[INFO] cloning repository https://github.com/jrskg/rust-todo-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrskg/rust-todo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrskg%2Frust-todo-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrskg%2Frust-todo-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fb70a4f7b2d39e7fc4923274fcdc8d43aff3c47
[INFO] testing jrskg/rust-todo-server against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrskg%2Frust-todo-server" "/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/jrskg/rust-todo-server
[INFO] finished tweaking git repo https://github.com/jrskg/rust-todo-server
[INFO] tweaked toml for git repo https://github.com/jrskg/rust-todo-server written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jrskg/rust-todo-server on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jrskg/rust-todo-server 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" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13a6fcb95c19d4a2caac4d7f92da5549b0bdfa36306936f9cc4734c68cc7efb8
[INFO] running `Command { std: "docker" "start" "-a" "13a6fcb95c19d4a2caac4d7f92da5549b0bdfa36306936f9cc4734c68cc7efb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13a6fcb95c19d4a2caac4d7f92da5549b0bdfa36306936f9cc4734c68cc7efb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a6fcb95c19d4a2caac4d7f92da5549b0bdfa36306936f9cc4734c68cc7efb8", kill_on_drop: false }`
[INFO] [stdout] 13a6fcb95c19d4a2caac4d7f92da5549b0bdfa36306936f9cc4734c68cc7efb8
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fa6e211e0411ec74b3ff75d2e8d4dfb0c8c39851516a7b6b349a4f45cc67c04
[INFO] running `Command { std: "docker" "start" "-a" "6fa6e211e0411ec74b3ff75d2e8d4dfb0c8c39851516a7b6b349a4f45cc67c04", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling litemap v0.7.4
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling icu_properties_data v1.5.0
[INFO] [stderr]    Compiling utf16_iter v1.0.5
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.0
[INFO] [stderr]    Compiling write16 v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling time-macros v0.2.19
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling tinyvec v1.8.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling semver v1.0.25
[INFO] [stderr]    Compiling cpufeatures v0.2.16
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling zstd-safe v7.2.1
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling cc v1.2.10
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling bytestring v1.4.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.3
[INFO] [stderr]    Compiling actix-service v2.0.2
[INFO] [stderr]    Compiling time v0.3.37
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling brotli-decompressor v4.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling rustc_version_runtime v0.3.0
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling data-encoding v2.7.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling brotli v6.0.0
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[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/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=049068c603e35e4c -C extra-filename=-fb94ffa52968f5d6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5bcccf0dad1cb673.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-27dc9ea7c1e6da2e.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-479310822a796184.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6fa6e211e0411ec74b3ff75d2e8d4dfb0c8c39851516a7b6b349a4f45cc67c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fa6e211e0411ec74b3ff75d2e8d4dfb0c8c39851516a7b6b349a4f45cc67c04", kill_on_drop: false }`
[INFO] [stdout] 6fa6e211e0411ec74b3ff75d2e8d4dfb0c8c39851516a7b6b349a4f45cc67c04
