[INFO] crate mackerel_client 0.2.0 is already in cache
[INFO] extracting crate mackerel_client 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/mackerel_client/0.2.0
[INFO] extracting crate mackerel_client 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mackerel_client/0.2.0
[INFO] validating manifest of mackerel_client-0.2.0 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 mackerel_client-0.2.0 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 mackerel_client-0.2.0
[INFO] finished frobbing mackerel_client-0.2.0
[INFO] frobbed toml for mackerel_client-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/mackerel_client/0.2.0/Cargo.toml
[INFO] started frobbing mackerel_client-0.2.0
[INFO] finished frobbing mackerel_client-0.2.0
[INFO] frobbed toml for mackerel_client-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mackerel_client/0.2.0/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 mackerel_client-0.2.0 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/mackerel_client/0.2.0:/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] ea76e02309b794240f08a4a0226b5a54191c6c4fc6a1cfdcf2e9dabe19afe09b
[INFO] running `"docker" "start" "-a" "ea76e02309b794240f08a4a0226b5a54191c6c4fc6a1cfdcf2e9dabe19afe09b"`
[INFO] [stderr]     Checking mackerel_client v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/graph_annotation.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 |             from: 1484000000,
[INFO] [stderr]    |                   ^^^^^^^^^^ help: consider: `1_484_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/graph_annotation.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |             to: 1484000030,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider: `1_484_000_030`
[INFO] [stderr]    |
[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/graph_annotation.rs:39:21
[INFO] [stderr]    |
[INFO] [stderr] 39 |             "from": 1484000000,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: consider: `1_484_000_000`
[INFO] [stderr]    |
[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/graph_annotation.rs:40:19
[INFO] [stderr]    |
[INFO] [stderr] 40 |             "to": 1484000030,
[INFO] [stderr]    |                   ^^^^^^^^^^ help: consider: `1_484_000_030`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/client.rs:97:58
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let client = reqwest::Client::new().chain_err(|| format!("failed to create a client"))?;
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"failed to create a client".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/client.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |             .unwrap_or(vec![]);
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| vec![])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/client.rs:111:27
[INFO] [stderr]     |
[INFO] [stderr] 111 |             .chain_err(|| format!("JSON deserialization failed"))
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"JSON deserialization failed".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/client.rs:124:49
[INFO] [stderr]     |
[INFO] [stderr] 124 |         ErrorKind::ApiError(status, message_opt.unwrap_or("".to_string()))
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_string())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/client.rs:97:58
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let client = reqwest::Client::new().chain_err(|| format!("failed to create a client"))?;
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"failed to create a client".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/client.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |             .unwrap_or(vec![]);
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| vec![])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/client.rs:111:27
[INFO] [stderr]     |
[INFO] [stderr] 111 |             .chain_err(|| format!("JSON deserialization failed"))
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"JSON deserialization failed".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/client.rs:124:49
[INFO] [stderr]     |
[INFO] [stderr] 124 |         ErrorKind::ApiError(status, message_opt.unwrap_or("".to_string()))
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_string())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.38s
[INFO] running `"docker" "inspect" "ea76e02309b794240f08a4a0226b5a54191c6c4fc6a1cfdcf2e9dabe19afe09b"`
[INFO] running `"docker" "rm" "-f" "ea76e02309b794240f08a4a0226b5a54191c6c4fc6a1cfdcf2e9dabe19afe09b"`
[INFO] [stdout] ea76e02309b794240f08a4a0226b5a54191c6c4fc6a1cfdcf2e9dabe19afe09b