[INFO] fetching crate rmcp-mux 0.3.1...
[INFO] checking rmcp-mux-0.3.1 against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] extracting crate rmcp-mux 0.3.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rmcp-mux 0.3.1
[INFO] finished tweaking crates.io crate rmcp-mux 0.3.1
[INFO] tweaked toml for crates.io crate rmcp-mux 0.3.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmcp-mux 0.3.1 on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rmcp-mux 0.3.1 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddee4696dcb5bb899fb29767820bbbc6d1dd17a3f8eee2a37e8d09f0fdf1bef4
[INFO] running `Command { std: "docker" "start" "-a" "ddee4696dcb5bb899fb29767820bbbc6d1dd17a3f8eee2a37e8d09f0fdf1bef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddee4696dcb5bb899fb29767820bbbc6d1dd17a3f8eee2a37e8d09f0fdf1bef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddee4696dcb5bb899fb29767820bbbc6d1dd17a3f8eee2a37e8d09f0fdf1bef4", kill_on_drop: false }`
[INFO] [stdout] ddee4696dcb5bb899fb29767820bbbc6d1dd17a3f8eee2a37e8d09f0fdf1bef4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6dead6bc4b5537080a95bb70350dcf05c3427a11c6de45e489aac93e247c229
[INFO] running `Command { std: "docker" "start" "-a" "a6dead6bc4b5537080a95bb70350dcf05c3427a11c6de45e489aac93e247c229", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling version-compare v0.2.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling gio v0.18.4
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]    Compiling field-offset v0.3.6
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling gtk v0.18.2
[INFO] [stderr]    Compiling libxdo-sys v0.11.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling instability v0.3.10
[INFO] [stderr]     Checking rustix v0.38.44
[INFO] [stderr]    Compiling cfg-expr v0.15.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking tracing v0.1.43
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking signal-hook-mio v0.2.5
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking ref-cast v1.0.25
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking keyboard-types v0.7.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking pxfm v0.1.26
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]    Compiling toml_edit v0.20.2
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling schemars_derive v1.1.0
[INFO] [stderr]     Checking libxdo v0.6.0
[INFO] [stderr]     Checking lru v0.12.5
[INFO] [stderr]     Checking png v0.18.0
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling pastey v0.2.0
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking tracing-subscriber v0.3.22
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr] error: could not compile `tokio` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/bin/rustc --crate-name tokio --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.48.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --warn=unexpected_cfgs --check-cfg 'cfg(fuzzing)' --check-cfg 'cfg(loom)' --check-cfg 'cfg(mio_unsupported_force_poll_poll)' --check-cfg 'cfg(tokio_allow_from_blocking_fd)' --check-cfg 'cfg(tokio_internal_mt_counters)' --check-cfg 'cfg(tokio_no_parking_lot)' --check-cfg 'cfg(tokio_no_tuning_tests)' --check-cfg 'cfg(tokio_unstable)' --check-cfg 'cfg(target_os, values("cygwin"))' --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="full"' --cfg 'feature="io-std"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="macros"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="parking_lot"' --cfg 'feature="process"' --cfg 'feature="rt"' --cfg 'feature="rt-multi-thread"' --cfg 'feature="signal"' --cfg 'feature="signal-hook-registry"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' --cfg 'feature="tokio-macros"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bytes", "default", "fs", "full", "io-std", "io-uring", "io-util", "libc", "macros", "mio", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "signal-hook-registry", "socket2", "sync", "taskdump", "test-util", "time", "tokio-macros", "tracing", "windows-sys"))' -C metadata=e139ac051cd4c6e4 -C extra-filename=-8d71a48e414dffd3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-1733fcdb13354ed1.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-61c8ff19ef2481c9.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-09abd33f09676104.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-2bda80ad6c0927e0.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-dccf8aabedbf6d41.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-83188e9cdf3717c5.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-0287a62d3f4f7201.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-80e362c5888f7c75.so --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/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/bin/rustc --crate-name darling_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/darling_core-0.21.3/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=a0480835025a01dc -C extra-filename=-b49cee89a777f395 --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_macro2-43e32a25692bf44a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-01cdf4ac6a2aaf5b.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-9754e702f19a9357.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-70df68b2b4ac6798.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "a6dead6bc4b5537080a95bb70350dcf05c3427a11c6de45e489aac93e247c229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6dead6bc4b5537080a95bb70350dcf05c3427a11c6de45e489aac93e247c229", kill_on_drop: false }`
[INFO] [stdout] a6dead6bc4b5537080a95bb70350dcf05c3427a11c6de45e489aac93e247c229