[INFO] updating cached repository juli1/rust-json-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/juli1/rust-json-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/juli1/rust-json-example" "work/ex/clippy-test-run/sources/stable/gh/juli1/rust-json-example"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/juli1/rust-json-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/juli1/rust-json-example" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/juli1/rust-json-example"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/juli1/rust-json-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf8c7b96349598177774fba4b87e4ffa23e215b2
[INFO] sha for GitHub repo juli1/rust-json-example: bf8c7b96349598177774fba4b87e4ffa23e215b2
[INFO] validating manifest of juli1/rust-json-example 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 juli1/rust-json-example 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 juli1/rust-json-example
[INFO] finished frobbing juli1/rust-json-example
[INFO] frobbed toml for juli1/rust-json-example written to work/ex/clippy-test-run/sources/stable/gh/juli1/rust-json-example/Cargo.toml
[INFO] started frobbing juli1/rust-json-example
[INFO] finished frobbing juli1/rust-json-example
[INFO] frobbed toml for juli1/rust-json-example written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/juli1/rust-json-example/Cargo.toml
[INFO] crate juli1/rust-json-example has a lockfile. skipping
[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 juli1/rust-json-example against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/juli1/rust-json-example:/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] 240b717d0923d3b3ee297925c32f83a060afcc70d0f934db515e66cf39c5f3da
[INFO] running `"docker" "start" "-a" "240b717d0923d3b3ee297925c32f83a060afcc70d0f934db515e66cf39c5f3da"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Checking tokio v0.0.0
[INFO] [stderr]     Checking http v0.1.4
[INFO] [stderr]     Checking mio v0.6.12
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking openssl-sys v0.9.24
[INFO] [stderr]     Checking openssl v0.9.23
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.16
[INFO] [stderr]     Checking hyper-tls v0.1.2
[INFO] [stderr]     Checking rust-json v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/common.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return r;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/unspecialized.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     return serde_json::from_str(s_slice).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `serde_json::from_str(s_slice).unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/unspecialized.rs:30:15
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let url = args.get(1).unwrap();
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/common.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return r;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/specialized.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     return v;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/common.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return r;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/unspecialized.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     return serde_json::from_str(s_slice).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `serde_json::from_str(s_slice).unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/specialized.rs:43:15
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let url = args.get(1).unwrap();
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/unspecialized.rs:30:15
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let url = args.get(1).unwrap();
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/common.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return r;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/specialized.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     return v;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/specialized.rs:43:15
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let url = args.get(1).unwrap();
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.63s
[INFO] running `"docker" "inspect" "240b717d0923d3b3ee297925c32f83a060afcc70d0f934db515e66cf39c5f3da"`
[INFO] running `"docker" "rm" "-f" "240b717d0923d3b3ee297925c32f83a060afcc70d0f934db515e66cf39c5f3da"`
[INFO] [stdout] 240b717d0923d3b3ee297925c32f83a060afcc70d0f934db515e66cf39c5f3da