[INFO] crate fd 0.2.3 is already in cache
[INFO] extracting crate fd 0.2.3 into work/ex/clippy-test-run/sources/stable/reg/fd/0.2.3
[INFO] extracting crate fd 0.2.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fd/0.2.3
[INFO] validating manifest of fd-0.2.3 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 fd-0.2.3 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 fd-0.2.3
[INFO] finished frobbing fd-0.2.3
[INFO] frobbed toml for fd-0.2.3 written to work/ex/clippy-test-run/sources/stable/reg/fd/0.2.3/Cargo.toml
[INFO] started frobbing fd-0.2.3
[INFO] finished frobbing fd-0.2.3
[INFO] frobbed toml for fd-0.2.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fd/0.2.3/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 fd-0.2.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/fd/0.2.3:/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] b6a89f7341979cd2b8981de325ec642ecf73ac6bef3e5fe8bed934ee1d3733e6
[INFO] running `"docker" "start" "-a" "b6a89f7341979cd2b8981de325ec642ecf73ac6bef3e5fe8bed934ee1d3733e6"`
[INFO] [stderr]     Checking fd v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             fd: fd,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `fd`
[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:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             close_on_drop: close_on_drop,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `close_on_drop`
[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:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             fd: fd,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `fd`
[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:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             close_on_drop: close_on_drop,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `close_on_drop`
[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: long literal lacking separators
[INFO] [stderr]   --> src/pipe.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub const O_CLOEXEC: c_int = 0o2000000;
[INFO] [stderr]    |                                  ^^^^^^^^^ help: consider: `0o2_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pipe.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub const O_CLOEXEC: c_int = 0o2000000;
[INFO] [stderr]    |                                  ^^^^^^^^^ help: consider: `0o2_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/splice.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn splice(fd_in: &RawFd, fd_out: &RawFd, len: size_t, mode: SpliceMode) -> io::Result<ssize_t> {
[INFO] [stderr]    |                  ^^^^^^ help: consider passing by value instead: `RawFd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/splice.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn splice(fd_in: &RawFd, fd_out: &RawFd, len: size_t, mode: SpliceMode) -> io::Result<ssize_t> {
[INFO] [stderr]    |                                  ^^^^^^ help: consider passing by value instead: `RawFd`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/splice.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | /     match flush_event {
[INFO] [stderr] 89 | |         Some(event) => {
[INFO] [stderr] 90 | |             let _ = event.send(());
[INFO] [stderr] 91 | |         },
[INFO] [stderr] 92 | |         None => {}
[INFO] [stderr] 93 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 88 |     if let Some(event) = flush_event {
[INFO] [stderr] 89 |     let _ = event.send(());
[INFO] [stderr] 90 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/splice.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn splice(fd_in: &RawFd, fd_out: &RawFd, len: size_t, mode: SpliceMode) -> io::Result<ssize_t> {
[INFO] [stderr]    |                  ^^^^^^ help: consider passing by value instead: `RawFd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/splice.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn splice(fd_in: &RawFd, fd_out: &RawFd, len: size_t, mode: SpliceMode) -> io::Result<ssize_t> {
[INFO] [stderr]    |                                  ^^^^^^ help: consider passing by value instead: `RawFd`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/splice.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | /     match flush_event {
[INFO] [stderr] 89 | |         Some(event) => {
[INFO] [stderr] 90 | |             let _ = event.send(());
[INFO] [stderr] 91 | |         },
[INFO] [stderr] 92 | |         None => {}
[INFO] [stderr] 93 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 88 |     if let Some(event) = flush_event {
[INFO] [stderr] 89 |     let _ = event.send(());
[INFO] [stderr] 90 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "b6a89f7341979cd2b8981de325ec642ecf73ac6bef3e5fe8bed934ee1d3733e6"`
[INFO] running `"docker" "rm" "-f" "b6a89f7341979cd2b8981de325ec642ecf73ac6bef3e5fe8bed934ee1d3733e6"`
[INFO] [stdout] b6a89f7341979cd2b8981de325ec642ecf73ac6bef3e5fe8bed934ee1d3733e6