[INFO] fetching crate rmcp-agent 0.1.6...
[INFO] checking rmcp-agent-0.1.6 against try#bac5816c5f3d02cebd0599070af62d1782530294 for pr-150408
[INFO] extracting crate rmcp-agent 0.1.6 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rmcp-agent 0.1.6
[INFO] finished tweaking crates.io crate rmcp-agent 0.1.6
[INFO] tweaked toml for crates.io crate rmcp-agent 0.1.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmcp-agent 0.1.6 on toolchain bac5816c5f3d02cebd0599070af62d1782530294
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rmcp-agent 0.1.6 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" "+bac5816c5f3d02cebd0599070af62d1782530294" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 599d91e5c5ad1f05f57eaeacffebb7fe7d5afea4462a9361926442242678b105
[INFO] running `Command { std: "docker" "start" "-a" "599d91e5c5ad1f05f57eaeacffebb7fe7d5afea4462a9361926442242678b105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "599d91e5c5ad1f05f57eaeacffebb7fe7d5afea4462a9361926442242678b105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "599d91e5c5ad1f05f57eaeacffebb7fe7d5afea4462a9361926442242678b105", kill_on_drop: false }`
[INFO] [stdout] 599d91e5c5ad1f05f57eaeacffebb7fe7d5afea4462a9361926442242678b105
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 046563d970a5f4bc7b2d6e4218ec7cc7d05dbd3aa2aa5295d6cf083f1bda5bb4
[INFO] running `Command { std: "docker" "start" "-a" "046563d970a5f4bc7b2d6e4218ec7cc7d05dbd3aa2aa5295d6cf083f1bda5bb4", kill_on_drop: false }`
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling cc v1.2.31
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking phf_shared v0.11.3
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking rustls-native-certs v0.8.1
[INFO] [stderr]     Checking webpki-roots v1.0.2
[INFO] [stderr]     Checking iri-string v0.7.8
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking dtoa v1.0.10
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling darling_core v0.21.1
[INFO] [stderr]    Compiling html5ever v0.27.0
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]    Compiling pulldown-cmark v0.12.2
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]    Compiling selectors v0.25.0
[INFO] [stderr]     Checking bstr v1.12.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/bac5816c5f3d02cebd0599070af62d1782530294/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=dbb436683f28d528 -C extra-filename=-4beb7337d2b31124 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d8665169c487d19b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-60c6fa93c90874f2.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3925cc8f83e9ac1.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "046563d970a5f4bc7b2d6e4218ec7cc7d05dbd3aa2aa5295d6cf083f1bda5bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046563d970a5f4bc7b2d6e4218ec7cc7d05dbd3aa2aa5295d6cf083f1bda5bb4", kill_on_drop: false }`
[INFO] [stdout] 046563d970a5f4bc7b2d6e4218ec7cc7d05dbd3aa2aa5295d6cf083f1bda5bb4
