[INFO] fetching crate poly-mcp 0.3.0...
[INFO] checking poly-mcp-0.3.0 against try#c86ec274072509d26d0ee52682a0c94ed012ed89 for pr-153027
[INFO] extracting crate poly-mcp 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate poly-mcp 0.3.0
[INFO] finished tweaking crates.io crate poly-mcp 0.3.0
[INFO] tweaked toml for crates.io crate poly-mcp 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate poly-mcp 0.3.0 on toolchain c86ec274072509d26d0ee52682a0c94ed012ed89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate poly-mcp 0.3.0 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" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f5c6e4723325bf17458dd112b1609a66590367db6c5c47765e1420f9aed1667
[INFO] running `Command { std: "docker" "start" "-a" "8f5c6e4723325bf17458dd112b1609a66590367db6c5c47765e1420f9aed1667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f5c6e4723325bf17458dd112b1609a66590367db6c5c47765e1420f9aed1667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5c6e4723325bf17458dd112b1609a66590367db6c5c47765e1420f9aed1667", kill_on_drop: false }`
[INFO] [stdout] 8f5c6e4723325bf17458dd112b1609a66590367db6c5c47765e1420f9aed1667
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0875bff58b671eb7ab8f7b23885bdacc69946a169191380b48c6474cc7f5b0c0
[INFO] running `Command { std: "docker" "start" "-a" "0875bff58b671eb7ab8f7b23885bdacc69946a169191380b48c6474cc7f5b0c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling xml-rs v0.8.28
[INFO] [stderr]     Checking hashbrown v0.16.1
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking http v1.4.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]    Compiling toml_edit v0.23.10+spec-1.0.0
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]    Compiling zmij v1.0.14
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking winnow v0.7.14
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]    Compiling endi v1.1.1
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling markup5ever v0.12.1
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking inout v0.1.4
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]    Compiling cc v1.2.53
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking base64ct v1.8.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking ryu v1.0.22
[INFO] [stderr]    Compiling portable-atomic v1.13.0
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking async-executor v1.13.3
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking uuid v1.19.0
[INFO] [stderr]     Checking async-broadcast v0.7.2
[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/c86ec274072509d26d0ee52682a0c94ed012ed89/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.114/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="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=27de822939957c10 -C extra-filename=-ae89fef727499e44 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9fa1fca5a5172758.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e041a0e5d7592a9c.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9533002ac35f5809.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" "0875bff58b671eb7ab8f7b23885bdacc69946a169191380b48c6474cc7f5b0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0875bff58b671eb7ab8f7b23885bdacc69946a169191380b48c6474cc7f5b0c0", kill_on_drop: false }`
[INFO] [stdout] 0875bff58b671eb7ab8f7b23885bdacc69946a169191380b48c6474cc7f5b0c0
