[INFO] cloning repository https://github.com/austinabell/c-r0
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/austinabell/c-r0" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinabell%2Fc-r0", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinabell%2Fc-r0'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ac999502c94f84831a5bd86def47132e625c943
[INFO] testing austinabell/c-r0 against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinabell%2Fc-r0" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/austinabell/c-r0
[INFO] finished tweaking git repo https://github.com/austinabell/c-r0
[INFO] tweaked toml for git repo https://github.com/austinabell/c-r0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/austinabell/c-r0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/austinabell/c-r0 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb71388cd173191505d846612c360edbca38fa89e37be06f59c100bc745a432d
[INFO] running `Command { std: "docker" "start" "-a" "cb71388cd173191505d846612c360edbca38fa89e37be06f59c100bc745a432d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb71388cd173191505d846612c360edbca38fa89e37be06f59c100bc745a432d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb71388cd173191505d846612c360edbca38fa89e37be06f59c100bc745a432d", kill_on_drop: false }`
[INFO] [stdout] cb71388cd173191505d846612c360edbca38fa89e37be06f59c100bc745a432d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8adf2528fca1512955b24e3b0692a06276666795b461a2c81bbcbc24c4f61d2e
[INFO] running `Command { std: "docker" "start" "-a" "8adf2528fca1512955b24e3b0692a06276666795b461a2c81bbcbc24c4f61d2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling serde v1.0.201
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling zerocopy v0.7.34
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling risc0-zkp v1.0.0-rc.5
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling untrusted v0.9.0
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling risc0-zkvm-platform v1.0.0-rc.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling num-bigint v0.4.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling ark-std v0.4.0
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling elf v0.7.4
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling risc0-circuit-recursion v1.0.0-rc.5
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling rustls-pemfile v2.1.2
[INFO] [stderr]    Compiling webpki-roots v0.26.1
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling risc0-circuit-rv32im v1.0.0-rc.5
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling ipnet v2.9.0
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling downcast-rs v1.2.1
[INFO] [stderr]    Compiling rrs-lib v0.1.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[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-2026-03-05-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"' --cfg 'feature="visit"' --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=fe9d59d6d1335676 -C extra-filename=-5ace633c80368ffe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-33ae64caf633735d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9236e716d27fb4df.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-772f13ecc3fc189a.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" "8adf2528fca1512955b24e3b0692a06276666795b461a2c81bbcbc24c4f61d2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8adf2528fca1512955b24e3b0692a06276666795b461a2c81bbcbc24c4f61d2e", kill_on_drop: false }`
[INFO] [stdout] 8adf2528fca1512955b24e3b0692a06276666795b461a2c81bbcbc24c4f61d2e
