[INFO] crate lru-cache-macros 0.3.1 is already in cache
[INFO] extracting crate lru-cache-macros 0.3.1 into work/ex/clippy-test-run/sources/stable/reg/lru-cache-macros/0.3.1
[INFO] extracting crate lru-cache-macros 0.3.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lru-cache-macros/0.3.1
[INFO] validating manifest of lru-cache-macros-0.3.1 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 lru-cache-macros-0.3.1 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 lru-cache-macros-0.3.1
[INFO] finished frobbing lru-cache-macros-0.3.1
[INFO] frobbed toml for lru-cache-macros-0.3.1 written to work/ex/clippy-test-run/sources/stable/reg/lru-cache-macros/0.3.1/Cargo.toml
[INFO] started frobbing lru-cache-macros-0.3.1
[INFO] finished frobbing lru-cache-macros-0.3.1
[INFO] frobbed toml for lru-cache-macros-0.3.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lru-cache-macros/0.3.1/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 lru-cache-macros-0.3.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/lru-cache-macros/0.3.1:/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] c4e2601e88f2c542015acdbd0a61a305ab735cd3078d01555b1dce30041d3632
[INFO] running `"docker" "start" "-a" "c4e2601e88f2c542015acdbd0a61a305ab735cd3078d01555b1dce30041d3632"`
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking lru-cache-macros v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:363:38
[INFO] [stderr]     |
[INFO] [stderr] 363 |     segments.push(syn::PathSegment { ident: ident, arguments: syn::PathArguments::None });
[INFO] [stderr]     |                                      ^^^^^^^^^^^^ help: replace it with: `ident`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:364:108
[INFO] [stderr]     |
[INFO] [stderr] 364 |     syn::Expr::Path(syn::ExprPath { attrs: Vec::new(), qself: None, path: syn::Path { leading_colon: None, segments: segments} })
[INFO] [stderr]     |                                                                                                            ^^^^^^^^^^^^^^^^^^ help: replace it with: `segments`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:363:38
[INFO] [stderr]     |
[INFO] [stderr] 363 |     segments.push(syn::PathSegment { ident: ident, arguments: syn::PathArguments::None });
[INFO] [stderr]     |                                      ^^^^^^^^^^^^ help: replace it with: `ident`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:364:108
[INFO] [stderr]     |
[INFO] [stderr] 364 |     syn::Expr::Path(syn::ExprPath { attrs: Vec::new(), qself: None, path: syn::Path { leading_colon: None, segments: segments} })
[INFO] [stderr]     |                                                                                                            ^^^^^^^^^^^^^^^^^^ help: replace it with: `segments`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]    --> src/lib.rs:178:1
[INFO] [stderr]     |
[INFO] [stderr] 178 | #![feature(extern_crate_item_prelude)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]    --> src/lib.rs:179:1
[INFO] [stderr]     |
[INFO] [stderr] 179 | #![feature(proc_macro_diagnostic)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `lru-cache-macros`.
[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/lib.rs:178:1
[INFO] [stderr]     |
[INFO] [stderr] 178 | #![feature(extern_crate_item_prelude)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]    --> src/lib.rs:179:1
[INFO] [stderr]     |
[INFO] [stderr] 179 | #![feature(proc_macro_diagnostic)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `lru-cache-macros`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c4e2601e88f2c542015acdbd0a61a305ab735cd3078d01555b1dce30041d3632"`
[INFO] running `"docker" "rm" "-f" "c4e2601e88f2c542015acdbd0a61a305ab735cd3078d01555b1dce30041d3632"`
[INFO] [stdout] c4e2601e88f2c542015acdbd0a61a305ab735cd3078d01555b1dce30041d3632