd84844d778cdda3586
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c3d785071d56cc5d5dfbc1f0c02aae90c17ea5dbcbe3d0ae81b583f3177314d
[INFO] running `Command { std: "docker" "start" "-a" "9c3d785071d56cc5d5dfbc1f0c02aae90c17ea5dbcbe3d0ae81b583f3177314d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rx_rust_mp v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `Command { std: "docker" "inspect" "9c3d785071d56cc5d5dfbc1f0c02aae90c17ea5dbcbe3d0ae81b583f3177314d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3d785071d56cc5d5dfbc1f0c02aae90c17ea5dbcbe3d0ae81b583f3177314d", kill_on_drop: false }`
[INFO] [stdout] 9c3d785071d56cc5d5dfbc1f0c02aae90c17ea5dbcbe3d0ae81b583f3177314d
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b34160684fece9f8b6c2e580e0bbdf77db3d75ea6bdc587da5067ada9e2a0848
[INFO] running `Command { std: "docker" "start" "-a" "b34160684fece9f8b6c2e580e0bbdf77db3d75ea6bdc587da5067ada9e2a0848", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rx_rust_mp-9372f59ecc4ee107)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test filter::tests::it_filters ... ok
[INFO] [stdout] test create::test::it_can_mut_access_external_state ... ok
[INFO] [stdout] test average::test::it_averages ... ok
[INFO] [stdout] test flatten::tests::it_flat_maps ... ok
[INFO] [stdout] test flatten::tests::it_groups_flattens ... ok
[INFO] [stdout] test create::test::it_creates ... ok
[INFO] [stdout] test flatten::tests::it_flattens ... ok
[INFO] [stdout] test group_by::tests::it_groups ... ok
[INFO] [stdout] test map::tests::it_maps ... ok
[INFO] [stdout] test reduce::tests::it_reduces ... ok
[INFO] [stdout] test observable::tests::it_can_mut_access_external_state ... ok
[INFO] [stdout] test merge::tests::it_merges ... ok
[INFO] [stdout] test sliding_window::tests::it_buffers_in_sliding_windows ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rx_rust_mp
[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] running `Command { std: "docker" "inspect" "b34160684fece9f8b6c2e580e0bbdf77db3d75ea6bdc587da5067ada9e2a0848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34160684fece9f8b6c2e580e0bbdf77db3d75ea6bdc587da5067ada9e2a0848", kill_on_drop: false }`
[INFO] [stdout] b34160684fece9f8b6c2e580e0bbdf77db3d75ea6bdc587da5067ada9e2a0848