[INFO] crate debug_sat 0.4.0 is already in cache [INFO] extracting crate debug_sat 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/debug_sat/0.4.0 [INFO] extracting crate debug_sat 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/debug_sat/0.4.0 [INFO] validating manifest of debug_sat-0.4.0 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 debug_sat-0.4.0 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 debug_sat-0.4.0 [INFO] finished frobbing debug_sat-0.4.0 [INFO] frobbed toml for debug_sat-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/debug_sat/0.4.0/Cargo.toml [INFO] started frobbing debug_sat-0.4.0 [INFO] finished frobbing debug_sat-0.4.0 [INFO] frobbed toml for debug_sat-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/debug_sat/0.4.0/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 debug_sat-0.4.0 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/debug_sat/0.4.0:/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 -Dclippy::into_iter_on_array" "-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] aede16a4d83d8e4f6c712703e43e948e0e34e2667d87257cdc277f015a62626c [INFO] running `"docker" "start" "-a" "aede16a4d83d8e4f6c712703e43e948e0e34e2667d87257cdc277f015a62626c"` [INFO] [stderr] Checking debug_sat v0.4.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:115:19 [INFO] [stderr] | [INFO] [stderr] 115 | #![cfg_attr(test, feature(test))] [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 `debug_sat`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Graph` [INFO] [stderr] --> src/lib.rs:142:5 [INFO] [stderr] | [INFO] [stderr] 142 | / pub fn new() -> Graph { [INFO] [stderr] 143 | | let mut havox = HashMap::new(); [INFO] [stderr] 144 | | // `true` is not equal to `false`. [INFO] [stderr] 145 | | havox.insert((0, 1), false); [INFO] [stderr] ... | [INFO] [stderr] 155 | | } [INFO] [stderr] 156 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_without_default_derive)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 125 | #[derive(Default)] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: You are using an explicit closure for cloning elements [INFO] [stderr] --> src/lib.rs:165:9 [INFO] [stderr] | [INFO] [stderr] 165 | self.map.get(expr).map(|&a| a) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.map.get(expr).cloned()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::map_clone)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone [INFO] [stderr] [INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead [INFO] [stderr] --> src/lib.rs:243:17 [INFO] [stderr] | [INFO] [stderr] 243 | let ref mut cache = self.cache.borrow_mut(); [INFO] [stderr] | ----^^^^^^^^^^^^^--------------------------- help: try: `let cache = &mut self.cache.borrow_mut();` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::toplevel_ref_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg [INFO] [stderr] [INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead [INFO] [stderr] --> src/lib.rs:327:13 [INFO] [stderr] | [INFO] [stderr] 327 | let ref mut cache = self.cache.borrow_mut(); [INFO] [stderr] | ----^^^^^^^^^^^^^--------------------------- help: try: `let cache = &mut self.cache.borrow_mut();` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "aede16a4d83d8e4f6c712703e43e948e0e34e2667d87257cdc277f015a62626c"` [INFO] running `"docker" "rm" "-f" "aede16a4d83d8e4f6c712703e43e948e0e34e2667d87257cdc277f015a62626c"` [INFO] [stdout] aede16a4d83d8e4f6c712703e43e948e0e34e2667d87257cdc277f015a62626c