[INFO] fetching crate pulsar-client 0.0.1...
[INFO] testing pulsar-client-0.0.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pulsar-client 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate pulsar-client 0.0.1
[INFO] finished tweaking crates.io crate pulsar-client 0.0.1
[INFO] tweaked toml for crates.io crate pulsar-client 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pulsar-client 0.0.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 116 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2e9ad18d16a3030f47d1ecad75f3b55bce87a955a51cf5ef6a83fffe98a30a3a
[INFO] running `Command { std: "docker" "start" "-a" "2e9ad18d16a3030f47d1ecad75f3b55bce87a955a51cf5ef6a83fffe98a30a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e9ad18d16a3030f47d1ecad75f3b55bce87a955a51cf5ef6a83fffe98a30a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e9ad18d16a3030f47d1ecad75f3b55bce87a955a51cf5ef6a83fffe98a30a3a", kill_on_drop: false }`
[INFO] [stdout] 2e9ad18d16a3030f47d1ecad75f3b55bce87a955a51cf5ef6a83fffe98a30a3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 434e99629673085e2d273c5c17503a1f20d9479dc0798c7e6144ce825b19d4af
[INFO] running `Command { std: "docker" "start" "-a" "434e99629673085e2d273c5c17503a1f20d9479dc0798c7e6144ce825b19d4af", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling seq-macro v0.2.2
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling crc32c v0.6.8
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling futures-x-io v0.3.0
[INFO] [stderr]    Compiling futures-x-io-timeoutable v0.3.2
[INFO] [stderr]    Compiling pulsar-binary-protocol-spec v0.0.1
[INFO] [stdout] error[E0658]: custom inner attributes are unstable
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pulsar-binary-protocol-spec-0.0.1/src/protos/protobuf/PulsarApi.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pulsar-binary-protocol-spec` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "434e99629673085e2d273c5c17503a1f20d9479dc0798c7e6144ce825b19d4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "434e99629673085e2d273c5c17503a1f20d9479dc0798c7e6144ce825b19d4af", kill_on_drop: false }`
[INFO] [stdout] 434e99629673085e2d273c5c17503a1f20d9479dc0798c7e6144ce825b19d4af
