[INFO] crate quinn 0.1.0 is already in cache [INFO] extracting crate quinn 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/quinn/0.1.0 [INFO] extracting crate quinn 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/quinn/0.1.0 [INFO] validating manifest of quinn-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 quinn-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 quinn-0.1.0 [INFO] finished frobbing quinn-0.1.0 [INFO] frobbed toml for quinn-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/quinn/0.1.0/Cargo.toml [INFO] started frobbing quinn-0.1.0 [INFO] finished frobbing quinn-0.1.0 [INFO] frobbed toml for quinn-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/quinn/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 quinn-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-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/quinn/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] b413cff3f16aed5dc83f3b6222e38eacd903fd1ee0ca181c37dacd4ca31405d3 [INFO] running `"docker" "start" "-a" "b413cff3f16aed5dc83f3b6222e38eacd903fd1ee0ca181c37dacd4ca31405d3"` [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking sct v0.4.0 [INFO] [stderr] Checking webpki-roots v0.15.0 [INFO] [stderr] Checking rustls v0.14.0 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking quinn-proto v0.1.0 [INFO] [stderr] Checking tokio-fs v0.1.5 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking quinn v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/lib.rs:316:13 [INFO] [stderr] | [INFO] [stderr] 316 | socket: socket, [INFO] [stderr] | ^^^^^^^^^^^^^^ help: replace it with: `socket` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/lib.rs:316:13 [INFO] [stderr] | [INFO] [stderr] 316 | socket: socket, [INFO] [stderr] | ^^^^^^^^^^^^^^ help: replace it with: `socket` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'tokio_reactor::Handle::current': semantics were sometimes surprising, use Handle::default() [INFO] [stderr] --> src/lib.rs:310:24 [INFO] [stderr] | [INFO] [stderr] 310 | Cow::Owned(tokio_reactor::Handle::current()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure [INFO] [stderr] --> src/lib.rs:150:9 [INFO] [stderr] | [INFO] [stderr] 150 | self.driver.as_ref().map(|x| x.notify()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- [INFO] [stderr] | | [INFO] [stderr] | help: try this: `if let Some(x) = self.driver.as_ref() { x.notify() }` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::option_map_unit_fn)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn [INFO] [stderr] [INFO] [stderr] warning: useless use of `vec!` [INFO] [stderr] --> src/lib.rs:298:74 [INFO] [stderr] | [INFO] [stderr] 298 | .add_server_trust_anchors(&webpki::TLSServerTrustAnchors(&vec![anchor])); [INFO] [stderr] | ^^^^^^^^^^^^^ help: you can use a slice directly: `&[anchor]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::useless_vec)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec [INFO] [stderr] [INFO] [stderr] warning: methods called `from_*` usually take no self; consider choosing a less ambiguous name [INFO] [stderr] --> src/lib.rs:304:9 [INFO] [stderr] | [INFO] [stderr] 304 | self, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::wrong_self_convention)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention [INFO] [stderr] [INFO] [stderr] warning: methods called `new` usually return `Self` [INFO] [stderr] --> src/lib.rs:342:5 [INFO] [stderr] | [INFO] [stderr] 342 | / pub fn new<'a>() -> EndpointBuilder<'a> { [INFO] [stderr] 343 | | EndpointBuilder { [INFO] [stderr] 344 | | reactor: None, [INFO] [stderr] 345 | | logger: Logger::root(slog::Discard, o!()), [INFO] [stderr] ... | [INFO] [stderr] 348 | | } [INFO] [stderr] 349 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_ret_no_self)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self [INFO] [stderr] [INFO] [stderr] warning: the function has a cyclomatic complexity of 30 [INFO] [stderr] --> src/lib.rs:481:5 [INFO] [stderr] | [INFO] [stderr] 481 | / fn poll(&mut self) -> Poll { [INFO] [stderr] 482 | | let mut buf = [0; 64 * 1024]; [INFO] [stderr] 483 | | let endpoint = &mut *self.0.borrow_mut(); [INFO] [stderr] 484 | | if endpoint.driver.is_none() { [INFO] [stderr] ... | [INFO] [stderr] 730 | | Ok(Async::NotReady) [INFO] [stderr] 731 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cyclomatic_complexity)] on by default [INFO] [stderr] = help: you could split it up into multiple smaller functions [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity [INFO] [stderr] [INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure [INFO] [stderr] --> src/lib.rs:693:37 [INFO] [stderr] | [INFO] [stderr] 693 | pending.cancel_loss_detect.take().map(|x| { [INFO] [stderr] | _____________________________________^ [INFO] [stderr] | |_____________________________________| [INFO] [stderr] | || [INFO] [stderr] 694 | || let _ = x.send(()); [INFO] [stderr] 695 | || }); [INFO] [stderr] | ||______________________________________^- help: try this: `if let Some(x) = pending.cancel_loss_detect.take() { let _ = x.send(()); }` [INFO] [stderr] | |_______________________________________| [INFO] [stderr] | [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/lib.rs:738:33 [INFO] [stderr] | [INFO] [stderr] 738 | x.as_secs() * 1000 * 1000 + (x.subsec_nanos() / 1000) as u64 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(x.subsec_nanos() / 1000)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: Calling `subsec_micros()` is more concise than this calculation [INFO] [stderr] --> src/lib.rs:738:33 [INFO] [stderr] | [INFO] [stderr] 738 | x.as_secs() * 1000 * 1000 + (x.subsec_nanos() / 1000) as u64 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `x.subsec_micros()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::duration_subsec)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#duration_subsec [INFO] [stderr] [INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure [INFO] [stderr] --> src/lib.rs:893:17 [INFO] [stderr] | [INFO] [stderr] 893 | endpoint.driver.as_ref().map(|x| x.notify()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- [INFO] [stderr] | | [INFO] [stderr] | help: try this: `if let Some(x) = endpoint.driver.as_ref() { x.notify() }` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> examples/interop.rs:172:5 [INFO] [stderr] | [INFO] [stderr] 172 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::println_empty_string)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'tokio_reactor::Handle::current': semantics were sometimes surprising, use Handle::default() [INFO] [stderr] --> src/lib.rs:310:24 [INFO] [stderr] | [INFO] [stderr] 310 | Cow::Owned(tokio_reactor::Handle::current()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure [INFO] [stderr] --> src/lib.rs:150:9 [INFO] [stderr] | [INFO] [stderr] 150 | self.driver.as_ref().map(|x| x.notify()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- [INFO] [stderr] | | [INFO] [stderr] | help: try this: `if let Some(x) = self.driver.as_ref() { x.notify() }` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::option_map_unit_fn)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn [INFO] [stderr] [INFO] [stderr] warning: useless use of `vec!` [INFO] [stderr] --> src/lib.rs:298:74 [INFO] [stderr] | [INFO] [stderr] 298 | .add_server_trust_anchors(&webpki::TLSServerTrustAnchors(&vec![anchor])); [INFO] [stderr] | ^^^^^^^^^^^^^ help: you can use a slice directly: `&[anchor]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::useless_vec)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec [INFO] [stderr] [INFO] [stderr] warning: methods called `from_*` usually take no self; consider choosing a less ambiguous name [INFO] [stderr] --> src/lib.rs:304:9 [INFO] [stderr] | [INFO] [stderr] 304 | self, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::wrong_self_convention)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention [INFO] [stderr] [INFO] [stderr] warning: methods called `new` usually return `Self` [INFO] [stderr] --> src/lib.rs:342:5 [INFO] [stderr] | [INFO] [stderr] 342 | / pub fn new<'a>() -> EndpointBuilder<'a> { [INFO] [stderr] 343 | | EndpointBuilder { [INFO] [stderr] 344 | | reactor: None, [INFO] [stderr] 345 | | logger: Logger::root(slog::Discard, o!()), [INFO] [stderr] ... | [INFO] [stderr] 348 | | } [INFO] [stderr] 349 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_ret_no_self)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self [INFO] [stderr] [INFO] [stderr] warning: the function has a cyclomatic complexity of 30 [INFO] [stderr] --> src/lib.rs:481:5 [INFO] [stderr] | [INFO] [stderr] 481 | / fn poll(&mut self) -> Poll { [INFO] [stderr] 482 | | let mut buf = [0; 64 * 1024]; [INFO] [stderr] 483 | | let endpoint = &mut *self.0.borrow_mut(); [INFO] [stderr] 484 | | if endpoint.driver.is_none() { [INFO] [stderr] ... | [INFO] [stderr] 730 | | Ok(Async::NotReady) [INFO] [stderr] 731 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cyclomatic_complexity)] on by default [INFO] [stderr] = help: you could split it up into multiple smaller functions [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity [INFO] [stderr] [INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure [INFO] [stderr] --> src/lib.rs:693:37 [INFO] [stderr] | [INFO] [stderr] 693 | pending.cancel_loss_detect.take().map(|x| { [INFO] [stderr] | _____________________________________^ [INFO] [stderr] | |_____________________________________| [INFO] [stderr] | || [INFO] [stderr] 694 | || let _ = x.send(()); [INFO] [stderr] 695 | || }); [INFO] [stderr] | ||______________________________________^- help: try this: `if let Some(x) = pending.cancel_loss_detect.take() { let _ = x.send(()); }` [INFO] [stderr] | |_______________________________________| [INFO] [stderr] | [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/lib.rs:738:33 [INFO] [stderr] | [INFO] [stderr] 738 | x.as_secs() * 1000 * 1000 + (x.subsec_nanos() / 1000) as u64 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(x.subsec_nanos() / 1000)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: Calling `subsec_micros()` is more concise than this calculation [INFO] [stderr] --> src/lib.rs:738:33 [INFO] [stderr] | [INFO] [stderr] 738 | x.as_secs() * 1000 * 1000 + (x.subsec_nanos() / 1000) as u64 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `x.subsec_micros()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::duration_subsec)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#duration_subsec [INFO] [stderr] [INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure [INFO] [stderr] --> src/lib.rs:893:17 [INFO] [stderr] | [INFO] [stderr] 893 | endpoint.driver.as_ref().map(|x| x.notify()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- [INFO] [stderr] | | [INFO] [stderr] | help: try this: `if let Some(x) = endpoint.driver.as_ref() { x.notify() }` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> examples/client.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> examples/interop.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> examples/server.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of `ok_or` followed by a function call [INFO] [stderr] --> examples/client.rs:76:10 [INFO] [stderr] | [INFO] [stderr] 76 | .ok_or(format_err!("couldn't resolve to an address"))?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| format_err!("couldn't resolve to an address"))` [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: use of `ok_or` followed by a function call [INFO] [stderr] --> examples/client.rs:112:32 [INFO] [stderr] | [INFO] [stderr] 112 | url.host_str().ok_or(format_err!("URL missing host"))?, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| format_err!("URL missing host"))` [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: use of `ok_or` followed by a function call [INFO] [stderr] --> examples/interop.rs:58:10 [INFO] [stderr] | [INFO] [stderr] 58 | .ok_or(format_err!("couldn't resolve to an address"))?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| format_err!("couldn't resolve to an address"))` [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: redundant closure found [INFO] [stderr] --> examples/interop.rs:86:31 [INFO] [stderr] | [INFO] [stderr] 86 | .and_then(move |stream| get(stream)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `get` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_closure)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure [INFO] [stderr] [INFO] [stderr] warning: use of `ok_or` followed by a function call [INFO] [stderr] --> examples/interop.rs:115:14 [INFO] [stderr] | [INFO] [stderr] 115 | .ok_or(format_err!("couldn't resolve to an address"))?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| format_err!("couldn't resolve to an address"))` [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 27.82s [INFO] running `"docker" "inspect" "b413cff3f16aed5dc83f3b6222e38eacd903fd1ee0ca181c37dacd4ca31405d3"` [INFO] running `"docker" "rm" "-f" "b413cff3f16aed5dc83f3b6222e38eacd903fd1ee0ca181c37dacd4ca31405d3"` [INFO] [stdout] b413cff3f16aed5dc83f3b6222e38eacd903fd1ee0ca181c37dacd4ca31405d3