[INFO] updating cached repository robot-head/led_dash
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/robot-head/led_dash
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/robot-head/led_dash" "work/ex/clippy-test-run/sources/stable/gh/robot-head/led_dash"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/robot-head/led_dash'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/robot-head/led_dash" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/robot-head/led_dash"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/robot-head/led_dash'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2d6066796182b919cddbabb9f7a854ac1eefab0b
[INFO] sha for GitHub repo robot-head/led_dash: 2d6066796182b919cddbabb9f7a854ac1eefab0b
[INFO] validating manifest of robot-head/led_dash 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 robot-head/led_dash 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 robot-head/led_dash
[INFO] finished frobbing robot-head/led_dash
[INFO] frobbed toml for robot-head/led_dash written to work/ex/clippy-test-run/sources/stable/gh/robot-head/led_dash/Cargo.toml
[INFO] started frobbing robot-head/led_dash
[INFO] finished frobbing robot-head/led_dash
[INFO] frobbed toml for robot-head/led_dash written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/robot-head/led_dash/Cargo.toml
[INFO] crate robot-head/led_dash has a lockfile. skipping
[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 robot-head/led_dash against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/robot-head/led_dash:/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] 6534d46bb6bdc70dabdd862682d6a727c769a7445e3436dac6dc53f6ac85bc27
[INFO] running `"docker" "start" "-a" "6534d46bb6bdc70dabdd862682d6a727c769a7445e3436dac6dc53f6ac85bc27"`
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]    Compiling brotli-sys v0.2.1
[INFO] [stderr]     Checking base64 v0.7.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]     Checking gzip-header v0.1.2
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking mime_guess v1.8.4
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking multipart v0.13.6
[INFO] [stderr]     Checking tiny_http v0.5.9
[INFO] [stderr]     Checking brotli2 v0.2.2
[INFO] [stderr]     Checking rouille v2.1.0
[INFO] [stderr]     Checking led_dash v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![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 `led_dash`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![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 `led_dash`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6534d46bb6bdc70dabdd862682d6a727c769a7445e3436dac6dc53f6ac85bc27"`
[INFO] running `"docker" "rm" "-f" "6534d46bb6bdc70dabdd862682d6a727c769a7445e3436dac6dc53f6ac85bc27"`
[INFO] [stdout] 6534d46bb6bdc70dabdd862682d6a727c769a7445e3436dac6dc53f6ac85bc27