[INFO] fetching crate mandrel-mcp-th 0.4.6...
[INFO] testing mandrel-mcp-th-0.4.6 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate mandrel-mcp-th 0.4.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mandrel-mcp-th 0.4.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mandrel-mcp-th 0.4.6
[INFO] tweaked toml for crates.io crate mandrel-mcp-th 0.4.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mandrel-mcp-th 0.4.6 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mandrel-mcp-th 0.4.6 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c66d9242956b531f0c3431bb36da082e86b0129bc6fd15bdea3e887f889cf05
[INFO] running `Command { std: "docker" "start" "-a" "7c66d9242956b531f0c3431bb36da082e86b0129bc6fd15bdea3e887f889cf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c66d9242956b531f0c3431bb36da082e86b0129bc6fd15bdea3e887f889cf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c66d9242956b531f0c3431bb36da082e86b0129bc6fd15bdea3e887f889cf05", kill_on_drop: false }`
[INFO] [stdout] 7c66d9242956b531f0c3431bb36da082e86b0129bc6fd15bdea3e887f889cf05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42df5b7c86a65b2f81bcec778f93603bba5d0efad6f25c727aa909f65fa0c878
[INFO] running `Command { std: "docker" "start" "-a" "42df5b7c86a65b2f81bcec778f93603bba5d0efad6f25c727aa909f65fa0c878", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling serde_json v1.0.141
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling env_home v0.1.0
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling pyo3-build-config v0.24.2
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling lua-src v547.0.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling newtype-uuid v1.2.4
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling rquickjs-sys v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling which v7.0.3
[INFO] [stderr]    Compiling pyo3-macros-backend v0.24.2
[INFO] [stderr]    Compiling luajit-src v210.5.12+a4f56a4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pyo3-ffi v0.24.2
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling mlua-sys v0.6.8
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.21.0
[INFO] [stderr]    Compiling phf_generator v0.11.3
[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/c2e32f1c9652b13ed99608599c1e855462f421f3/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.104/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=bcebb22733c1a4b9 -C extra-filename=-f9cb331781faf872 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-09040b10b620fa15.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bff949ffe258c67d.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" "42df5b7c86a65b2f81bcec778f93603bba5d0efad6f25c727aa909f65fa0c878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42df5b7c86a65b2f81bcec778f93603bba5d0efad6f25c727aa909f65fa0c878", kill_on_drop: false }`
[INFO] [stdout] 42df5b7c86a65b2f81bcec778f93603bba5d0efad6f25c727aa909f65fa0c878