[INFO] fetching crate gain 0.5.0...
[INFO] checking gain-0.5.0 against master#2a023bf80a6fbd6a06d5460a34eb247b986286ed for pr-143764
[INFO] extracting crate gain 0.5.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate gain 0.5.0
[INFO] finished tweaking crates.io crate gain 0.5.0
[INFO] tweaked toml for crates.io crate gain 0.5.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gain 0.5.0 on toolchain 2a023bf80a6fbd6a06d5460a34eb247b986286ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding async-task v1.3.1 (available: v4.7.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c47bfdff91ea5647d8bab27d8640d9683088e3c9a144d1662e757bb5a47249d
[INFO] running `Command { std: "docker" "start" "-a" "0c47bfdff91ea5647d8bab27d8640d9683088e3c9a144d1662e757bb5a47249d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c47bfdff91ea5647d8bab27d8640d9683088e3c9a144d1662e757bb5a47249d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c47bfdff91ea5647d8bab27d8640d9683088e3c9a144d1662e757bb5a47249d", kill_on_drop: false }`
[INFO] [stdout] 0c47bfdff91ea5647d8bab27d8640d9683088e3c9a144d1662e757bb5a47249d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 071d32c7fcb20a94aa6cbe3371356c6352fd7282dc516bdc6ad8db3564fb18a6
[INFO] running `Command { std: "docker" "start" "-a" "071d32c7fcb20a94aa6cbe3371356c6352fd7282dc516bdc6ad8db3564fb18a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking gain v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:315:13
[INFO] [stdout]     |
[INFO] [stdout] 315 |         let mut prev_share = prev.as_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]    |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write;
[INFO] [stdout]    |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                   |                   |
[INFO] [stdout]    |                   |                   these lifetimes flow to the output
[INFO] [stdout]    |                   these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a>;
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write;
[INFO] [stdout]    |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                        |                   |
[INFO] [stdout]    |                        |                   these lifetimes flow to the output
[INFO] [stdout]    |                        these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a>;
[INFO] [stdout]    |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll;
[INFO] [stdout]    |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                       |                   |
[INFO] [stdout]    |                       |                   these lifetimes flow to the output
[INFO] [stdout]    |                       these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a>;
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]    |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write {
[INFO] [stdout]     |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:105:24
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:109:23
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:167:16
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]     |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:209:16
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]     |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:257:19
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write {
[INFO] [stdout]     |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:261:24
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:265:23
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:304:19
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write {
[INFO] [stdout]     |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:308:24
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:312:23
[INFO] [stdout]     |
[INFO] [stdout] 312 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 312 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/buf.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read;
[INFO] [stdout]    |                  ^^                  ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                  |                   |
[INFO] [stdout]    |                  |                   these lifetimes flow to the output
[INFO] [stdout]    |                  these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read<'a>;
[INFO] [stdout]    |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:242:18
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read {
[INFO] [stdout]     |                  ^^                  ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   these lifetimes flow to the output
[INFO] [stdout]     |                  these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read<'a> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read {
[INFO] [stdout]     |                  ^^                  ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   these lifetimes flow to the output
[INFO] [stdout]     |                  these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read<'a> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:325:19
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> super::future::Write {
[INFO] [stdout]     |                   ^^                  ^^          -------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> super::future::Write<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:329:24
[INFO] [stdout]     |
[INFO] [stdout] 329 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> super::future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     -------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 329 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> super::future::Write<'a> {
[INFO] [stdout]     |                                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:333:23
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> super::future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ----------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> super::future::WriteAll<'a> {
[INFO] [stdout]     |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/threadunsafe.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stdout]    |                   ^^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/threadunsafe.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn borrow_mut(&self) -> RefMut<T> {
[INFO] [stdout]    |                       ^^^^^     --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn borrow_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:315:13
[INFO] [stdout]     |
[INFO] [stdout] 315 |         let mut prev_share = prev.as_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]    |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write;
[INFO] [stdout]    |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                   |                   |
[INFO] [stdout]    |                   |                   these lifetimes flow to the output
[INFO] [stdout]    |                   these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a>;
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write;
[INFO] [stdout]    |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                        |                   |
[INFO] [stdout]    |                        |                   these lifetimes flow to the output
[INFO] [stdout]    |                        these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a>;
[INFO] [stdout]    |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll;
[INFO] [stdout]    |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                       |                   |
[INFO] [stdout]    |                       |                   these lifetimes flow to the output
[INFO] [stdout]    |                       these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a>;
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/mod.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]    |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write {
[INFO] [stdout]     |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:105:24
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:109:23
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:167:16
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]     |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:209:16
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<R>
[INFO] [stdout]     |                ^^^^^^^^^ this lifetime flows to the output --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn recv<R>(&mut self, capacity: usize, receptor: R) -> future::Recv<'_, R>
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:257:19
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write {
[INFO] [stdout]     |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:261:24
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:265:23
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:304:19
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write {
[INFO] [stdout]     |                   ^^                  ^^          ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write<'a> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:308:24
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     ------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write<'a> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/mod.rs:312:23
[INFO] [stdout]     |
[INFO] [stdout] 312 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ---------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 312 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/stream/buf.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read;
[INFO] [stdout]    |                  ^^                  ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                  |                   |
[INFO] [stdout]    |                  |                   these lifetimes flow to the output
[INFO] [stdout]    |                  these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read<'a>;
[INFO] [stdout]    |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:242:18
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read {
[INFO] [stdout]     |                  ^^                  ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   these lifetimes flow to the output
[INFO] [stdout]     |                  these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read<'a> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read {
[INFO] [stdout]     |                  ^^                  ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]     |                  |                   |
[INFO] [stdout]     |                  |                   these lifetimes flow to the output
[INFO] [stdout]     |                  these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read<'a> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:325:19
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> super::future::Write {
[INFO] [stdout]     |                   ^^                  ^^          -------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |                   |
[INFO] [stdout]     |                   |                   these lifetimes flow to the output
[INFO] [stdout]     |                   these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn write<'a>(&'a mut self, data: &'a [u8]) -> super::future::Write<'a> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:329:24
[INFO] [stdout]     |
[INFO] [stdout] 329 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> super::future::Write {
[INFO] [stdout]     |                        ^^                  ^^                     -------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                        |                   |
[INFO] [stdout]     |                        |                   these lifetimes flow to the output
[INFO] [stdout]     |                        these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 329 |     fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> super::future::Write<'a> {
[INFO] [stdout]     |                                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/stream/buf.rs:333:23
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> super::future::WriteAll {
[INFO] [stdout]     |                       ^^                  ^^          ----------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |                   |
[INFO] [stdout]     |                       |                   these lifetimes flow to the output
[INFO] [stdout]     |                       these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn write_all<'a>(&'a mut self, data: &'a [u8]) -> super::future::WriteAll<'a> {
[INFO] [stdout]     |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/threadunsafe.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stdout]    |                   ^^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/threadunsafe.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn borrow_mut(&self) -> RefMut<T> {
[INFO] [stdout]    |                       ^^^^^     --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn borrow_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "071d32c7fcb20a94aa6cbe3371356c6352fd7282dc516bdc6ad8db3564fb18a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071d32c7fcb20a94aa6cbe3371356c6352fd7282dc516bdc6ad8db3564fb18a6", kill_on_drop: false }`
[INFO] [stdout] 071d32c7fcb20a94aa6cbe3371356c6352fd7282dc516bdc6ad8db3564fb18a6
