[INFO] fetching crate mechtron-host 0.3.14...
[INFO] testing mechtron-host-0.3.14 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate mechtron-host 0.3.14 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mechtron-host 0.3.14
[INFO] finished tweaking crates.io crate mechtron-host 0.3.14
[INFO] tweaked toml for crates.io crate mechtron-host 0.3.14 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mechtron-host 0.3.14 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 277 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v3.0.0)
[INFO] [stderr]       Adding oneshot v0.1.13 (available: v0.2.1)
[INFO] [stderr]       Adding wasmer v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-compiler-singlepass v2.3.0 (available: v7.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-iterator-derive v0.7.0
[INFO] [stderr]   Downloaded serde_bytes v0.11.19
[INFO] [stderr]   Downloaded loupe v0.1.3
[INFO] [stderr]   Downloaded enumset v1.1.10
[INFO] [stderr]   Downloaded cosmic-macros-primitive v0.3.14
[INFO] [stderr]   Downloaded wasmer-compiler v2.3.0
[INFO] [stderr]   Downloaded wasmer-types v2.3.0
[INFO] [stderr]   Downloaded matches v0.1.10
[INFO] [stderr]   Downloaded cranelift-frontend v0.82.3
[INFO] [stderr]   Downloaded darling v0.21.3
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.15
[INFO] [stderr]   Downloaded ariadne v0.1.5
[INFO] [stderr]   Downloaded wat v1.245.1
[INFO] [stderr]   Downloaded yansi v0.5.1
[INFO] [stderr]   Downloaded convert_case v0.5.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.82.3
[INFO] [stderr]   Downloaded wasmer-compiler-cranelift v2.3.0
[INFO] [stderr]   Downloaded wasm-encoder v0.245.1
[INFO] [stderr]   Downloaded regalloc v0.0.34
[INFO] [stderr]   Downloaded cosmic-space v0.3.14
[INFO] [stderr]   Downloaded wasmer v2.3.0
[INFO] [stderr]   Downloaded object v0.28.4
[INFO] [stderr]   Downloaded rayon v1.11.0
[INFO] [stderr]   Downloaded wast v245.0.1
[INFO] [stderr]   Downloaded darling_core v0.21.3
[INFO] [stderr]   Downloaded dynasm v1.2.3
[INFO] [stderr]   Downloaded idna v0.2.3
[INFO] [stderr]   Downloaded unicode-width v0.2.2
[INFO] [stderr]   Downloaded wasmparser v0.245.1
[INFO] [stderr]   Downloaded rayon-core v1.13.0
[INFO] [stderr]   Downloaded corosensei v0.1.4
[INFO] [stderr]   Downloaded wasmer-vm v2.3.0
[INFO] [stderr]   Downloaded wasmer-compiler-singlepass v2.3.0
[INFO] [stderr]   Downloaded dashmap v5.5.3
[INFO] [stderr]   Downloaded nom_locate v4.2.0
[INFO] [stderr]   Downloaded tempfile v3.27.0
[INFO] [stderr]   Downloaded rustix v1.1.4
[INFO] [stderr]   Downloaded wasmer-engine v2.3.0
[INFO] [stderr]   Downloaded dynasmrt v1.2.3
[INFO] [stderr]   Downloaded nom-supreme v0.6.0
[INFO] [stderr]   Downloaded strum_macros v0.24.3
[INFO] [stderr]   Downloaded oneshot v0.1.13
[INFO] [stderr]   Downloaded cranelift-bforest v0.82.3
[INFO] [stderr]   Downloaded wasmer-engine-dylib v2.3.0
[INFO] [stderr]   Downloaded enumset_derive v0.14.0
[INFO] [stderr]   Downloaded darling_macro v0.21.3
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.33.0
[INFO] [stderr]   Downloaded cosmic-nom v0.3.14
[INFO] [stderr]   Downloaded indent_write v2.2.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.33.0
[INFO] [stderr]   Downloaded strum v0.24.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.82.3
[INFO] [stderr]   Downloaded windows_i686_msvc v0.33.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.33.0
[INFO] [stderr]   Downloaded threadpool v1.8.1
[INFO] [stderr]   Downloaded libloading v0.7.4
[INFO] [stderr]   Downloaded windows_i686_gnu v0.33.0
[INFO] [stderr]   Downloaded home v0.5.12
[INFO] [stderr]   Downloaded region v3.0.2
[INFO] [stderr]   Downloaded wasmer-artifact v2.3.0
[INFO] [stderr]   Downloaded brownstone v1.1.0
[INFO] [stderr]   Downloaded joinery v2.1.0
[INFO] [stderr]   Downloaded validator v0.15.0
[INFO] [stderr]   Downloaded num_cpus v1.17.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.82.3
[INFO] [stderr]   Downloaded wasmer-derive v2.3.0
[INFO] [stderr]   Downloaded wasmer-object v2.3.0
[INFO] [stderr]   Downloaded which v4.4.2
[INFO] [stderr]   Downloaded wasmer-engine-universal-artifact v2.3.0
[INFO] [stderr]   Downloaded wasmer-engine-universal v2.3.0
[INFO] [stderr]   Downloaded mach2 v0.4.3
[INFO] [stderr]   Downloaded memmap2 v0.5.10
[INFO] [stderr]   Downloaded enum-iterator v0.7.0
[INFO] [stderr]   Downloaded loupe-derive v0.1.3
[INFO] [stderr]   Downloaded linux-raw-sys v0.12.1
[INFO] [stderr]   Downloaded windows-sys v0.33.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 248d7e7f0dcd413fc387ce285b6116e7b3cd469d27617dbc727ab79ac658beee
[INFO] running `Command { std: "docker" "start" "-a" "248d7e7f0dcd413fc387ce285b6116e7b3cd469d27617dbc727ab79ac658beee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "248d7e7f0dcd413fc387ce285b6116e7b3cd469d27617dbc727ab79ac658beee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "248d7e7f0dcd413fc387ce285b6116e7b3cd469d27617dbc727ab79ac658beee", kill_on_drop: false }`
[INFO] [stdout] 248d7e7f0dcd413fc387ce285b6116e7b3cd469d27617dbc727ab79ac658beee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 889efe596a0ae37d7084a2fecdfe540db5f7d9cead3a28d2686c68c886605ecf
[INFO] running `Command { std: "docker" "start" "-a" "889efe596a0ae37d7084a2fecdfe540db5f7d9cead3a28d2686c68c886605ecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling enum-iterator-derive v0.7.0
[INFO] [stderr]    Compiling rkyv_derive v0.7.46
[INFO] [stderr]    Compiling loupe-derive v0.1.3
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.82.3
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.82.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling enum-iterator v0.7.0
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling region v3.0.2
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling cranelift-entity v0.82.3
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling tinyvec v1.11.0
[INFO] [stderr]    Compiling cranelift-bforest v0.82.3
[INFO] [stderr]    Compiling regalloc v0.0.34
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling leb128fmt v0.1.0
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling wasm-encoder v0.245.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling brownstone v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v2.3.0
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling indent_write v2.2.0
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling joinery v2.1.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling nom_locate v4.2.0
[INFO] [stderr]    Compiling nom-supreme v0.6.0
[INFO] [stderr]    Compiling wast v245.0.1
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling cranelift-codegen v0.82.3
[INFO] [stderr]    Compiling dynasm v1.2.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling ariadne v0.1.5
[INFO] [stderr]    Compiling wasmer-derive v2.3.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling cosmic-macros-primitive v0.3.14
[INFO] [stderr]    Compiling semver v1.0.27
[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/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.117/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=38efe9c620ca8d0f -C extra-filename=-ae6c806947fc9697 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d4cb564e807a9cd7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-aa2c5b8519914b46.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-8c98a1a0e58216a9.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" "889efe596a0ae37d7084a2fecdfe540db5f7d9cead3a28d2686c68c886605ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889efe596a0ae37d7084a2fecdfe540db5f7d9cead3a28d2686c68c886605ecf", kill_on_drop: false }`
[INFO] [stdout] 889efe596a0ae37d7084a2fecdfe540db5f7d9cead3a28d2686c68c886605ecf
