[INFO] updating cached repository hhatto/fpath
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hhatto/fpath
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hhatto/fpath" "work/ex/clippy-test-run/sources/stable/gh/hhatto/fpath"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/hhatto/fpath'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hhatto/fpath" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hhatto/fpath"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hhatto/fpath'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0afab044daae2f1ffc40867c03fe7eb4c513cf83
[INFO] sha for GitHub repo hhatto/fpath: 0afab044daae2f1ffc40867c03fe7eb4c513cf83
[INFO] validating manifest of hhatto/fpath 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 hhatto/fpath 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 hhatto/fpath
[INFO] finished frobbing hhatto/fpath
[INFO] frobbed toml for hhatto/fpath written to work/ex/clippy-test-run/sources/stable/gh/hhatto/fpath/Cargo.toml
[INFO] started frobbing hhatto/fpath
[INFO] finished frobbing hhatto/fpath
[INFO] frobbed toml for hhatto/fpath written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hhatto/fpath/Cargo.toml
[INFO] crate hhatto/fpath 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 hhatto/fpath 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/hhatto/fpath:/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] fafc17b3741d9f772cd45a896e271cd67888a5009be76cb0a084b696c34dca71
[INFO] running `"docker" "start" "-a" "fafc17b3741d9f772cd45a896e271cd67888a5009be76cb0a084b696c34dca71"`
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]     Checking users v0.6.1
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]    Compiling syn v0.15.22
[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/spin-0.4.10/src/lib.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[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 `spin`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "fafc17b3741d9f772cd45a896e271cd67888a5009be76cb0a084b696c34dca71"`
[INFO] running `"docker" "rm" "-f" "fafc17b3741d9f772cd45a896e271cd67888a5009be76cb0a084b696c34dca71"`
[INFO] [stdout] fafc17b3741d9f772cd45a896e271cd67888a5009be76cb0a084b696c34dca71