[INFO] cloning repository https://github.com/nicktretyakov/federated_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicktretyakov/federated_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicktretyakov%2Ffederated_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicktretyakov%2Ffederated_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c39e3a52bd9c45e3c3f4ea611bdb920a4fcfbd1f
[INFO] checking nicktretyakov/federated_learning against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicktretyakov%2Ffederated_learning" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nicktretyakov/federated_learning
[INFO] finished tweaking git repo https://github.com/nicktretyakov/federated_learning
[INFO] tweaked toml for git repo https://github.com/nicktretyakov/federated_learning written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nicktretyakov/federated_learning on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nicktretyakov/federated_learning 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16bb4624e8e8f43c5f6010eeaa3804ef927b62cec057245c7e81934e15dde67d
[INFO] running `Command { std: "docker" "start" "-a" "16bb4624e8e8f43c5f6010eeaa3804ef927b62cec057245c7e81934e15dde67d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16bb4624e8e8f43c5f6010eeaa3804ef927b62cec057245c7e81934e15dde67d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16bb4624e8e8f43c5f6010eeaa3804ef927b62cec057245c7e81934e15dde67d", kill_on_drop: false }`
[INFO] [stdout] 16bb4624e8e8f43c5f6010eeaa3804ef927b62cec057245c7e81934e15dde67d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08b99e24d9ade9eadd0598aa1492371d7f4ef83173da9c14e820c78c977f6bc7
[INFO] running `Command { std: "docker" "start" "-a" "08b99e24d9ade9eadd0598aa1492371d7f4ef83173da9c14e820c78c977f6bc7", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking actix-service v2.0.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking brotli-decompressor v4.0.2
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]     Checking bytestring v1.4.0
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]     Checking local-channel v0.1.5
[INFO] [stderr]     Checking impl-more v0.1.9
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr] error: could not compile `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/bin/rustc --crate-name regex_syntax --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.8.5/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="default"' --cfg 'feature="std"' --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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("arbitrary", "default", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=bdd04e0f4dc7c7dd -C extra-filename=-a51f3b0cccc0511b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "08b99e24d9ade9eadd0598aa1492371d7f4ef83173da9c14e820c78c977f6bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08b99e24d9ade9eadd0598aa1492371d7f4ef83173da9c14e820c78c977f6bc7", kill_on_drop: false }`
[INFO] [stdout] 08b99e24d9ade9eadd0598aa1492371d7f4ef83173da9c14e820c78c977f6bc7