[INFO] fetching crate mfio-rt 0.1.0...
[INFO] checking mfio-rt-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mfio-rt 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mfio-rt 0.1.0
[INFO] finished tweaking crates.io crate mfio-rt 0.1.0
[INFO] tweaked toml for crates.io crate mfio-rt 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mfio-rt 0.1.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 252 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
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[INFO] [stderr]       Adding windows v0.51.1 (available: v0.62.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19aa4997e9232cc5d62f3f42fa88d83985dec855d4007085ea3cb927c2c56c4c
[INFO] running `Command { std: "docker" "start" "-a" "19aa4997e9232cc5d62f3f42fa88d83985dec855d4007085ea3cb927c2c56c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19aa4997e9232cc5d62f3f42fa88d83985dec855d4007085ea3cb927c2c56c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19aa4997e9232cc5d62f3f42fa88d83985dec855d4007085ea3cb927c2c56c4c", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "6f64c5e14b3c618cf8622f18c54da956f6c89062aff61afbef0dd0c69361e73f", kill_on_drop: false }`
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[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/native/mod.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |                       if let Ok(v) = impls::$mod::Runtime::try_new() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verify_sync` is never used
[INFO] [stdout]    --> src/native/mod.rs:341:14
[INFO] [stdout]     |
[INFO] [stdout] 341 |     const fn verify_sync<T: Sync>() {}
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/native/impls/io_uring/mod.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 |     FileWrite(AllocedOrTransferred<RdPerm>, RawBox),
[INFO] [stdout]    |     --------- field in this variant         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 -     FileWrite(AllocedOrTransferred<RdPerm>, RawBox),
[INFO] [stdout] 46 +     FileWrite(AllocedOrTransferred<RdPerm>, ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `diff_paths` is never used
[INFO] [stdout]   --> src/util.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn diff_paths<P, B>(path: P, base: B) -> Option<PathBuf>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `static_conv_ref` is never used
[INFO] [stdout]   --> src/util/stream.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait StaticConv {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 22 |     unsafe fn static_conv_ref<'a, 'b>(inp: &'b Self::This<'static>) -> &'b Self::This<'a> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:80:31
[INFO] [stdout]     |
[INFO] [stdout]  80 |               fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                                 ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout]  80 |             fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:86:28
[INFO] [stdout]     |
[INFO] [stdout]  86 |               fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout]  86 |             fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/mod.rs:154:36
[INFO] [stdout]     |
[INFO] [stdout] 154 |                       if let Ok(v) = impls::$mod::Runtime::try_new() {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/mod.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |                           impls::$mod::Runtime::try_new()
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:447:23
[INFO] [stdout]     |
[INFO] [stdout] 447 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 447 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:451:20
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/impls/thread.rs:445:64
[INFO] [stdout]     |
[INFO] [stdout] 445 |       pub fn try_new() -> Result<Self, std::convert::Infallible> {
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 446 | |         Ok(Self {
[INFO] [stdout] 447 | |             backend: BackendContainer::new_dyn(pending()),
[INFO] [stdout] 448 | |             file_store: Default::default(),
[INFO] [stdout] 449 | |             tcp_store: Default::default(),
[INFO] [stdout] 450 | |         })
[INFO] [stdout] 451 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/impls/thread.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 | /         Ok(Self {
[INFO] [stdout] 447 | |             backend: BackendContainer::new_dyn(pending()),
[INFO] [stdout] 448 | |             file_store: Default::default(),
[INFO] [stdout] 449 | |             tcp_store: Default::default(),
[INFO] [stdout] 450 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/thread.rs:463:23
[INFO] [stdout]     |
[INFO] [stdout] 463 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 463 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/thread.rs:467:20
[INFO] [stdout]     |
[INFO] [stdout] 467 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 467 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/io_uring/mod.rs:266:20
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn push_handle(&mut self) -> IoUringPushHandle {
[INFO] [stdout]     |                    ^^^^^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn push_handle(&mut self) -> IoUringPushHandle<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/io_uring/mod.rs:628:23
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/io_uring/mod.rs:638:20
[INFO] [stdout]     |
[INFO] [stdout] 638 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 638 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/mio/mod.rs:301:23
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/mio/mod.rs:311:20
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/util/stream.rs:627:24
[INFO] [stdout]     |
[INFO] [stdout] 627 |     pub fn write_queue(&mut self) -> &[IoSlice] {
[INFO] [stdout]     |                        ^^^^^^^^^     ^^^^^^^^^^
[INFO] [stdout]     |                        |             | |
[INFO] [stdout]     |                        |             | the same lifetime is hidden here
[INFO] [stdout]     |                        |             the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 627 |     pub fn write_queue(&mut self) -> &[IoSlice<'_>] {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/virt/mod.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn read(&self) -> Ref<T> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn read(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/virt/mod.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn write(&self) -> RefMut<T> {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn write(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/virt/mod.rs:100:23
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/virt/mod.rs:104:20
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mfio-rt` (lib) due to 4 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/native/mod.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |                       if let Ok(v) = impls::$mod::Runtime::try_new() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verify_sync` is never used
[INFO] [stdout]    --> src/native/mod.rs:341:14
[INFO] [stdout]     |
[INFO] [stdout] 341 |     const fn verify_sync<T: Sync>() {}
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/native/impls/io_uring/mod.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 |     FileWrite(AllocedOrTransferred<RdPerm>, RawBox),
[INFO] [stdout]    |     --------- field in this variant         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 -     FileWrite(AllocedOrTransferred<RdPerm>, RawBox),
[INFO] [stdout] 46 +     FileWrite(AllocedOrTransferred<RdPerm>, ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `static_conv_ref` is never used
[INFO] [stdout]   --> src/util/stream.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait StaticConv {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 22 |     unsafe fn static_conv_ref<'a, 'b>(inp: &'b Self::This<'static>) -> &'b Self::This<'a> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:80:31
[INFO] [stdout]     |
[INFO] [stdout]  80 |               fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                                 ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout]  80 |             fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:86:28
[INFO] [stdout]     |
[INFO] [stdout]  86 |               fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout]  86 |             fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/mod.rs:154:36
[INFO] [stdout]     |
[INFO] [stdout] 154 |                       if let Ok(v) = impls::$mod::Runtime::try_new() {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/mod.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |                           impls::$mod::Runtime::try_new()
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 | / fs_dispatch! {
[INFO] [stdout] 330 | |     #[cfg(all(not(miri), target_os = "linux", feature = "io-uring"))]
[INFO] [stdout] 331 | |     IoUring => io_uring,
[INFO] [stdout] 332 | |     #[cfg(all(not(miri), target_os = "windows", feature = "iocp"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 336 | |     Default => thread,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `fs_dispatch` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:447:23
[INFO] [stdout]     |
[INFO] [stdout] 447 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 447 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/mod.rs:451:20
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/impls/thread.rs:445:64
[INFO] [stdout]     |
[INFO] [stdout] 445 |       pub fn try_new() -> Result<Self, std::convert::Infallible> {
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 446 | |         Ok(Self {
[INFO] [stdout] 447 | |             backend: BackendContainer::new_dyn(pending()),
[INFO] [stdout] 448 | |             file_store: Default::default(),
[INFO] [stdout] 449 | |             tcp_store: Default::default(),
[INFO] [stdout] 450 | |         })
[INFO] [stdout] 451 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<impls::thread::Runtime, Infallible>
[INFO] [stdout]    --> src/native/impls/thread.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 | /         Ok(Self {
[INFO] [stdout] 447 | |             backend: BackendContainer::new_dyn(pending()),
[INFO] [stdout] 448 | |             file_store: Default::default(),
[INFO] [stdout] 449 | |             tcp_store: Default::default(),
[INFO] [stdout] 450 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/thread.rs:463:23
[INFO] [stdout]     |
[INFO] [stdout] 463 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 463 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/thread.rs:467:20
[INFO] [stdout]     |
[INFO] [stdout] 467 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 467 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/io_uring/mod.rs:266:20
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn push_handle(&mut self) -> IoUringPushHandle {
[INFO] [stdout]     |                    ^^^^^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn push_handle(&mut self) -> IoUringPushHandle<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/io_uring/mod.rs:628:23
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/io_uring/mod.rs:638:20
[INFO] [stdout]     |
[INFO] [stdout] 638 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 638 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/mio/mod.rs:301:23
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/native/impls/mio/mod.rs:311:20
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/util/stream.rs:627:24
[INFO] [stdout]     |
[INFO] [stdout] 627 |     pub fn write_queue(&mut self) -> &[IoSlice] {
[INFO] [stdout]     |                        ^^^^^^^^^     ^^^^^^^^^^
[INFO] [stdout]     |                        |             | |
[INFO] [stdout]     |                        |             | the same lifetime is hidden here
[INFO] [stdout]     |                        |             the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 627 |     pub fn write_queue(&mut self) -> &[IoSlice<'_>] {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/virt/mod.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn read(&self) -> Ref<T> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn read(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/virt/mod.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn write(&self) -> RefMut<T> {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn write(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/virt/mod.rs:100:23
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stdout]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/virt/mod.rs:104:20
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mfio-rt` (lib test) due to 4 previous errors; 20 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6f64c5e14b3c618cf8622f18c54da956f6c89062aff61afbef0dd0c69361e73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f64c5e14b3c618cf8622f18c54da956f6c89062aff61afbef0dd0c69361e73f", kill_on_drop: false }`
[INFO] [stdout] 6f64c5e14b3c618cf8622f18c54da956f6c89062aff61afbef0dd0c69361e73f
