[INFO] crate rix 0.3.0 is already in cache
[INFO] extracting crate rix 0.3.0 into work/ex/clippy-test-run/sources/stable/reg/rix/0.3.0
[INFO] extracting crate rix 0.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rix/0.3.0
[INFO] validating manifest of rix-0.3.0 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 rix-0.3.0 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 rix-0.3.0
[INFO] finished frobbing rix-0.3.0
[INFO] frobbed toml for rix-0.3.0 written to work/ex/clippy-test-run/sources/stable/reg/rix/0.3.0/Cargo.toml
[INFO] started frobbing rix-0.3.0
[INFO] finished frobbing rix-0.3.0
[INFO] frobbed toml for rix-0.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rix/0.3.0/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 rix-0.3.0 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/rix/0.3.0:/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] 291526af033c8950cef0177c4e74bf67f951c1688bcf0206b6b7d02b310802c9
[INFO] running `"docker" "start" "-a" "291526af033c8950cef0177c4e74bf67f951c1688bcf0206b6b7d02b310802c9"`
[INFO] [stderr]     Checking rix v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/client/sync.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use error;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json`
[INFO] [stderr]  --> src/client/message.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde_json;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/client/message.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/client/message.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use error;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/client/sync.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use error;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json`
[INFO] [stderr]  --> src/client/message.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde_json;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/client/message.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/client/message.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use error;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client/sync.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut request = hyper::Request::new(hyper::Method::Get,
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client/sync.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut request = hyper::Request::new(hyper::Method::Get,
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/client/sync.rs:53:29
[INFO] [stderr]    |
[INFO] [stderr] 53 |               .filter_map(|x| match x {
[INFO] [stderr]    |  _____________________________^
[INFO] [stderr] 54 | |                 &Some(ref x) => Some(x),
[INFO] [stderr] 55 | |                 &None => None
[INFO] [stderr] 56 | |             })
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 53 |             .filter_map(|x| match *x {
[INFO] [stderr] 54 |                 Some(ref x) => Some(x),
[INFO] [stderr] 55 |                 None => None
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/client/sync.rs:53:29
[INFO] [stderr]    |
[INFO] [stderr] 53 |               .filter_map(|x| match x {
[INFO] [stderr]    |  _____________________________^
[INFO] [stderr] 54 | |                 &Some(ref x) => Some(x),
[INFO] [stderr] 55 | |                 &None => None
[INFO] [stderr] 56 | |             })
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 53 |             .filter_map(|x| match *x {
[INFO] [stderr] 54 |                 Some(ref x) => Some(x),
[INFO] [stderr] 55 |                 None => None
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.90s
[INFO] running `"docker" "inspect" "291526af033c8950cef0177c4e74bf67f951c1688bcf0206b6b7d02b310802c9"`
[INFO] running `"docker" "rm" "-f" "291526af033c8950cef0177c4e74bf67f951c1688bcf0206b6b7d02b310802c9"`
[INFO] [stdout] 291526af033c8950cef0177c4e74bf67f951c1688bcf0206b6b7d02b310802c9