[INFO] crate r2d2-mongodb 0.2.0 is already in cache
[INFO] extracting crate r2d2-mongodb 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/r2d2-mongodb/0.2.0
[INFO] extracting crate r2d2-mongodb 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/r2d2-mongodb/0.2.0
[INFO] validating manifest of r2d2-mongodb-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 r2d2-mongodb-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 r2d2-mongodb-0.2.0
[INFO] finished frobbing r2d2-mongodb-0.2.0
[INFO] frobbed toml for r2d2-mongodb-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/r2d2-mongodb/0.2.0/Cargo.toml
[INFO] started frobbing r2d2-mongodb-0.2.0
[INFO] finished frobbing r2d2-mongodb-0.2.0
[INFO] frobbed toml for r2d2-mongodb-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/r2d2-mongodb/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 r2d2-mongodb-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-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/r2d2-mongodb/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] 66faebb406ef9e60a246aec8c98f6eb982d6031803f55a45c4374630a89ff181
[INFO] running `"docker" "start" "-a" "66faebb406ef9e60a246aec8c98f6eb982d6031803f55a45c4374630a89ff181"`
[INFO] [stderr]     Checking serde_json v1.0.37
[INFO] [stderr]     Checking textnonce v0.6.4
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking bson v0.13.0
[INFO] [stderr]     Checking mongodb v0.3.12
[INFO] [stderr]     Checking r2d2-mongodb v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ConnectionOptionsBuilder`
[INFO] [stderr]    --> src/lib.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 | /     pub fn new() -> ConnectionOptionsBuilder {
[INFO] [stderr] 103 | |         ConnectionOptionsBuilder(ConnectionOptions::default())
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 99  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/lib.rs:172:14
[INFO] [stderr]     |
[INFO] [stderr] 172 |             .ok_or(Error::ArgumentError("No host provided".into()))?;
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| Error::ArgumentError("No host provided".into()))`
[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: you should consider deriving a `Default` implementation for `ConnectionOptionsBuilder`
[INFO] [stderr]    --> src/lib.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 | /     pub fn new() -> ConnectionOptionsBuilder {
[INFO] [stderr] 103 | |         ConnectionOptionsBuilder(ConnectionOptions::default())
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 99  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/lib.rs:172:14
[INFO] [stderr]     |
[INFO] [stderr] 172 |             .ok_or(Error::ArgumentError("No host provided".into()))?;
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| Error::ArgumentError("No host provided".into()))`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 18.42s
[INFO] running `"docker" "inspect" "66faebb406ef9e60a246aec8c98f6eb982d6031803f55a45c4374630a89ff181"`
[INFO] running `"docker" "rm" "-f" "66faebb406ef9e60a246aec8c98f6eb982d6031803f55a45c4374630a89ff181"`
[INFO] [stdout] 66faebb406ef9e60a246aec8c98f6eb982d6031803f55a45c4374630a89ff181