[INFO] fetching crate rust_hls_macro 0.2.0...
[INFO] testing rust_hls_macro-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rust_hls_macro 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rust_hls_macro 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rust_hls_macro 0.2.0
[INFO] tweaked toml for crates.io crate rust_hls_macro 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_hls_macro 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 95 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.20.11 (available: v0.21.3)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding rust-hdl v0.45.1 (available: v0.46.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43a0d345d344ed9f834ccc4a3f52dedcbd701a51f8cfd0d8bd2450cd76e10cef
[INFO] running `Command { std: "docker" "start" "-a" "43a0d345d344ed9f834ccc4a3f52dedcbd701a51f8cfd0d8bd2450cd76e10cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43a0d345d344ed9f834ccc4a3f52dedcbd701a51f8cfd0d8bd2450cd76e10cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43a0d345d344ed9f834ccc4a3f52dedcbd701a51f8cfd0d8bd2450cd76e10cef", kill_on_drop: false }`
[INFO] [stdout] 43a0d345d344ed9f834ccc4a3f52dedcbd701a51f8cfd0d8bd2450cd76e10cef
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16e0d5f89ab7b5f0d94740a36ed9aaa4b39cbf2a5bc5e0783593181da6cdbdcc
[INFO] running `Command { std: "docker" "start" "-a" "16e0d5f89ab7b5f0d94740a36ed9aaa4b39cbf2a5bc5e0783593181da6cdbdcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling evalexpr v6.6.0
[INFO] [stderr]    Compiling svg v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling vcd v0.6.1
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling indexmap v2.12.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling rust-hdl-macros v0.45.1
[INFO] [stderr]    Compiling embed-doc-image v0.1.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling rust-hdl-core v0.45.1
[INFO] [stderr]    Compiling rust-hdl-widgets v0.45.1
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling rust_hls_macro_lib v0.1.0
[INFO] [stderr]    Compiling rust-hdl-sim v0.45.1
[INFO] [stderr]    Compiling rust-hdl-hls v0.45.1
[INFO] [stderr]    Compiling rust-hdl v0.45.1
[INFO] [stderr]    Compiling rust_hls_macro v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_hls_macro` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "16e0d5f89ab7b5f0d94740a36ed9aaa4b39cbf2a5bc5e0783593181da6cdbdcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e0d5f89ab7b5f0d94740a36ed9aaa4b39cbf2a5bc5e0783593181da6cdbdcc", kill_on_drop: false }`
[INFO] [stdout] 16e0d5f89ab7b5f0d94740a36ed9aaa4b39cbf2a5bc5e0783593181da6cdbdcc