[INFO] fetching crate llmux 2.4.0...
[INFO] testing llmux-2.4.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate llmux 2.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate llmux 2.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate llmux 2.4.0
[INFO] tweaked toml for crates.io crate llmux 2.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate llmux 2.4.0 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 llmux 2.4.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6a1498c3b3ef68392000936f7b7d2e2d115509087600becd43116b0f408dc057
[INFO] running `Command { std: "docker" "start" "-a" "6a1498c3b3ef68392000936f7b7d2e2d115509087600becd43116b0f408dc057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a1498c3b3ef68392000936f7b7d2e2d115509087600becd43116b0f408dc057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1498c3b3ef68392000936f7b7d2e2d115509087600becd43116b0f408dc057", kill_on_drop: false }`
[INFO] [stdout] 6a1498c3b3ef68392000936f7b7d2e2d115509087600becd43116b0f408dc057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 63eb9065e262cdb0c54ec96c3cb6b9d4675700a2044c35bff3845de224fb2a7a
[INFO] running `Command { std: "docker" "start" "-a" "63eb9065e262cdb0c54ec96c3cb6b9d4675700a2044c35bff3845de224fb2a7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]    Compiling aws-lc-rs v1.16.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling clap_lex v1.0.0
[INFO] [stderr]    Compiling sketches-ddsketch v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling clap_builder v4.5.60
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling socket2 v0.6.2
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling quanta v0.12.6
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling rand_xoshiro v0.7.0
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling cmake v0.1.57
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling aws-lc-sys v0.37.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling metrics v0.24.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.55
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.49.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling metrics-util v0.19.1
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling axum-core v0.5.6
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling clap v4.5.60
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling tower v0.5.3
[INFO] [stderr]    Compiling h2 v0.4.13
[INFO] [stderr]    Compiling rustls-webpki v0.103.9
[INFO] [stderr]    Compiling hyper v1.8.1
[INFO] [stderr]    Compiling hyper-util v0.1.20
[INFO] [stderr]    Compiling axum v0.8.8
[INFO] [stderr]    Compiling tokio-rustls v0.26.4
[INFO] [stderr]    Compiling hyper-rustls v0.27.7
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.16.2
[INFO] [stderr]    Compiling llmux v2.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "63eb9065e262cdb0c54ec96c3cb6b9d4675700a2044c35bff3845de224fb2a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63eb9065e262cdb0c54ec96c3cb6b9d4675700a2044c35bff3845de224fb2a7a", kill_on_drop: false }`
[INFO] [stdout] 63eb9065e262cdb0c54ec96c3cb6b9d4675700a2044c35bff3845de224fb2a7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6293cf09bd61f50d150aa75cf8e1b22453b56e11716514b8dd1d79467ddb4f46
[INFO] running `Command { std: "docker" "start" "-a" "6293cf09bd61f50d150aa75cf8e1b22453b56e11716514b8dd1d79467ddb4f46", kill_on_drop: false }`
[INFO] [stderr]    Compiling llmux v2.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.29s
[INFO] running `Command { std: "docker" "inspect" "6293cf09bd61f50d150aa75cf8e1b22453b56e11716514b8dd1d79467ddb4f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6293cf09bd61f50d150aa75cf8e1b22453b56e11716514b8dd1d79467ddb4f46", kill_on_drop: false }`
[INFO] [stdout] 6293cf09bd61f50d150aa75cf8e1b22453b56e11716514b8dd1d79467ddb4f46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a140036467afe4548057b29baa5f21122aae82a0b7a1be95da047a16f3dabcc6
[INFO] running `Command { std: "docker" "start" "-a" "a140036467afe4548057b29baa5f21122aae82a0b7a1be95da047a16f3dabcc6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/llmux-53aac755143bd93b)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test config::tests::test_parse_yaml ... ok
[INFO] [stdout] test config::tests::test_defaults ... ok
[INFO] [stdout] test cost::tests::cold_start_tracked_separately ... ok
[INFO] [stdout] test cost::tests::estimates_from_filters_correctly ... ok
[INFO] [stdout] test cost::tests::unknown_pair_returns_none ... ok
[INFO] [stdout] test middleware::tests::test_extract_model_from_body ... ok
[INFO] [stdout] test middleware::tests::test_extract_model_none ... ok
[INFO] [stdout] test switcher::tests::test_force_switch_unknown_model ... ok
[INFO] [stdout] test cost::tests::ema_smooths_subsequent_observations ... ok
[INFO] [stdout] test switcher::tests::test_in_flight_tracking ... ok
[INFO] [stdout] test switcher::tests::test_switcher_creation ... ok
[INFO] [stdout] test switcher::tests::test_model_port ... ok
[INFO] [stdout] test switcher::tests::test_force_switch_already_active ... ok
[INFO] [stdout] test switcher::tests::test_acquire_in_flight_rejected_while_draining ... ok
[INFO] [stdout] test config::tests::test_parse_json ... ok
[INFO] [stdout] test cost::tests::first_observation_is_exact ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/llmux-4202555b68bacc13)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/e2e.rs (/opt/rustwide/target/debug/deps/e2e-3d18872713150ee1)
[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] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_list_models ... ok
[INFO] [stdout] test test_single_model_request ... ok
[INFO] [stdout] test test_same_model_no_switch ... ok
[INFO] [stdout] test test_unknown_model ... ok
[INFO] [stdout] test test_model_switch ... ok
[INFO] [stdout] test test_concurrent_same_model ... ok
[INFO] [stdout] test test_concurrent_different_models ... ok
[INFO] [stdout] test test_switch_cost_tracking ... ok
[INFO] [stderr]    Doc-tests llmux
[INFO] [stdout] test test_switch_timing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[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" "a140036467afe4548057b29baa5f21122aae82a0b7a1be95da047a16f3dabcc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a140036467afe4548057b29baa5f21122aae82a0b7a1be95da047a16f3dabcc6", kill_on_drop: false }`
[INFO] [stdout] a140036467afe4548057b29baa5f21122aae82a0b7a1be95da047a16f3dabcc6
