[INFO] fetching crate serial-mcp 0.7.4...
[INFO] checking serial-mcp-0.7.4 against try#24e1a22664233bce1f9b5dc6eee7c1f74327e28c for pr-159343
[INFO] extracting crate serial-mcp 0.7.4 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate serial-mcp 0.7.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serial-mcp 0.7.4
[INFO] tweaked toml for crates.io crate serial-mcp 0.7.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serial-mcp 0.7.4 on toolchain 24e1a22664233bce1f9b5dc6eee7c1f74327e28c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serial-mcp 0.7.4 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" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792
[INFO] running `Command { std: "docker" "start" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792", 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" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792", 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" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking mio v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]    Compiling nix v0.31.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking ring v0.17.14
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking uuid v1.23.3
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]    Compiling rmcp v1.7.0
[INFO] [stderr]     Checking webpki-roots v1.0.8
[INFO] [stderr]     Checking serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling serial-mcp v0.7.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking borrow-or-share v0.2.4
[INFO] [stderr]    Compiling pastey v0.2.3
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.13
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking outref v0.5.2
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking vsimd v0.8.0
[INFO] [stderr]     Checking rusty-fork v0.3.1
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking bytecount v0.6.9
[INFO] [stderr]     Checking num-cmp v0.1.0
[INFO] [stderr]    Compiling mutants v0.0.4
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking uuid-simd v0.8.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking proptest v1.11.0
[INFO] [stderr]     Checking rustls-webpki v0.103.13
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr] error: could not compile `regex-automata` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/24e1a22664233bce1f9b5dc6eee7c1f74327e28c/bin/rustc --crate-name regex_automata --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.14/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 --cfg 'feature="alloc"' --cfg 'feature="dfa"' --cfg 'feature="dfa-build"' --cfg 'feature="dfa-onepass"' --cfg 'feature="dfa-search"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --cfg 'feature="perf"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="perf-literal-multisubstring"' --cfg 'feature="perf-literal-substring"' --cfg 'feature="std"' --cfg 'feature="syntax"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --cfg 'feature="unicode-word-boundary"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "dfa", "dfa-build", "dfa-onepass", "dfa-search", "hybrid", "internal-instrument", "internal-instrument-pikevm", "logging", "meta", "nfa", "nfa-backtrack", "nfa-pikevm", "nfa-thompson", "perf", "perf-inline", "perf-literal", "perf-literal-multisubstring", "perf-literal-substring", "std", "syntax", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unicode-word-boundary"))' -C metadata=7738452a4b1189af -C extra-filename=-0d39c18f5d8cb73d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-195d378ba3961ee0.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-3ca07533bbd8f674.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-aa2c0ef21912879c.rmeta --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 `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/24e1a22664233bce1f9b5dc6eee7c1f74327e28c/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.118/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=4ff726f669660d2c -C extra-filename=-9416ed7da02c6d0e --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] running `Command { std: "docker" "inspect" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792", kill_on_drop: false }`
[INFO] [stdout] c0da60201b1ac5cba92326cf11919599ea866f7e46319372673d2c7d628df792
