[INFO] crate maud_macros 0.19.0 is already in cache
[INFO] extracting crate maud_macros 0.19.0 into work/ex/clippy-test-run/sources/stable/reg/maud_macros/0.19.0
[INFO] extracting crate maud_macros 0.19.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/maud_macros/0.19.0
[INFO] validating manifest of maud_macros-0.19.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of maud_macros-0.19.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing maud_macros-0.19.0
[INFO] finished frobbing maud_macros-0.19.0
[INFO] frobbed toml for maud_macros-0.19.0 written to work/ex/clippy-test-run/sources/stable/reg/maud_macros/0.19.0/Cargo.toml
[INFO] started frobbing maud_macros-0.19.0
[INFO] finished frobbing maud_macros-0.19.0
[INFO] frobbed toml for maud_macros-0.19.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/maud_macros/0.19.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting maud_macros-0.19.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/maud_macros/0.19.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bd7e6f084ed740fe08a3cd0528a9c6aa2c05ee928a15cccd42c950bb98f07fe3
[INFO] running `"docker" "start" "-a" "bd7e6f084ed740fe08a3cd0528a9c6aa2c05ee928a15cccd42c950bb98f07fe3"`
[INFO] [stderr]     Checking literalext v0.1.1
[INFO] [stderr]     Checking maud_htmlescape v0.17.0
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `literalext`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "bd7e6f084ed740fe08a3cd0528a9c6aa2c05ee928a15cccd42c950bb98f07fe3"`
[INFO] running `"docker" "rm" "-f" "bd7e6f084ed740fe08a3cd0528a9c6aa2c05ee928a15cccd42c950bb98f07fe3"`
[INFO] [stdout] bd7e6f084ed740fe08a3cd0528a9c6aa2c05ee928a15cccd42c950bb98f07fe3