[INFO] crate shred-derive 0.5.1 is already in cache
[INFO] extracting crate shred-derive 0.5.1 into work/ex/clippy-test-run/sources/stable/reg/shred-derive/0.5.1
[INFO] extracting crate shred-derive 0.5.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/shred-derive/0.5.1
[INFO] validating manifest of shred-derive-0.5.1 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 shred-derive-0.5.1 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 shred-derive-0.5.1
[INFO] finished frobbing shred-derive-0.5.1
[INFO] frobbed toml for shred-derive-0.5.1 written to work/ex/clippy-test-run/sources/stable/reg/shred-derive/0.5.1/Cargo.toml
[INFO] started frobbing shred-derive-0.5.1
[INFO] finished frobbing shred-derive-0.5.1
[INFO] frobbed toml for shred-derive-0.5.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/shred-derive/0.5.1/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 shred-derive-0.5.1 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/reg/shred-derive/0.5.1:/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] 6b1e2251d4efc79f34ed8f3ac87dea36abe23cf7ca24e7f68b9b1f38bc876279
[INFO] running `"docker" "start" "-a" "6b1e2251d4efc79f34ed8f3ac87dea36abe23cf7ca24e7f68b9b1f38bc876279"`
[INFO] [stderr]     Checking shred-derive v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/lib.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let ref impl_fetch_lt = def_fetch_lt.lifetime;
[INFO] [stderr]    |     ----^^^^^^^^^^^^^^^^^------------------------- help: try: `let impl_fetch_lt = &def_fetch_lt.lifetime;`
[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:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let ref impl_fetch_lt = def_fetch_lt.lifetime;
[INFO] [stderr]    |     ----^^^^^^^^^^^^^^^^^------------------------- help: try: `let impl_fetch_lt = &def_fetch_lt.lifetime;`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "6b1e2251d4efc79f34ed8f3ac87dea36abe23cf7ca24e7f68b9b1f38bc876279"`
[INFO] running `"docker" "rm" "-f" "6b1e2251d4efc79f34ed8f3ac87dea36abe23cf7ca24e7f68b9b1f38bc876279"`
[INFO] [stdout] 6b1e2251d4efc79f34ed8f3ac87dea36abe23cf7ca24e7f68b9b1f38bc876279