[INFO] fetching crate mutant-lib 0.6.2...
[INFO] testing mutant-lib-0.6.2 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate mutant-lib 0.6.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mutant-lib 0.6.2
[INFO] finished tweaking crates.io crate mutant-lib 0.6.2
[INFO] tweaked toml for crates.io crate mutant-lib 0.6.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutant-lib 0.6.2 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mutant-lib 0.6.2 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b399774b1d986eb46dbc1ff6e5cfebabe978edeb2763339b54e77e5ec2b273e1
[INFO] running `Command { std: "docker" "start" "-a" "b399774b1d986eb46dbc1ff6e5cfebabe978edeb2763339b54e77e5ec2b273e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b399774b1d986eb46dbc1ff6e5cfebabe978edeb2763339b54e77e5ec2b273e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b399774b1d986eb46dbc1ff6e5cfebabe978edeb2763339b54e77e5ec2b273e1", kill_on_drop: false }`
[INFO] [stdout] b399774b1d986eb46dbc1ff6e5cfebabe978edeb2763339b54e77e5ec2b273e1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 426be7bc9f75fd462d53234f2f875887986e6816ee92c0471538b57571871eef
[INFO] running `Command { std: "docker" "start" "-a" "426be7bc9f75fd462d53234f2f875887986e6816ee92c0471538b57571871eef", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling litemap v0.7.5
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling ruint-macro v1.2.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling write16 v1.0.0
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling utf16_iter v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling winnow v0.7.6
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling rustls v0.23.26
[INFO] [stderr]    Compiling unsigned-varint v0.7.2
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling futures-utils-wasm v0.1.0
[INFO] [stderr]    Compiling webpki-roots v0.26.8
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling oid-registry v0.7.1
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling quinn-udp v0.5.11
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling moka v0.12.10
[INFO] [stderr]    Compiling blst v0.3.14
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling quinn v0.11.7
[INFO] [stderr]    Compiling pem v3.0.5
[INFO] [stderr]    Compiling vergen v8.3.2
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling snow v0.9.6
[INFO] [stderr]    Compiling hostname v0.4.1
[INFO] [stderr]    Compiling xml-rs v0.8.26
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling schnellru v0.2.4
[INFO] [stderr]    Compiling tagptr v0.2.0
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling resolv-conf v0.7.1
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling xmltree v0.10.3
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling uint v0.10.0
[INFO] [stderr]    Compiling byte-slice-cast v1.2.3
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling macro-string v0.1.4
[INFO] [stderr]    Compiling syn-solidity v0.8.25
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling pairing v0.22.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling dtoa v1.0.10
[INFO] [stderr]    Compiling bitcoin-internals v0.2.0
[INFO] [stderr]    Compiling clap_builder v4.5.37
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling brotli-decompressor v2.3.5
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling hex-conservative v0.1.2
[INFO] [stderr]    Compiling ant-build-info v0.1.27
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling bitcoin_hashes v0.13.0
[INFO] [stderr]    Compiling pairing v0.23.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling exponential-backoff v2.1.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[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/2440211fe03bc45c89b6dc1a3df18382ce91e32b/bin/rustc --crate-name regex_automata --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.9/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="alloc"' --cfg 'feature="dfa-onepass"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --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=b8711d409ea013ed -C extra-filename=-981d5266232f2ed7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-bc4c03c767dc9bd7.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-385abaa02608ee6d.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-a51f3b0cccc0511b.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/2440211fe03bc45c89b6dc1a3df18382ce91e32b/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.100/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=e8e58f82916a75e2 -C extra-filename=-8fbe4e885794bb83 --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] running `Command { std: "docker" "inspect" "426be7bc9f75fd462d53234f2f875887986e6816ee92c0471538b57571871eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "426be7bc9f75fd462d53234f2f875887986e6816ee92c0471538b57571871eef", kill_on_drop: false }`
[INFO] [stdout] 426be7bc9f75fd462d53234f2f875887986e6816ee92c0471538b57571871eef