[INFO] crate proc-macro-rules 0.2.1 is already in cache
[INFO] checking proc-macro-rules-0.2.1 against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] extracting crate proc-macro-rules 0.2.1 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate proc-macro-rules 0.2.1 on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate proc-macro-rules 0.2.1
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate proc-macro-rules 0.2.1
[INFO] tweaked toml for crates.io crate proc-macro-rules 0.2.1 written to work/builds/worker-3/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4ca309b1853d34c90a3c70b6dba0bc9890684d6b35a12d6e1e0e955e451fb7b4
[INFO] running `"docker" "start" "-a" "4ca309b1853d34c90a3c70b6dba0bc9890684d6b35a12d6e1e0e955e451fb7b4"`
[INFO] [stderr]    Compiling proc-macro-rules-macros v0.2.0
[INFO] [stderr]     Checking proc-macro-rules v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: the `#[proc_macro]` attribute is only usable with crates of the `proc-macro` crate type
[INFO] [stderr]   --> examples/macro_rules.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | #[proc_macro]
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `macro_rules`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/macro_rules.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `proc-macro-rules`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4ca309b1853d34c90a3c70b6dba0bc9890684d6b35a12d6e1e0e955e451fb7b4"`
[INFO] running `"docker" "rm" "-f" "4ca309b1853d34c90a3c70b6dba0bc9890684d6b35a12d6e1e0e955e451fb7b4"`
[INFO] [stdout] 4ca309b1853d34c90a3c70b6dba0bc9890684d6b35a12d6e1e0e955e451fb7b4