[INFO] fetching crate solana-banks-client 4.0.0-beta.7...
[INFO] testing solana-banks-client-4.0.0-beta.7 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate solana-banks-client 4.0.0-beta.7 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate solana-banks-client 4.0.0-beta.7
[INFO] finished tweaking crates.io crate solana-banks-client 4.0.0-beta.7
[INFO] tweaked toml for crates.io crate solana-banks-client 4.0.0-beta.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate solana-banks-client 4.0.0-beta.7 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 crates.io crate solana-banks-client 4.0.0-beta.7 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 09803679f2fb039122ec772406c49efe4fe0fb45a67293a74a9a296b70cfb3f7
[INFO] running `Command { std: "docker" "start" "-a" "09803679f2fb039122ec772406c49efe4fe0fb45a67293a74a9a296b70cfb3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09803679f2fb039122ec772406c49efe4fe0fb45a67293a74a9a296b70cfb3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09803679f2fb039122ec772406c49efe4fe0fb45a67293a74a9a296b70cfb3f7", kill_on_drop: false }`
[INFO] [stdout] 09803679f2fb039122ec772406c49efe4fe0fb45a67293a74a9a296b70cfb3f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9adfeedac178a4ee50bf87742a690ab8eb59778e2ad8edc15cf7af0ae5631303
[INFO] running `Command { std: "docker" "start" "-a" "9adfeedac178a4ee50bf87742a690ab8eb59778e2ad8edc15cf7af0ae5631303", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.14
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[INFO] [stderr]    Compiling solana-banks-interface v4.0.0-beta.7
[INFO] [stderr]    Compiling solana-banks-client v4.0.0-beta.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 45.23s
[INFO] running `Command { std: "docker" "inspect" "9adfeedac178a4ee50bf87742a690ab8eb59778e2ad8edc15cf7af0ae5631303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9adfeedac178a4ee50bf87742a690ab8eb59778e2ad8edc15cf7af0ae5631303", kill_on_drop: false }`
[INFO] [stdout] 9adfeedac178a4ee50bf87742a690ab8eb59778e2ad8edc15cf7af0ae5631303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08e8ba1c3aa9b8d50a4c0ce7734a36c2ce96dbdf3d14da793dc5b00cfa596d7e
[INFO] running `Command { std: "docker" "start" "-a" "08e8ba1c3aa9b8d50a4c0ce7734a36c2ce96dbdf3d14da793dc5b00cfa596d7e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling displaydoc v0.2.3
[INFO] [stderr]    Compiling ark-serialize-derive v0.4.2
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling gethostname v1.1.0
[INFO] [stderr]    Compiling solana-big-mod-exp v3.0.0
[INFO] [stderr]    Compiling minimal-lexical v0.1.4
[INFO] [stderr]    Compiling solana-measure v4.0.0-beta.7
[INFO] [stderr]    Compiling solana-version v4.0.0-beta.7
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling hashbrown v0.14.3
[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=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.116/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=5f84a86afdf43cab -C extra-filename=-a951a630e8746961 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7cfab9ed8ffe0bb1.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-556bb8fb10269877.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-479310822a796184.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "08e8ba1c3aa9b8d50a4c0ce7734a36c2ce96dbdf3d14da793dc5b00cfa596d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08e8ba1c3aa9b8d50a4c0ce7734a36c2ce96dbdf3d14da793dc5b00cfa596d7e", kill_on_drop: false }`
[INFO] [stdout] 08e8ba1c3aa9b8d50a4c0ce7734a36c2ce96dbdf3d14da793dc5b00cfa596d7e
