[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#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicktretyakov%2Ffederated_learning" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nicktretyakov/federated_learning on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03c343398203a79959946d3b645de460131bf85c2601951dda6e1aef4ae5d62b
[INFO] running `Command { std: "docker" "start" "-a" "03c343398203a79959946d3b645de460131bf85c2601951dda6e1aef4ae5d62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03c343398203a79959946d3b645de460131bf85c2601951dda6e1aef4ae5d62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c343398203a79959946d3b645de460131bf85c2601951dda6e1aef4ae5d62b", kill_on_drop: false }`
[INFO] [stdout] 03c343398203a79959946d3b645de460131bf85c2601951dda6e1aef4ae5d62b
[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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d035ef83ee23f3e1cbcf6dd9ce9e0b9515bbd06a8ed176381309e176cdd04da6
[INFO] running `Command { std: "docker" "start" "-a" "d035ef83ee23f3e1cbcf6dd9ce9e0b9515bbd06a8ed176381309e176cdd04da6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]     Checking actix-service v2.0.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking brotli-decompressor v4.0.2
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]     Checking bytestring v1.4.0
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[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/dd2d87b6cc31907ae305875eb6be399783dc0256/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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d035ef83ee23f3e1cbcf6dd9ce9e0b9515bbd06a8ed176381309e176cdd04da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d035ef83ee23f3e1cbcf6dd9ce9e0b9515bbd06a8ed176381309e176cdd04da6", kill_on_drop: false }`
[INFO] [stdout] d035ef83ee23f3e1cbcf6dd9ce9e0b9515bbd06a8ed176381309e176cdd04da6