[INFO] fetching crate starlane-primitive-macros 0.3.21...
[INFO] testing starlane-primitive-macros-0.3.21 against 1.95.0-beta.3 for beta-1.95-3
[INFO] extracting crate starlane-primitive-macros 0.3.21 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate starlane-primitive-macros 0.3.21
[INFO] finished tweaking crates.io crate starlane-primitive-macros 0.3.21
[INFO] tweaked toml for crates.io crate starlane-primitive-macros 0.3.21 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate starlane-primitive-macros 0.3.21 on toolchain 1.95.0-beta.3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.3" "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" "+1.95.0-beta.3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.95.0-beta.3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f7cdb8a7b967be4ad83f51bcbaafd52c19fda6b09ec4090d84fab4fc569e549
[INFO] running `Command { std: "docker" "start" "-a" "6f7cdb8a7b967be4ad83f51bcbaafd52c19fda6b09ec4090d84fab4fc569e549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f7cdb8a7b967be4ad83f51bcbaafd52c19fda6b09ec4090d84fab4fc569e549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f7cdb8a7b967be4ad83f51bcbaafd52c19fda6b09ec4090d84fab4fc569e549", kill_on_drop: false }`
[INFO] [stdout] 6f7cdb8a7b967be4ad83f51bcbaafd52c19fda6b09ec4090d84fab4fc569e549
[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" "+1.95.0-beta.3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4153dcf6ebe492067a3a2c860b1ee090dc32aa6d1c71fcac5d70719a1b34340
[INFO] running `Command { std: "docker" "start" "-a" "b4153dcf6ebe492067a3a2c860b1ee090dc32aa6d1c71fcac5d70719a1b34340", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling winnow v0.7.15
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling toml_datetime v1.0.0+spec-1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling toml_parser v1.0.9+spec-1.1.0
[INFO] [stderr]    Compiling toml_edit v0.25.4+spec-1.1.0
[INFO] [stderr]    Compiling proc-macro-crate v3.5.0
[INFO] [stderr]    Compiling starlane-primitive-macros v0.3.21 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0539]: malformed `feature` attribute input
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[feature("proc_macro_lib2")]
[INFO] [stdout]   | ^^^^^^^^^^-----------------^^
[INFO] [stdout]   | |         |
[INFO] [stdout]   | |         expected a valid identifier here
[INFO] [stdout]   | help: must be of the form: `#[feature(feature1, feature2, ...)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0539`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `starlane-primitive-macros` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b4153dcf6ebe492067a3a2c860b1ee090dc32aa6d1c71fcac5d70719a1b34340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4153dcf6ebe492067a3a2c860b1ee090dc32aa6d1c71fcac5d70719a1b34340", kill_on_drop: false }`
[INFO] [stdout] b4153dcf6ebe492067a3a2c860b1ee090dc32aa6d1c71fcac5d70719a1b34340