[INFO] fetching crate serial-mcp 0.5.1...
[INFO] checking serial-mcp-0.5.1 against try#fceb2de603f0807f9049222f3f612ed51ed8f9dc for pr-157576
[INFO] extracting crate serial-mcp 0.5.1 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate serial-mcp 0.5.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serial-mcp 0.5.1
[INFO] tweaked toml for crates.io crate serial-mcp 0.5.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serial-mcp 0.5.1 on toolchain fceb2de603f0807f9049222f3f612ed51ed8f9dc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serial-mcp 0.5.1 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" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133
[INFO] running `Command { std: "docker" "start" "dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133" "/opt/rustwide/cargo-home/bin/cargo" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133" "/opt/rustwide/cargo-home/bin/cargo" "+fceb2de603f0807f9049222f3f612ed51ed8f9dc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking memchr v2.8.1
[INFO] [stderr]     Checking log v0.4.30
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking futures-task v0.3.32
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking bitflags v2.11.1
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking http v1.4.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]     Checking ipnet v2.12.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling zerocopy v0.8.49
[INFO] [stderr]     Checking rustls-pki-types v1.14.1
[INFO] [stderr]    Compiling nix v0.31.3
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking dyn-clone v1.0.20
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]    Compiling rmcp v1.7.0
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking webpki-roots v1.0.7
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]    Compiling serial-mcp v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking borrow-or-share v0.2.4
[INFO] [stderr]     Checking nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling pastey v0.2.3
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking matchit v0.8.4
[INFO] [stderr]     Checking fastrand v2.4.1
[INFO] [stderr]     Checking vsimd v0.8.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking outref v0.5.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bytecount v0.6.9
[INFO] [stderr]     Checking num-cmp v0.1.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling mutants v0.0.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking rusty-fork v0.3.1
[INFO] [stderr]     Checking uuid-simd v0.8.0
[INFO] [stderr]     Checking serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.12
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking fraction v0.15.4
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[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/fceb2de603f0807f9049222f3f612ed51ed8f9dc/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" "dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133", kill_on_drop: false }`
[INFO] [stdout] dd84550b9f60dfb9079f1f13fcbf837fb0666f92e822f532d327f7b604b61133