[INFO] fetching crate shuttle-mcp 0.57.2...
[INFO] testing shuttle-mcp-0.57.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate shuttle-mcp 0.57.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate shuttle-mcp 0.57.2
[INFO] finished tweaking crates.io crate shuttle-mcp 0.57.2
[INFO] tweaked toml for crates.io crate shuttle-mcp 0.57.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shuttle-mcp 0.57.2 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] crate crates.io crate shuttle-mcp 0.57.2 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-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] 6274006c70ec78e5aa33df556fdbd8a56cfc1b92e316dde60fe029e2989eca25
[INFO] running `Command { std: "docker" "start" "-a" "6274006c70ec78e5aa33df556fdbd8a56cfc1b92e316dde60fe029e2989eca25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6274006c70ec78e5aa33df556fdbd8a56cfc1b92e316dde60fe029e2989eca25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6274006c70ec78e5aa33df556fdbd8a56cfc1b92e316dde60fe029e2989eca25", kill_on_drop: false }`
[INFO] [stdout] 6274006c70ec78e5aa33df556fdbd8a56cfc1b92e316dde60fe029e2989eca25
[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] cf580721b288817e95cf547f09af678e1eea93768f3d2060747417f64ddcd375
[INFO] running `Command { std: "docker" "start" "-a" "cf580721b288817e95cf547f09af678e1eea93768f3d2060747417f64ddcd375", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling find-msvc-tools v0.1.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling cc v1.2.36
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[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 ring v0.17.14
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling schemars_derive v1.0.4
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling zerovec v0.11.4
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling rustls-webpki v0.103.4
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling potential_utf v0.1.3
[INFO] [stderr]    Compiling icu_collections v2.0.0
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling rmcp-macros v0.6.3
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]    Compiling icu_provider v2.0.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling icu_properties v2.0.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling hyper v1.7.0
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling tower-http v0.6.6
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling hyper-util v0.1.16
[INFO] [stderr]    Compiling tokio-rustls v0.26.2
[INFO] [stderr]    Compiling schemars v1.0.4
[INFO] [stderr]    Compiling hyper-rustls v0.27.7
[INFO] [stderr]    Compiling reqwest v0.12.23
[INFO] [stderr]    Compiling rmcp v0.6.3
[INFO] [stderr]    Compiling shuttle-mcp v0.57.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "cf580721b288817e95cf547f09af678e1eea93768f3d2060747417f64ddcd375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf580721b288817e95cf547f09af678e1eea93768f3d2060747417f64ddcd375", kill_on_drop: false }`
[INFO] [stdout] cf580721b288817e95cf547f09af678e1eea93768f3d2060747417f64ddcd375
[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] 9b31ad6d6f6d3295e33a2400b7742b3f154a646dd51ca1e87a641e5fb7c5e1a7
[INFO] running `Command { std: "docker" "start" "-a" "9b31ad6d6f6d3295e33a2400b7742b3f154a646dd51ca1e87a641e5fb7c5e1a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling shuttle-mcp v0.57.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.95s
[INFO] running `Command { std: "docker" "inspect" "9b31ad6d6f6d3295e33a2400b7742b3f154a646dd51ca1e87a641e5fb7c5e1a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b31ad6d6f6d3295e33a2400b7742b3f154a646dd51ca1e87a641e5fb7c5e1a7", kill_on_drop: false }`
[INFO] [stdout] 9b31ad6d6f6d3295e33a2400b7742b3f154a646dd51ca1e87a641e5fb7c5e1a7
[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] d373e5163ba85feeaeadd5ba5ecb07f3780c579c1bc14c80573f72eb059cf08b
[INFO] running `Command { std: "docker" "start" "-a" "d373e5163ba85feeaeadd5ba5ecb07f3780c579c1bc14c80573f72eb059cf08b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shuttle_mcp-4e33a4e94b28e7c9)
[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 shuttle_mcp
[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" "d373e5163ba85feeaeadd5ba5ecb07f3780c579c1bc14c80573f72eb059cf08b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d373e5163ba85feeaeadd5ba5ecb07f3780c579c1bc14c80573f72eb059cf08b", kill_on_drop: false }`
[INFO] [stdout] d373e5163ba85feeaeadd5ba5ecb07f3780c579c1bc14c80573f72eb059cf08b