[INFO] fetching crate mfio 0.1.0...
[INFO] testing mfio-0.1.0 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate mfio 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mfio 0.1.0
[INFO] finished tweaking crates.io crate mfio 0.1.0
[INFO] tweaked toml for crates.io crate mfio 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mfio 0.1.0 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mfio 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d03c759ab9f8ca388164b3a641b08fca2df437972bc9b83148b7df76fc15c15f
[INFO] running `Command { std: "docker" "start" "-a" "d03c759ab9f8ca388164b3a641b08fca2df437972bc9b83148b7df76fc15c15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d03c759ab9f8ca388164b3a641b08fca2df437972bc9b83148b7df76fc15c15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03c759ab9f8ca388164b3a641b08fca2df437972bc9b83148b7df76fc15c15f", kill_on_drop: false }`
[INFO] [stdout] d03c759ab9f8ca388164b3a641b08fca2df437972bc9b83148b7df76fc15c15f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] b8db7a9716c969c0080dfc10a951c10ce49055e13945eec449b84b5c09146940
[INFO] running `Command { std: "docker" "start" "-a" "b8db7a9716c969c0080dfc10a951c10ce49055e13945eec449b84b5c09146940", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling winnow v0.5.25
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling tarc v0.1.4
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling rangemap v1.4.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling cglue v0.2.14
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling toml_edit v0.20.7
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling proc-macro-crate v2.0.0
[INFO] [stderr]    Compiling cglue-gen v0.2.9
[INFO] [stderr]    Compiling futures v0.3.29
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling mfio-derive v0.1.0
[INFO] [stderr]    Compiling cglue-macro v0.2.3
[INFO] [stderr]    Compiling mfio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/lib.rs:217:11
[INFO] [stdout]     |
[INFO] [stdout] 217 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/lib.rs:230:7
[INFO] [stdout]     |
[INFO] [stdout] 230 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]  --> src/futures_compat.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/futures_compat.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]   --> src/futures_compat.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/futures_compat.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |             #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:438:7
[INFO] [stdout]     |
[INFO] [stdout] 438 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:456:7
[INFO] [stdout]     |
[INFO] [stdout] 456 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:474:7
[INFO] [stdout]     |
[INFO] [stdout] 474 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_assign` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait UsizeMath {
[INFO] [stdout]   |                  --------- method in this trait
[INFO] [stdout] 4 |     fn add_assign(&mut self, val: usize);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_pos` is never used
[INFO] [stdout]   --> src/util.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub(crate) trait PosShift<Io>: CopyPos + UsizeMath {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] 43 |     fn add_pos(&mut self, out: usize, io: &Io);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/backend/mod.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<B> {
[INFO] [stdout]    |                    ^^^^^ the lifetime is elided here            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<'_, B> {
[INFO] [stdout]    |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/backend/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 108 |         mut handle: BackendHandle<B2>,
[INFO] [stdout] 109 |     ) -> BackendHandle<B> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 109 |     ) -> BackendHandle<'_, B> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/backend/mod.rs:403:23
[INFO] [stdout]     |
[INFO] [stdout] 403 |     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] 403 |     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/backend/mod.rs:412:20
[INFO] [stdout]     |
[INFO] [stdout] 412 |     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] 412 |     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/backend/mod.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 423 |         future: F,
[INFO] [stdout] 424 |     ) -> (WithBackend<Self::Backend, F>, Option<PollingHandle>) {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |           |
[INFO] [stdout]     |           the same lifetime is hidden 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] 424 |     ) -> (WithBackend<'_, Self::Backend, F>, Option<PollingHandle<'_>>) {
[INFO] [stdout]     |                       +++                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/futures_compat.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn compat(&self) -> Compat<Self> {
[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] 101 |     fn compat(&self) -> Compat<'_, Self> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/io/mod.rs:244:45
[INFO] [stdout]     |
[INFO] [stdout] 240 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<O, Perms>> {
[INFO] [stdout]     |                  --                         ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the same lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<'a, O, Perms>> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/packet/output.rs:322:13
[INFO] [stdout]     |
[INFO] [stdout] 322 |     fn lock(&self) -> LockGuard<T, Perms> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |         |
[INFO] [stdout]     |             |         the same lifetime is hidden here
[INFO] [stdout]     |             |         the same lifetime is hidden 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] 322 |     fn lock(&self) -> LockGuard<'_, T, Perms> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<Self, Pos, 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] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<'_, Self, Pos, T> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.18s
[INFO] running `Command { std: "docker" "inspect" "b8db7a9716c969c0080dfc10a951c10ce49055e13945eec449b84b5c09146940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8db7a9716c969c0080dfc10a951c10ce49055e13945eec449b84b5c09146940", kill_on_drop: false }`
[INFO] [stdout] b8db7a9716c969c0080dfc10a951c10ce49055e13945eec449b84b5c09146940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 299fd396c955f207d3fa2b631ce83159c0198d3bd6341a6f3ecd9a0933c1b699
[INFO] running `Command { std: "docker" "start" "-a" "299fd396c955f207d3fa2b631ce83159c0198d3bd6341a6f3ecd9a0933c1b699", kill_on_drop: false }`
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[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/lib.rs:217:11
[INFO] [stdout]     |
[INFO] [stdout] 217 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/lib.rs:230:7
[INFO] [stdout]     |
[INFO] [stdout] 230 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]  --> src/futures_compat.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/futures_compat.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]   --> src/futures_compat.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/futures_compat.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |             #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:438:7
[INFO] [stdout]     |
[INFO] [stdout] 438 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:456:7
[INFO] [stdout]     |
[INFO] [stdout] 456 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:474:7
[INFO] [stdout]     |
[INFO] [stdout] 474 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_assign` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait UsizeMath {
[INFO] [stdout]   |                  --------- method in this trait
[INFO] [stdout] 4 |     fn add_assign(&mut self, val: usize);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_pos` is never used
[INFO] [stdout]   --> src/util.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub(crate) trait PosShift<Io>: CopyPos + UsizeMath {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] 43 |     fn add_pos(&mut self, out: usize, io: &Io);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/backend/mod.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<B> {
[INFO] [stdout]    |                    ^^^^^ the lifetime is elided here            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<'_, B> {
[INFO] [stdout]    |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/backend/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 108 |         mut handle: BackendHandle<B2>,
[INFO] [stdout] 109 |     ) -> BackendHandle<B> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 109 |     ) -> BackendHandle<'_, B> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/backend/mod.rs:403:23
[INFO] [stdout]     |
[INFO] [stdout] 403 |     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] 403 |     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/backend/mod.rs:412:20
[INFO] [stdout]     |
[INFO] [stdout] 412 |     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] 412 |     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/backend/mod.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 423 |         future: F,
[INFO] [stdout] 424 |     ) -> (WithBackend<Self::Backend, F>, Option<PollingHandle>) {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |           |
[INFO] [stdout]     |           the same lifetime is hidden 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] 424 |     ) -> (WithBackend<'_, Self::Backend, F>, Option<PollingHandle<'_>>) {
[INFO] [stdout]     |                       +++                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/futures_compat.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn compat(&self) -> Compat<Self> {
[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] 101 |     fn compat(&self) -> Compat<'_, Self> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/io/mod.rs:244:45
[INFO] [stdout]     |
[INFO] [stdout] 240 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<O, Perms>> {
[INFO] [stdout]     |                  --                         ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the same lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<'a, O, Perms>> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/packet/output.rs:322:13
[INFO] [stdout]     |
[INFO] [stdout] 322 |     fn lock(&self) -> LockGuard<T, Perms> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |         |
[INFO] [stdout]     |             |         the same lifetime is hidden here
[INFO] [stdout]     |             |         the same lifetime is hidden 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] 322 |     fn lock(&self) -> LockGuard<'_, T, Perms> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<Self, Pos, 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] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<'_, Self, Pos, T> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/../src/sample.rs:279:23
[INFO] [stdout]     |
[INFO] [stdout] 279 |     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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 279 |     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]    --> examples/../src/sample.rs:283:20
[INFO] [stdout]     |
[INFO] [stdout] 283 |     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] 283 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/lib.rs:217:11
[INFO] [stdout]     |
[INFO] [stdout] 217 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/lib.rs:230:7
[INFO] [stdout]     |
[INFO] [stdout] 230 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]  --> src/futures_compat.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/futures_compat.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]   --> src/futures_compat.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/futures_compat.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |             #[cfg(not(mfio_assume_linear_types))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:438:7
[INFO] [stdout]     |
[INFO] [stdout] 438 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:456:7
[INFO] [stdout]     |
[INFO] [stdout] 456 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stdout]    --> src/io/packet/mod.rs:474:7
[INFO] [stdout]     |
[INFO] [stdout] 474 | #[cfg(mfio_assume_linear_types)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_assign` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait UsizeMath {
[INFO] [stdout]   |                  --------- method in this trait
[INFO] [stdout] 4 |     fn add_assign(&mut self, val: usize);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_pos` is never used
[INFO] [stdout]   --> src/util.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub(crate) trait PosShift<Io>: CopyPos + UsizeMath {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] 43 |     fn add_pos(&mut self, out: usize, io: &Io);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:400:16
[INFO] [stdout]     |
[INFO] [stdout] 400 |         struct TestStruct {
[INFO] [stdout]     |                ^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/lib.rs:398:9
[INFO] [stdout]     |
[INFO] [stdout] 398 | /         #[repr(C)]
[INFO] [stdout] 399 | |         #[derive(Clone, Copy, Eq, PartialEq, Debug, Pod, Zeroable)]
[INFO] [stdout] 400 | |         struct TestStruct {
[INFO] [stdout] 401 | |             a: u32,
[INFO] [stdout] 402 | |             b: u32,
[INFO] [stdout] 403 | |             c: u32,
[INFO] [stdout] 404 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/backend/mod.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<B> {
[INFO] [stdout]    |                    ^^^^^ the lifetime is elided here            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<'_, B> {
[INFO] [stdout]    |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/backend/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 108 |         mut handle: BackendHandle<B2>,
[INFO] [stdout] 109 |     ) -> BackendHandle<B> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 109 |     ) -> BackendHandle<'_, B> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/backend/mod.rs:403:23
[INFO] [stdout]     |
[INFO] [stdout] 403 |     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] 403 |     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/backend/mod.rs:412:20
[INFO] [stdout]     |
[INFO] [stdout] 412 |     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] 412 |     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/backend/mod.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 423 |         future: F,
[INFO] [stdout] 424 |     ) -> (WithBackend<Self::Backend, F>, Option<PollingHandle>) {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |           |
[INFO] [stdout]     |           the same lifetime is hidden 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] 424 |     ) -> (WithBackend<'_, Self::Backend, F>, Option<PollingHandle<'_>>) {
[INFO] [stdout]     |                       +++                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/futures_compat.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn compat(&self) -> Compat<Self> {
[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] 101 |     fn compat(&self) -> Compat<'_, Self> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/io/mod.rs:244:45
[INFO] [stdout]     |
[INFO] [stdout] 240 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<O, Perms>> {
[INFO] [stdout]     |                  --                         ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the same lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<'a, O, Perms>> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/packet/output.rs:322:13
[INFO] [stdout]     |
[INFO] [stdout] 322 |     fn lock(&self) -> LockGuard<T, Perms> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |         |
[INFO] [stdout]     |             |         the same lifetime is hidden here
[INFO] [stdout]     |             |         the same lifetime is hidden 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] 322 |     fn lock(&self) -> LockGuard<'_, T, Perms> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<Self, Pos, 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] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<'_, Self, Pos, T> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/sample.rs:279:23
[INFO] [stdout]     |
[INFO] [stdout] 279 |     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] 279 |     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/sample.rs:283:20
[INFO] [stdout]     |
[INFO] [stdout] 283 |     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] 283 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 43.27s
[INFO] running `Command { std: "docker" "inspect" "299fd396c955f207d3fa2b631ce83159c0198d3bd6341a6f3ecd9a0933c1b699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299fd396c955f207d3fa2b631ce83159c0198d3bd6341a6f3ecd9a0933c1b699", kill_on_drop: false }`
[INFO] [stdout] 299fd396c955f207d3fa2b631ce83159c0198d3bd6341a6f3ecd9a0933c1b699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 391996df4bf798fb00d57bd4252a2f6f48de1836c5bee9938f2298f50b502f00
[INFO] running `Command { std: "docker" "start" "-a" "391996df4bf798fb00d57bd4252a2f6f48de1836c5bee9938f2298f50b502f00", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/lib.rs:217:11
[INFO] [stderr]     |
[INFO] [stderr] 217 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/lib.rs:230:7
[INFO] [stderr]     |
[INFO] [stderr] 230 | #[cfg(mfio_assume_linear_types)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]  --> src/futures_compat.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/futures_compat.rs:117:11
[INFO] [stderr]     |
[INFO] [stderr] 117 | #[cfg(not(mfio_assume_linear_types))]
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]   --> src/futures_compat.rs:28:15
[INFO] [stderr]    |
[INFO] [stderr] 28 |     #[cfg(not(mfio_assume_linear_types))]
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/futures_compat.rs:104:23
[INFO] [stderr]     |
[INFO] [stderr] 104 |             #[cfg(not(mfio_assume_linear_types))]
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/io/packet/mod.rs:438:7
[INFO] [stderr]     |
[INFO] [stderr] 438 | #[cfg(mfio_assume_linear_types)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/io/packet/mod.rs:456:7
[INFO] [stderr]     |
[INFO] [stderr] 456 | #[cfg(mfio_assume_linear_types)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `mfio_assume_linear_types`
[INFO] [stderr]    --> src/io/packet/mod.rs:474:7
[INFO] [stderr]     |
[INFO] [stderr] 474 | #[cfg(mfio_assume_linear_types)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mfio_assume_linear_types)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mfio_assume_linear_types)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: method `add_assign` is never used
[INFO] [stderr]  --> src/util.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub(crate) trait UsizeMath {
[INFO] [stderr]   |                  --------- method in this trait
[INFO] [stderr] 4 |     fn add_assign(&mut self, val: usize);
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `add_pos` is never used
[INFO] [stderr]   --> src/util.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub(crate) trait PosShift<Io>: CopyPos + UsizeMath {
[INFO] [stderr]    |                  -------- method in this trait
[INFO] [stderr] 43 |     fn add_pos(&mut self, out: usize, io: &Io);
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/backend/mod.rs:86:20
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<B> {
[INFO] [stderr]    |                    ^^^^^ the lifetime is elided here            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn acquire(&self, wake_flags: Option<Arc<AtomicU8>>) -> BackendHandle<'_, B> {
[INFO] [stderr]    |                                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/backend/mod.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] 108 |         mut handle: BackendHandle<B2>,
[INFO] [stderr] 109 |     ) -> BackendHandle<B> {
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 109 |     ) -> BackendHandle<'_, B> {
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/backend/mod.rs:403:23
[INFO] [stderr]     |
[INFO] [stderr] 403 |     fn polling_handle(&self) -> Option<PollingHandle>;
[INFO] [stderr]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 403 |     fn polling_handle(&self) -> Option<PollingHandle<'_>>;
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/backend/mod.rs:412:20
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn get_backend(&self) -> BackendHandle<Self::Backend>;
[INFO] [stderr]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend>;
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/backend/mod.rs:422:9
[INFO] [stderr]     |
[INFO] [stderr] 422 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] 423 |         future: F,
[INFO] [stderr] 424 |     ) -> (WithBackend<Self::Backend, F>, Option<PollingHandle>) {
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |           |
[INFO] [stderr]     |           the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 424 |     ) -> (WithBackend<'_, Self::Backend, F>, Option<PollingHandle<'_>>) {
[INFO] [stderr]     |                       +++                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/futures_compat.rs:101:15
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn compat(&self) -> Compat<Self> {
[INFO] [stderr]     |               ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn compat(&self) -> Compat<'_, Self> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/io/mod.rs:244:45
[INFO] [stderr]     |
[INFO] [stderr] 240 |         &'a self,
[INFO] [stderr]     |          -- the lifetime is named here
[INFO] [stderr] ...
[INFO] [stderr] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<O, Perms>> {
[INFO] [stderr]     |                  --                         ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the same lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 244 |     ) -> IoToFut<'a, Self, Perms, Param, T, PacketStream<'a, O, Perms>> {
[INFO] [stderr]     |                                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/io/packet/output.rs:322:13
[INFO] [stderr]     |
[INFO] [stderr] 322 |     fn lock(&self) -> LockGuard<T, Perms> {
[INFO] [stderr]     |             ^^^^^     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |         |
[INFO] [stderr]     |             |         the same lifetime is hidden here
[INFO] [stderr]     |             |         the same lifetime is hidden here
[INFO] [stderr]     |             the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 322 |     fn lock(&self) -> LockGuard<'_, T, Perms> {
[INFO] [stderr]     |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/traits.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<Self, Pos, T> {
[INFO] [stderr]    |                     ^^^^^               ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn read<T: Pod>(&self, pos: Pos) -> IoReadFut<'_, Self, Pos, T> {
[INFO] [stderr]    |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mfio` (lib) generated 20 warnings (run `cargo fix --lib -p mfio` to apply 9 suggestions)
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> examples/../src/sample.rs:279:23
[INFO] [stderr]     |
[INFO] [stderr] 279 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stderr]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 279 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> examples/../src/sample.rs:283:20
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stderr]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:400:16
[INFO] [stderr]     |
[INFO] [stderr] 400 |         struct TestStruct {
[INFO] [stderr]     |                ^^^^^^^^^^ field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing this field
[INFO] [stderr] 
[INFO] [stderr] warning: function `check` is never used
[INFO] [stderr]    --> src/lib.rs:398:9
[INFO] [stderr]     |
[INFO] [stderr] 398 | /         #[repr(C)]
[INFO] [stderr] 399 | |         #[derive(Clone, Copy, Eq, PartialEq, Debug, Pod, Zeroable)]
[INFO] [stderr] 400 | |         struct TestStruct {
[INFO] [stderr] 401 | |             a: u32,
[INFO] [stderr] 402 | |             b: u32,
[INFO] [stderr] 403 | |             c: u32,
[INFO] [stderr] 404 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/sample.rs:279:23
[INFO] [stderr]     |
[INFO] [stderr] 279 |     fn polling_handle(&self) -> Option<PollingHandle> {
[INFO] [stderr]     |                       ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 279 |     fn polling_handle(&self) -> Option<PollingHandle<'_>> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/sample.rs:283:20
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn get_backend(&self) -> BackendHandle<Self::Backend> {
[INFO] [stderr]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn get_backend(&self) -> BackendHandle<'_, Self::Backend> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mfio` (example "sample") generated 2 warnings (run `cargo fix --example "sample" -p mfio` to apply 2 suggestions)
[INFO] [stderr] warning: `mfio` (lib test) generated 24 warnings (20 duplicates) (run `cargo fix --lib -p mfio --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/mfio/3cfe54c90fda20b8/deps/mfio-3cfe54c90fda20b8)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::drop_bare_stream ... ok
[INFO] [stdout] test tests::oobe ... ok
[INFO] [stdout] test tests::single_elem_write ... ok
[INFO] [stdout] test tests::split_oobe ... ok
[INFO] [stdout] test tests::single_elem_write_and_read ... ok
[INFO] [stdout] test tests::split_oobe_func ... ok
[INFO] [stdout] test tests::two_elems ... ok
[INFO] [stdout] test tests::single_elem_read ... ok
[INFO] [stdout] test tests::split_oobe_stream ... ok
[INFO] [stdout] test tests::drop_bound_stream ... ok
[INFO] [stdout] test tests::simple_struct_write_and_read ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'tests::fully_drop_bound_stream' (27) panicked at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:225:5:
[INFO] [stderr] panic in a function that cannot unwind
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x604899435f22 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x604899435f22 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x604899435f22 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x604899435f22 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x60489944aa6a - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x60489944aa6a - core[8f93d80df273fe75]::fmt::write
[INFO] [stderr]    6:     0x60489943bb86 - std[840933623431fd06]::io::default_write_fmt::<std[840933623431fd06]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x60489943bb86 - <std[840933623431fd06]::sys::stdio::unix::Stderr as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x604899413fef - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x604899413fef - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x60489942e221 - std[840933623431fd06]::panicking::default_hook
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x60489935ebbe - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   12:     0x60489935ebbe - test[2f1252070343a163]::test_main_with_exit_callback::<test[2f1252070343a163]::test_main::{closure#0}>::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x60489942e412 - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   14:     0x60489942e412 - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x6048994140da - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:691:13
[INFO] [stderr]   16:     0x60489940ba49 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x604899414efd - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x60489944afcd - core[8f93d80df273fe75]::panicking::panic_nounwind_fmt::runtime
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x60489944afcd - core[8f93d80df273fe75]::panicking::panic_nounwind_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/intrinsics/mod.rs:2431:9
[INFO] [stderr]   20:     0x60489944af4b - core[8f93d80df273fe75]::panicking::panic_nounwind
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:225:5
[INFO] [stderr]   21:     0x60489944b0d7 - core[8f93d80df273fe75]::panicking::panic_cannot_unwind
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:337:5
[INFO] [stderr]   22:     0x6048993250aa - <mfio[ef16bf4de41f5a24]::io::packet::Packet<_>>::new_buf::drop_pkt::<mfio[ef16bf4de41f5a24]::io::packet::Write>
[INFO] [stderr]                                at /opt/rustwide/workdir/src/io/packet/mod.rs:924:9
[INFO] [stderr]   23:     0x6048993fc049 - tarc[d8662e80871986f9]::do_dyn_drop
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tarc-0.1.4/src/lib.rs:73:9
[INFO] [stderr]   24:     0x6048993526ef - <tarc[d8662e80871986f9]::BaseArc<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>> as core[8f93d80df273fe75]::ops::drop::Drop>::drop
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tarc-0.1.4/src/lib.rs:593:34
[INFO] [stderr]   25:     0x60489933a41a - core[8f93d80df273fe75]::ptr::drop_in_place::<tarc[d8662e80871986f9]::BaseArc<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ptr/mod.rs:805:1
[INFO] [stderr]   26:     0x60489931bdcd - core[8f93d80df273fe75]::mem::drop::<tarc[d8662e80871986f9]::BaseArc<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/mem/mod.rs:974:1
[INFO] [stderr]   27:     0x60489932fbac - mfio[ef16bf4de41f5a24]::tests::fully_drop_bound_stream
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:492:9
[INFO] [stderr]   28:     0x60489932d697 - mfio[ef16bf4de41f5a24]::tests::fully_drop_bound_stream::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:480:33
[INFO] [stderr]   29:     0x60489933ea56 - <mfio[ef16bf4de41f5a24]::tests::fully_drop_bound_stream::{closure#0} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   30:     0x604899352f6b - <fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   31:     0x604899352f6b - test[2f1252070343a163]::__rust_begin_short_backtrace::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18
[INFO] [stderr]   32:     0x60489935f7ca - test[2f1252070343a163]::run_test_in_process::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74
[INFO] [stderr]   33:     0x60489935f7ca - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   34:     0x60489935f7ca - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stderr]   35:     0x60489935f7ca - std[840933623431fd06]::panicking::catch_unwind::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stderr]   36:     0x60489935f7ca - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stderr]   37:     0x60489935f7ca - test[2f1252070343a163]::run_test_in_process
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27
[INFO] [stderr]   38:     0x60489935f7ca - test[2f1252070343a163]::run_test::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43
[INFO] [stderr]   39:     0x604899359c94 - test[2f1252070343a163]::run_test::{closure#1}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41
[INFO] [stderr]   40:     0x604899359c94 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<test[2f1252070343a163]::run_test::{closure#1}, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   41:     0x6048993622c2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stderr]   42:     0x6048993622c2 - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   43:     0x6048993622c2 - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stderr]   44:     0x6048993622c2 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stderr]   45:     0x6048993622c2 - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stderr]   46:     0x6048993622c2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stderr]   47:     0x6048993622c2 - <std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   48:     0x6048994357cf - <alloc[40b2bae28975ac47]::boxed::Box<dyn core[8f93d80df273fe75]::ops::function::FnOnce<(), Output = ()> + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9
[INFO] [stderr]   49:     0x6048994357cf - <std[840933623431fd06]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stderr]   50:     0x7fb815055aa4 - <unknown>
[INFO] [stderr]   51:     0x7fb8150e2a64 - clone
[INFO] [stderr]   52:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::fully_drop_bound_stream' (27) panicked at src/io/packet/mod.rs:677:9:
[INFO] [stdout] assertion `left == right` failed: The packet has in-flight segments.
[INFO] [stdout]   left: 1
[INFO] [stdout]  right: 0
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x604899435f22 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x604899435f22 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x604899435f22 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x604899435f22 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x60489944aa6a - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x60489944aa6a - core[8f93d80df273fe75]::fmt::write
[INFO] [stdout]    6:     0x60489943ae26 - std[840933623431fd06]::io::default_write_fmt::<alloc[40b2bae28975ac47]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x60489943ae26 - <alloc[40b2bae28975ac47]::vec::Vec<u8> as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x604899413fef - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x604899413fef - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x60489942e259 - std[840933623431fd06]::panicking::default_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x60489935ebbe - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x60489935ebbe - test[2f1252070343a163]::test_main_with_exit_callback::<test[2f1252070343a163]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x60489942e412 - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x60489942e412 - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x6048994140a8 - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x60489940ba49 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x604899414efd - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x60489944b1dc - core[8f93d80df273fe75]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x60489944b0c3 - core[8f93d80df273fe75]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:434:23
[INFO] [stdout]   20:     0x6048994473b2 - core[8f93d80df273fe75]::panicking::assert_failed::<u64, u64>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x6048993288fc - <mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write> as core[8f93d80df273fe75]::ops::drop::Drop>::drop
[INFO] [stdout]                                at /opt/rustwide/workdir/src/io/packet/mod.rs:677:9
[INFO] [stdout]   22:     0x60489933bcfa - core[8f93d80df273fe75]::ptr::drop_in_place::<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ptr/mod.rs:805:1
[INFO] [stdout]   23:     0x6048993250b3 - <mfio[ef16bf4de41f5a24]::io::packet::Packet<_>>::new_buf::drop_pkt::<mfio[ef16bf4de41f5a24]::io::packet::Write>
[INFO] [stdout]                                at /opt/rustwide/workdir/src/io/packet/mod.rs:925:13
[INFO] [stdout]   24:     0x6048993fc049 - tarc[d8662e80871986f9]::do_dyn_drop
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tarc-0.1.4/src/lib.rs:73:9
[INFO] [stdout]   25:     0x6048993526ef - <tarc[d8662e80871986f9]::BaseArc<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>> as core[8f93d80df273fe75]::ops::drop::Drop>::drop
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tarc-0.1.4/src/lib.rs:593:34
[INFO] [stdout]   26:     0x60489933a41a - core[8f93d80df273fe75]::ptr::drop_in_place::<tarc[d8662e80871986f9]::BaseArc<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ptr/mod.rs:805:1
[INFO] [stdout]   27:     0x60489931bdcd - core[8f93d80df273fe75]::mem::drop::<tarc[d8662e80871986f9]::BaseArc<mfio[ef16bf4de41f5a24]::io::packet::Packet<mfio[ef16bf4de41f5a24]::io::packet::Write>>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/mem/mod.rs:974:1
[INFO] [stdout]   28:     0x60489932fbac - mfio[ef16bf4de41f5a24]::tests::fully_drop_bound_stream
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:492:9
[INFO] [stdout]   29:     0x60489932d697 - mfio[ef16bf4de41f5a24]::tests::fully_drop_bound_stream::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:480:33
[INFO] [stdout]   30:     0x60489933ea56 - <mfio[ef16bf4de41f5a24]::tests::fully_drop_bound_stream::{closure#0} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   31:     0x604899352f6b - <fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x604899352f6b - test[2f1252070343a163]::__rust_begin_short_backtrace::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18
[INFO] [stdout]   33:     0x60489935f7ca - test[2f1252070343a163]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74
[INFO] [stdout]   34:     0x60489935f7ca - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   35:     0x60489935f7ca - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   36:     0x60489935f7ca - std[840933623431fd06]::panicking::catch_unwind::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x60489935f7ca - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x60489935f7ca - test[2f1252070343a163]::run_test_in_process
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27
[INFO] [stdout]   39:     0x60489935f7ca - test[2f1252070343a163]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43
[INFO] [stdout]   40:     0x604899359c94 - test[2f1252070343a163]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41
[INFO] [stdout]   41:     0x604899359c94 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<test[2f1252070343a163]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   42:     0x6048993622c2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   43:     0x6048993622c2 - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   44:     0x6048993622c2 - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   45:     0x6048993622c2 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   46:     0x6048993622c2 - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   47:     0x6048993622c2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   48:     0x6048993622c2 - <std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   49:     0x6048994357cf - <alloc[40b2bae28975ac47]::boxed::Box<dyn core[8f93d80df273fe75]::ops::function::FnOnce<(), Output = ()> + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   50:     0x6048994357cf - <std[840933623431fd06]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   51:     0x7fb815055aa4 - <unknown>
[INFO] [stdout]   52:     0x7fb8150e2a64 - clone
[INFO] [stdout]   53:                0x0 - <unknown>
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mfio/3cfe54c90fda20b8/deps/mfio-3cfe54c90fda20b8` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "391996df4bf798fb00d57bd4252a2f6f48de1836c5bee9938f2298f50b502f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391996df4bf798fb00d57bd4252a2f6f48de1836c5bee9938f2298f50b502f00", kill_on_drop: false }`
[INFO] [stdout] 391996df4bf798fb00d57bd4252a2f6f48de1836c5bee9938f2298f50b502f00
