[INFO] fetching crate starlane-primitive-macros 0.3.21...
[INFO] testing starlane-primitive-macros-0.3.21 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate starlane-primitive-macros 0.3.21 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate starlane-primitive-macros 0.3.21 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2716c3e55f3dfe04360a564de3c8ea0fa2daa6533eae341b574aef95057322e6
[INFO] running `Command { std: "docker" "start" "-a" "2716c3e55f3dfe04360a564de3c8ea0fa2daa6533eae341b574aef95057322e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2716c3e55f3dfe04360a564de3c8ea0fa2daa6533eae341b574aef95057322e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2716c3e55f3dfe04360a564de3c8ea0fa2daa6533eae341b574aef95057322e6", kill_on_drop: false }`
[INFO] [stdout] 2716c3e55f3dfe04360a564de3c8ea0fa2daa6533eae341b574aef95057322e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81f435aae3a919d7f0d121f30170c9b659d5e604b5744bd2189e7bb9a97b9d89
[INFO] running `Command { std: "docker" "start" "-a" "81f435aae3a919d7f0d121f30170c9b659d5e604b5744bd2189e7bb9a97b9d89", kill_on_drop: false }`
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_edit v0.25.11+spec-1.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[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" "81f435aae3a919d7f0d121f30170c9b659d5e604b5744bd2189e7bb9a97b9d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f435aae3a919d7f0d121f30170c9b659d5e604b5744bd2189e7bb9a97b9d89", kill_on_drop: false }`
[INFO] [stdout] 81f435aae3a919d7f0d121f30170c9b659d5e604b5744bd2189e7bb9a97b9d89