[INFO] crate auto_from 0.1.0 is already in cache
[INFO] extracting crate auto_from 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/auto_from/0.1.0
[INFO] extracting crate auto_from 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/auto_from/0.1.0
[INFO] validating manifest of auto_from-0.1.0 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 auto_from-0.1.0 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 auto_from-0.1.0
[INFO] finished frobbing auto_from-0.1.0
[INFO] frobbed toml for auto_from-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/auto_from/0.1.0/Cargo.toml
[INFO] started frobbing auto_from-0.1.0
[INFO] finished frobbing auto_from-0.1.0
[INFO] frobbed toml for auto_from-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/auto_from/0.1.0/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 auto_from-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/auto_from/0.1.0:/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] 33a4089bc9f38f90cd48c9c870f820bc5c6d4c1ba41dcaa4c4ad503a81a3ba31
[INFO] running `"docker" "start" "-a" "33a4089bc9f38f90cd48c9c870f820bc5c6d4c1ba41dcaa4c4ad503a81a3ba31"`
[INFO] [stderr]    Compiling auto_from v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/lib.rs:61:57
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Some(ref pair) if named.named.len() == 1 => pair.value().clone(),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Some(ref pair) if named.named.len() == 1 => &(*pair.value()).clone(),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Some(ref pair) if named.named.len() == 1 => &syn::Field::clone(pair.value()),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/lib.rs:65:61
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Some(ref pair) if unnamed.unnamed.len() == 1 => pair.value().clone(),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Some(ref pair) if unnamed.unnamed.len() == 1 => &(*pair.value()).clone(),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Some(ref pair) if unnamed.unnamed.len() == 1 => &syn::Field::clone(pair.value()),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `auto_from`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/lib.rs:61:57
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Some(ref pair) if named.named.len() == 1 => pair.value().clone(),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Some(ref pair) if named.named.len() == 1 => &(*pair.value()).clone(),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Some(ref pair) if named.named.len() == 1 => &syn::Field::clone(pair.value()),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/lib.rs:65:61
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Some(ref pair) if unnamed.unnamed.len() == 1 => pair.value().clone(),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Some(ref pair) if unnamed.unnamed.len() == 1 => &(*pair.value()).clone(),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Some(ref pair) if unnamed.unnamed.len() == 1 => &syn::Field::clone(pair.value()),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `auto_from`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "33a4089bc9f38f90cd48c9c870f820bc5c6d4c1ba41dcaa4c4ad503a81a3ba31"`
[INFO] running `"docker" "rm" "-f" "33a4089bc9f38f90cd48c9c870f820bc5c6d4c1ba41dcaa4c4ad503a81a3ba31"`
[INFO] [stdout] 33a4089bc9f38f90cd48c9c870f820bc5c6d4c1ba41dcaa4c4ad503a81a3ba31