[INFO] cloning repository https://github.com/medicindev/florest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/medicindev/florest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedicindev%2Fflorest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedicindev%2Fflorest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8c4de808603fc642dae40882efaea3ad87281b4
[INFO] testing medicindev/florest against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedicindev%2Fflorest" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/medicindev/florest
[INFO] finished tweaking git repo https://github.com/medicindev/florest
[INFO] tweaked toml for git repo https://github.com/medicindev/florest written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/medicindev/florest 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/medicindev/florest 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e1ad4a16341d397c831ea9ad16b148482cef85e149f657fee40d62fe6c6a15b8
[INFO] running `Command { std: "docker" "start" "-a" "e1ad4a16341d397c831ea9ad16b148482cef85e149f657fee40d62fe6c6a15b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1ad4a16341d397c831ea9ad16b148482cef85e149f657fee40d62fe6c6a15b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ad4a16341d397c831ea9ad16b148482cef85e149f657fee40d62fe6c6a15b8", kill_on_drop: false }`
[INFO] [stdout] e1ad4a16341d397c831ea9ad16b148482cef85e149f657fee40d62fe6c6a15b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4e47d11c8e49021a0e59e9dffc79de588c588316474cfe3202a7808825dbc3da
[INFO] running `Command { std: "docker" "start" "-a" "4e47d11c8e49021a0e59e9dffc79de588c588316474cfe3202a7808825dbc3da", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling cc v1.1.31
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling bitcoin-internals v0.3.0
[INFO] [stderr]    Compiling hex-conservative v0.2.1
[INFO] [stderr]    Compiling bitcoin-io v0.1.2
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling bytes v1.8.0
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling bitcoin v0.32.4
[INFO] [stderr]    Compiling bech32 v0.11.0
[INFO] [stderr]    Compiling thiserror v1.0.65
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling cpufeatures v0.2.14
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling anstyle v1.0.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling anyhow v1.0.91
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling anstream v0.6.17
[INFO] [stderr]    Compiling unicode-bidi v0.3.17
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bstr v1.10.0
[INFO] [stderr]    Compiling minreq v2.12.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]    Compiling oneshot v0.1.8
[INFO] [stderr]    Compiling unicase v2.8.0
[INFO] [stderr]    Compiling secp256k1-sys v0.10.1
[INFO] [stderr]    Compiling bitcoinconsensus v0.105.0+25.1
[INFO] [stderr]    Compiling bitcoinconsensus v0.106.0+26.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling sled v0.34.7
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling globset v0.4.15
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling dns-lookup v1.0.8
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling dirs v4.0.0
[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="fold"' --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=c9db56af25850e22 -C extra-filename=-99c7ffe06054ccd5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b0a42834f2d45f3e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-58fd5e57e9a2567b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-036d125577327e03.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" "4e47d11c8e49021a0e59e9dffc79de588c588316474cfe3202a7808825dbc3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e47d11c8e49021a0e59e9dffc79de588c588316474cfe3202a7808825dbc3da", kill_on_drop: false }`
[INFO] [stdout] 4e47d11c8e49021a0e59e9dffc79de588c588316474cfe3202a7808825dbc3da