[INFO] crate macro-utils 0.1.2 is already in cache
[INFO] extracting crate macro-utils 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/macro-utils/0.1.2
[INFO] extracting crate macro-utils 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/macro-utils/0.1.2
[INFO] validating manifest of macro-utils-0.1.2 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 macro-utils-0.1.2 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 macro-utils-0.1.2
[INFO] finished frobbing macro-utils-0.1.2
[INFO] frobbed toml for macro-utils-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/macro-utils/0.1.2/Cargo.toml
[INFO] started frobbing macro-utils-0.1.2
[INFO] finished frobbing macro-utils-0.1.2
[INFO] frobbed toml for macro-utils-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/macro-utils/0.1.2/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 macro-utils-0.1.2 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/macro-utils/0.1.2:/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] ba7c8d26ae9f24b3072d5e706912bb1c96695fd220874f566662a2b3f67e3565
[INFO] running `"docker" "start" "-a" "ba7c8d26ae9f24b3072d5e706912bb1c96695fd220874f566662a2b3f67e3565"`
[INFO] [stderr]     Checking macro-utils v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: this if-then-else expression returns a bool literal
[INFO] [stderr]    --> src/if_match.rs:87:9
[INFO] [stderr]     |
[INFO] [stderr] 87  | /         if $(let $expr =)* $cond {
[INFO] [stderr] 88  | |             $then
[INFO] [stderr] 89  | |         } else {
[INFO] [stderr] 90  | |             $elsethen
[INFO] [stderr] 91  | |         }
[INFO] [stderr]     | |_________^ help: you can reduce it to: `x % 2 == 0`
[INFO] [stderr] ...
[INFO] [stderr] 123 |       let is_even = if_match! {
[INFO] [stderr]     |  ___________________-
[INFO] [stderr] 124 | |         x % 2 == 0 => true,
[INFO] [stderr] 125 | |         else => false,
[INFO] [stderr] 126 | |     };
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "ba7c8d26ae9f24b3072d5e706912bb1c96695fd220874f566662a2b3f67e3565"`
[INFO] running `"docker" "rm" "-f" "ba7c8d26ae9f24b3072d5e706912bb1c96695fd220874f566662a2b3f67e3565"`
[INFO] [stdout] ba7c8d26ae9f24b3072d5e706912bb1c96695fd220874f566662a2b3f67e3565