[INFO] fetching crate rmcp-agent 0.1.6...
[INFO] checking rmcp-agent-0.1.6 against try#0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef for pr-147859
[INFO] extracting crate rmcp-agent 0.1.6 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmcp-agent 0.1.6 on toolchain 0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "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" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59d8ed4b7ff962c869401226320861eb83a4f530860f2df4595ae7aec3eeed81
[INFO] running `Command { std: "docker" "start" "-a" "59d8ed4b7ff962c869401226320861eb83a4f530860f2df4595ae7aec3eeed81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59d8ed4b7ff962c869401226320861eb83a4f530860f2df4595ae7aec3eeed81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d8ed4b7ff962c869401226320861eb83a4f530860f2df4595ae7aec3eeed81", kill_on_drop: false }`
[INFO] [stdout] 59d8ed4b7ff962c869401226320861eb83a4f530860f2df4595ae7aec3eeed81
[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=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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceb9df994c2a1ce72acf231076088bd59e8c128fca48f31c1b8c37d52f5909e8
[INFO] running `Command { std: "docker" "start" "-a" "ceb9df994c2a1ce72acf231076088bd59e8c128fca48f31c1b8c37d52f5909e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]    Compiling cc v1.2.31
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[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 siphasher v0.3.11
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking phf_shared v0.11.3
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[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 rustversion v1.0.21
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking webpki-roots v1.0.2
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking rustls-native-certs v0.8.1
[INFO] [stderr]     Checking iri-string v0.7.8
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking indexmap v2.10.0
[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 bit-vec v0.6.3
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling pulldown-cmark v0.12.2
[INFO] [stderr]     Checking servo_arc v0.3.0
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking colored v3.0.0
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking matchit v0.8.4
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking ego-tree v0.6.3
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]     Checking uuid v1.17.0
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking clap_builder v4.5.43
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking eventsource-stream v0.2.3
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking bstr v1.12.0
[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 selectors v0.25.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling markup5ever v0.12.1
[INFO] [stderr]     Checking fancy-regex v0.12.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling darling_core v0.21.1
[INFO] [stderr]    Compiling derive_utils v0.15.0
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]     Checking tiktoken-rs v0.5.9
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking rustls-webpki v0.103.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling html5ever v0.27.0
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]     Checking cssparser v0.31.2
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]     Checking async-convert v1.0.0
[INFO] [stderr]     Checking axum-core v0.5.2
[INFO] [stderr]    Compiling schemars_derive v1.0.4
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking ref-cast v1.0.24
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking zerotrie v0.2.2
[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/0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef/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] [stderr] error: could not compile `darling_core` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef/bin/rustc --crate-name darling_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/darling_core-0.21.1/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="strsim"' --cfg 'feature="suggestions"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("diagnostics", "serde", "strsim", "suggestions"))' -C metadata=ef99151ade8895c5 -C extra-filename=-bc7f7aeef55ad9d5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-bd60753855300b18.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-ecc112105bc5215b.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d8665169c487d19b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-60c6fa93c90874f2.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-9754e702f19a9357.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-7ae43d5fbe1eb75d.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "ceb9df994c2a1ce72acf231076088bd59e8c128fca48f31c1b8c37d52f5909e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb9df994c2a1ce72acf231076088bd59e8c128fca48f31c1b8c37d52f5909e8", kill_on_drop: false }`
[INFO] [stdout] ceb9df994c2a1ce72acf231076088bd59e8c128fca48f31c1b8c37d52f5909e8