[INFO] updating cached repository jswrenn/basicb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jswrenn/basicb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jswrenn/basicb" "work/ex/clippy-test-run/sources/stable/gh/jswrenn/basicb"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jswrenn/basicb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jswrenn/basicb" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jswrenn/basicb"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jswrenn/basicb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 456d3122053bb1cd834576c48803d8d4a367c7e4
[INFO] sha for GitHub repo jswrenn/basicb: 456d3122053bb1cd834576c48803d8d4a367c7e4
[INFO] validating manifest of jswrenn/basicb 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 jswrenn/basicb 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 jswrenn/basicb
[INFO] finished frobbing jswrenn/basicb
[INFO] frobbed toml for jswrenn/basicb written to work/ex/clippy-test-run/sources/stable/gh/jswrenn/basicb/Cargo.toml
[INFO] started frobbing jswrenn/basicb
[INFO] finished frobbing jswrenn/basicb
[INFO] frobbed toml for jswrenn/basicb written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jswrenn/basicb/Cargo.toml
[INFO] crate jswrenn/basicb 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 jswrenn/basicb 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/jswrenn/basicb:/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] 52b16c89f85c7e77db7b212fdb414badf402a69b9c261c8f11f16a98332b17ad
[INFO] running `"docker" "start" "-a" "52b16c89f85c7e77db7b212fdb414badf402a69b9c261c8f11f16a98332b17ad"`
[INFO] [stderr]    Compiling dimensioned v0.6.0
[INFO] [stderr]     Checking generic-array v0.5.1
[INFO] [stderr]    Compiling structopt-derive v0.2.6
[INFO] [stderr]     Checking structopt v0.2.6
[INFO] [stderr]     Checking beep v0.2.0
[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/beep-0.2.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(libc)]
[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 `beep`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "52b16c89f85c7e77db7b212fdb414badf402a69b9c261c8f11f16a98332b17ad"`
[INFO] running `"docker" "rm" "-f" "52b16c89f85c7e77db7b212fdb414badf402a69b9c261c8f11f16a98332b17ad"`
[INFO] [stdout] 52b16c89f85c7e77db7b212fdb414badf402a69b9c261c8f11f16a98332b17ad