[INFO] crate pbuf 0.3.31 is already in cache
[INFO] extracting crate pbuf 0.3.31 into work/ex/clippy-test-run/sources/stable/reg/pbuf/0.3.31
[INFO] extracting crate pbuf 0.3.31 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pbuf/0.3.31
[INFO] validating manifest of pbuf-0.3.31 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 pbuf-0.3.31 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 pbuf-0.3.31
[INFO] finished frobbing pbuf-0.3.31
[INFO] frobbed toml for pbuf-0.3.31 written to work/ex/clippy-test-run/sources/stable/reg/pbuf/0.3.31/Cargo.toml
[INFO] started frobbing pbuf-0.3.31
[INFO] finished frobbing pbuf-0.3.31
[INFO] frobbed toml for pbuf-0.3.31 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pbuf/0.3.31/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 pbuf-0.3.31 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/pbuf/0.3.31:/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] d325a415c4b7a768d4f5dc31111d483a6a393ad793dcda353940b6eea5469a6a
[INFO] running `"docker" "start" "-a" "d325a415c4b7a768d4f5dc31111d483a6a393ad793dcda353940b6eea5469a6a"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking pbuf v0.3.31 (/opt/crater/workdir)
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/lib.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 | /   loop {
[INFO] [stderr] 15 | |     match reader.read_exact(&mut head) {
[INFO] [stderr] 16 | |       Ok(n) => n,
[INFO] [stderr] 17 | |       Err(_) => break
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |     msgs.push(msg);
[INFO] [stderr] 30 | |   }
[INFO] [stderr]    | |___^ help: try: `while let Ok(n) = reader.read_exact(&mut head) { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `parse_from_bytes<M>` doesn't need a mutable reference
[INFO] [stderr]   --> src/lib.rs:25:39
[INFO] [stderr]    |
[INFO] [stderr] 25 |     msg = match parse_from_bytes::<M>(&mut proto) {
[INFO] [stderr]    |                                       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/lib.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn header(sz: &Vec<u8>) -> usize {
[INFO] [stderr]    |               ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/lib.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 | /   loop {
[INFO] [stderr] 15 | |     match reader.read_exact(&mut head) {
[INFO] [stderr] 16 | |       Ok(n) => n,
[INFO] [stderr] 17 | |       Err(_) => break
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |     msgs.push(msg);
[INFO] [stderr] 30 | |   }
[INFO] [stderr]    | |___^ help: try: `while let Ok(n) = reader.read_exact(&mut head) { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `parse_from_bytes<M>` doesn't need a mutable reference
[INFO] [stderr]   --> src/lib.rs:25:39
[INFO] [stderr]    |
[INFO] [stderr] 25 |     msg = match parse_from_bytes::<M>(&mut proto) {
[INFO] [stderr]    |                                       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/lib.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn header(sz: &Vec<u8>) -> usize {
[INFO] [stderr]    |               ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "d325a415c4b7a768d4f5dc31111d483a6a393ad793dcda353940b6eea5469a6a"`
[INFO] running `"docker" "rm" "-f" "d325a415c4b7a768d4f5dc31111d483a6a393ad793dcda353940b6eea5469a6a"`
[INFO] [stdout] d325a415c4b7a768d4f5dc31111d483a6a393ad793dcda353940b6eea5469a6a