[INFO] cloning repository https://github.com/brain0/pulseaudio-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brain0/pulseaudio-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrain0%2Fpulseaudio-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrain0%2Fpulseaudio-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2da6991ec9272f3c20bdc5cb6b8ec9f90434ed01
[INFO] linting brain0/pulseaudio-rs against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrain0%2Fpulseaudio-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/brain0/pulseaudio-rs
[INFO] finished tweaking git repo https://github.com/brain0/pulseaudio-rs
[INFO] tweaked toml for git repo https://github.com/brain0/pulseaudio-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brain0/pulseaudio-rs on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/brain0/pulseaudio-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Updating git repository `https://github.com/brain0/futures-rs.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.4.5
[INFO] [stderr]   Downloaded iovec v0.1.1
[INFO] [stderr]   Downloaded slab v0.4.0
[INFO] [stderr]   Downloaded byteorder v1.2.1
[INFO] [stderr]   Downloaded libpulse-sys v0.0.0
[INFO] [stderr]   Downloaded log v0.4.1
[INFO] [stderr]   Downloaded future_pubsub v0.1.3
[INFO] [stderr]   Downloaded tokio-io v0.1.4
[INFO] [stderr]   Downloaded net2 v0.2.31
[INFO] [stderr]   Downloaded tokio-core v0.1.11
[INFO] [stderr]   Downloaded mio v0.6.12
[INFO] [stderr]   Downloaded libc v0.2.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2919f9aa65b2151763296a5bda1ebfc724a4b840bcd06855fa1c4a30d518c99
[INFO] running `Command { std: "docker" "start" "-a" "b2919f9aa65b2151763296a5bda1ebfc724a4b840bcd06855fa1c4a30d518c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2919f9aa65b2151763296a5bda1ebfc724a4b840bcd06855fa1c4a30d518c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2919f9aa65b2151763296a5bda1ebfc724a4b840bcd06855fa1c4a30d518c99", kill_on_drop: false }`
[INFO] [stdout] b2919f9aa65b2151763296a5bda1ebfc724a4b840bcd06855fa1c4a30d518c99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93de1051026f9f937a410197bee4e539b33f82e7946563186768256813bb44be
[INFO] running `Command { std: "docker" "start" "-a" "93de1051026f9f937a410197bee4e539b33f82e7946563186768256813bb44be", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking futures v0.1.17 (https://github.com/brain0/futures-rs.git?branch=has_current#881b227f)
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking libpulse-sys v0.0.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.12
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking future_pubsub v0.1.3
[INFO] [stderr]     Checking tokio-core v0.1.11
[INFO] [stderr]     Checking pulseaudio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             userdata: userdata,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `userdata`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]    = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             reference: reference,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `reference`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tokio_mainloop_api/api_impl/completion_future.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Boxed(Box<Future<Item = (), Error = ()>>),
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Boxed(Box<dyn Future<Item = (), Error = ()>>),
[INFO] [stdout]   |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             userdata: userdata,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `userdata`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]    = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             reference: reference,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `reference`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tokio_mainloop_api/api_impl/completion_future.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Boxed(Box<Future<Item = (), Error = ()>>),
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Boxed(Box<dyn Future<Item = (), Error = ()>>),
[INFO] [stdout]   |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mainloop_api` is never read
[INFO] [stdout]   --> src/context/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct PaContext<M: PaMainLoopApi> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 22 |     raw: ExplicitCleanup<RefCounted<pa_context>>,
[INFO] [stdout] 23 |     mainloop_api: M,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PaContext` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: docs for unsafe trait missing `# Safety` section
[INFO] [stdout]  --> src/refcount.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub unsafe trait RefCountable {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_safety_doc
[INFO] [stdout]   = note: `#[warn(clippy::missing_safety_doc)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/refcount.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         assert!(ptr != null_mut());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: try: `!ptr.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout]    = note: `#[warn(clippy::cmp_null)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/context/state.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |     assert!(userdata != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: try: `!userdata.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/context/mod.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |             assert!(ptr != null_mut());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^ help: try: `!ptr.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/external_reference.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         assert!(ptr != null());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ help: try: `!ptr.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/external_reference.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |         f(&*parent)
[INFO] [stdout]    |           ^^^^^^^^ help: try: `&parent`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]    = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         mem::replace(&mut self.events, HashMap::new()).into_iter().for_each(|(_, v)| {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut self.events)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
[INFO] [stdout]    = note: `#[warn(clippy::mem_replace_with_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 f(&*d, deferred);
[INFO] [stdout]    |                   ^^^ help: try: `&d`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:79:23
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     f(&*d, deferred)
[INFO] [stdout]    |                       ^^^ help: try: `&d`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/deferred.rs:182:36
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...                   if ! events.insert(k,v).is_none() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `events.insert(k,v).is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a tuple pattern where every element takes a reference
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/deferred.rs:191:34
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout]     |                                  ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrowed_reference)]` on by default
[INFO] [stdout] help: try removing the `&` and `ref` parts
[INFO] [stdout]     |
[INFO] [stdout] 191 -                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout] 191 +                         .filter(|(_, v)| v.dead.get())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern creates a reference to a reference
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/deferred.rs:191:39
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout]     |                                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 191 -                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout] 191 +                         .filter(|&(_, v)| v.dead.get())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `()`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:60:34
[INFO] [stdout]    |
[INFO] [stdout] 60 |                           return ();
[INFO] [stdout]    |                                  ^^ help: remove the `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]    = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Self::add_to_existing_stream(&mut *data, index, events);
[INFO] [stdout]    |                                          ^^^^^^^^^^ help: try: `&mut data`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `()`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |             return ();
[INFO] [stdout]    |                    ^^ help: remove the `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |         if !self.parent.upgrade().is_some() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.parent.upgrade().is_none()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:135:32
[INFO] [stdout]     |
[INFO] [stdout] 135 |             Async::NotReady => return Async::NotReady,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 135 -             Async::NotReady => return Async::NotReady,
[INFO] [stdout] 135 +             Async::NotReady => Async::NotReady,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         mem::replace(&mut self.0, HashMap::new()).into_iter().for_each(|(_, v)| {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut self.0)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/mod.rs:90:39
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Self::call_destroy_cb(&*data, e);
[INFO] [stdout]    |                                       ^^^^^^ help: try: `&data`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/timer.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...                   if reference != null_mut() {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!reference.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Option::map`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/timer.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |           let cancel = if let Some(tv) = tv {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 89 | |             Some(Self::spawn_timeout_handler(data,
[INFO] [stdout] 90 | |                                              reference_ptr,
[INFO] [stdout] 91 | |                                              *tv))
[INFO] [stdout] 92 | |         } else {
[INFO] [stdout] 93 | |             None
[INFO] [stdout] 94 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
[INFO] [stdout]    = note: `#[warn(clippy::manual_map)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 88 ~         let cancel = tv.map(|tv| Self::spawn_timeout_handler(data,
[INFO] [stdout] 89 +                                              reference_ptr,
[INFO] [stdout] 90 ~                                              *tv));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take`
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/timer.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         mem::replace(&mut self.0, HashMap::new()).into_iter().for_each(|(_, v)| {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut self.0)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:77:22
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Deferred::launch(&*intern);
[INFO] [stdout]    |                      ^^^^^^^^ help: try: `&intern`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |     assert!(a != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: try: `!a.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     assert!((*a).userdata != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!(*a).userdata.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |     assert!(e != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     if ptr == null() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: try: `ptr.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mainloop_api` is never read
[INFO] [stdout]   --> src/context/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct PaContext<M: PaMainLoopApi> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 22 |     raw: ExplicitCleanup<RefCounted<pa_context>>,
[INFO] [stdout] 23 |     mainloop_api: M,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PaContext` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: docs for unsafe trait missing `# Safety` section
[INFO] [stdout]  --> src/refcount.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub unsafe trait RefCountable {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_safety_doc
[INFO] [stdout]   = note: `#[warn(clippy::missing_safety_doc)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/refcount.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         assert!(ptr != null_mut());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: try: `!ptr.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout]    = note: `#[warn(clippy::cmp_null)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/context/state.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |     assert!(userdata != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: try: `!userdata.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/context/mod.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |             assert!(ptr != null_mut());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^ help: try: `!ptr.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/external_reference.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         assert!(ptr != null());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ help: try: `!ptr.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/external_reference.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |         f(&*parent)
[INFO] [stdout]    |           ^^^^^^^^ help: try: `&parent`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]    = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         mem::replace(&mut self.events, HashMap::new()).into_iter().for_each(|(_, v)| {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut self.events)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
[INFO] [stdout]    = note: `#[warn(clippy::mem_replace_with_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 f(&*d, deferred);
[INFO] [stdout]    |                   ^^^ help: try: `&d`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/deferred.rs:79:23
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     f(&*d, deferred)
[INFO] [stdout]    |                       ^^^ help: try: `&d`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/deferred.rs:182:36
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...                   if ! events.insert(k,v).is_none() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `events.insert(k,v).is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a tuple pattern where every element takes a reference
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/deferred.rs:191:34
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout]     |                                  ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrowed_reference)]` on by default
[INFO] [stdout] help: try removing the `&` and `ref` parts
[INFO] [stdout]     |
[INFO] [stdout] 191 -                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout] 191 +                         .filter(|(_, v)| v.dead.get())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern creates a reference to a reference
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/deferred.rs:191:39
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout]     |                                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 191 -                         .filter(|&(_, ref v)| v.dead.get())
[INFO] [stdout] 191 +                         .filter(|&(_, v)| v.dead.get())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `()`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:60:34
[INFO] [stdout]    |
[INFO] [stdout] 60 |                           return ();
[INFO] [stdout]    |                                  ^^ help: remove the `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]    = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Self::add_to_existing_stream(&mut *data, index, events);
[INFO] [stdout]    |                                          ^^^^^^^^^^ help: try: `&mut data`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `()`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |             return ();
[INFO] [stdout]    |                    ^^ help: remove the `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |         if !self.parent.upgrade().is_some() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.parent.upgrade().is_none()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/io/io_event_stream/mod.rs:135:32
[INFO] [stdout]     |
[INFO] [stdout] 135 |             Async::NotReady => return Async::NotReady,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 135 -             Async::NotReady => return Async::NotReady,
[INFO] [stdout] 135 +             Async::NotReady => Async::NotReady,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         mem::replace(&mut self.0, HashMap::new()).into_iter().for_each(|(_, v)| {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut self.0)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/io/mod.rs:90:39
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Self::call_destroy_cb(&*data, e);
[INFO] [stdout]    |                                       ^^^^^^ help: try: `&data`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/timer.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...                   if reference != null_mut() {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!reference.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Option::map`
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/timer.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |           let cancel = if let Some(tv) = tv {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 89 | |             Some(Self::spawn_timeout_handler(data,
[INFO] [stdout] 90 | |                                              reference_ptr,
[INFO] [stdout] 91 | |                                              *tv))
[INFO] [stdout] 92 | |         } else {
[INFO] [stdout] 93 | |             None
[INFO] [stdout] 94 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
[INFO] [stdout]    = note: `#[warn(clippy::manual_map)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 88 ~         let cancel = tv.map(|tv| Self::spawn_timeout_handler(data,
[INFO] [stdout] 89 +                                              reference_ptr,
[INFO] [stdout] 90 ~                                              *tv));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take`
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/timer.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         mem::replace(&mut self.0, HashMap::new()).into_iter().for_each(|(_, v)| {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut self.0)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:77:22
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Deferred::launch(&*intern);
[INFO] [stdout]    |                      ^^^^^^^^ help: try: `&intern`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |     assert!(a != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: try: `!a.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     assert!((*a).userdata != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!(*a).userdata.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]   --> src/tokio_mainloop_api/api_impl/mod.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |     assert!(e != null_mut());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     assert!(e != null_mut());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: try: `!e.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparing with null is better expressed by the `.is_null()` method
[INFO] [stdout]    --> src/tokio_mainloop_api/api_impl/mod.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     if ptr == null() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: try: `ptr.is_null()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.49s
[INFO] running `Command { std: "docker" "inspect" "93de1051026f9f937a410197bee4e539b33f82e7946563186768256813bb44be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93de1051026f9f937a410197bee4e539b33f82e7946563186768256813bb44be", kill_on_drop: false }`
[INFO] [stdout] 93de1051026f9f937a410197bee4e539b33f82e7946563186768256813bb44be