[INFO] fetching crate rats 0.0.1...
[INFO] building rats-0.0.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate rats 0.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rats 0.0.1
[INFO] finished tweaking crates.io crate rats 0.0.1
[INFO] tweaked toml for crates.io crate rats 0.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rats 0.0.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-stable-preview v0.2.3
[INFO] [stderr]   Downloaded futures-io-preview v0.2.2
[INFO] [stderr]   Downloaded futures-executor-preview v0.2.2
[INFO] [stderr]   Downloaded futures-core-preview v0.2.3
[INFO] [stderr]   Downloaded futures-util-preview v0.2.2
[INFO] [stderr]   Downloaded futures-async-runtime-preview v0.2.3
[INFO] [stderr]   Downloaded futures-channel-preview v0.2.2
[INFO] [stderr]   Downloaded futures-sink-preview v0.2.2
[INFO] [stderr]   Downloaded futures-preview v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3065950c85364e40b3b0080b2d9fd14ece054b69485a86b0f8d47bcd5ef7ea6e
[INFO] running `Command { std: "docker" "start" "-a" "3065950c85364e40b3b0080b2d9fd14ece054b69485a86b0f8d47bcd5ef7ea6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3065950c85364e40b3b0080b2d9fd14ece054b69485a86b0f8d47bcd5ef7ea6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3065950c85364e40b3b0080b2d9fd14ece054b69485a86b0f8d47bcd5ef7ea6e", kill_on_drop: false }`
[INFO] [stdout] 3065950c85364e40b3b0080b2d9fd14ece054b69485a86b0f8d47bcd5ef7ea6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a891803100852f29c4b71e2b75707d4cf75ee89657e12abe4925a32b6ee1a06
[INFO] running `Command { std: "docker" "start" "-a" "3a891803100852f29c4b71e2b75707d4cf75ee89657e12abe4925a32b6ee1a06", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling futures-core-preview v0.2.3
[INFO] [stderr]    Compiling futures-channel-preview v0.2.2
[INFO] [stderr]    Compiling futures-io-preview v0.2.2
[INFO] [stderr]    Compiling futures-sink-preview v0.2.2
[INFO] [stderr]    Compiling futures-util-preview v0.2.2
[INFO] [stderr]    Compiling futures-executor-preview v0.2.2
[INFO] [stderr]    Compiling futures-stable-preview v0.2.3
[INFO] [stderr]    Compiling futures-async-runtime-preview v0.2.3
[INFO] [stderr]    Compiling futures-preview v0.2.2
[INFO] [stderr]    Compiling rats v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::AndThen`
[INFO] [stdout]  --> src/instances/future.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::future::AndThen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `applicative::Applicative`
[INFO] [stdout]  --> src/instances/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use applicative::Applicative;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `tool_attributes` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(tool_attributes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kind.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Future(Box<Future<Item = A, Error = B> + 'f_>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Future(Box<dyn Future<Item = A, Error = B> + 'f_>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kinds.rs:69:68
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<Future<Item=A, Error=B>>
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<dyn Future<Item=A, Error=B>>
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kinds.rs:160:27
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn reify(self) -> Box<Future<Item = A, Error = B> + 'f_> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn reify(self) -> Box<dyn Future<Item = A, Error = B> + 'f_> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kinds.rs:159:20
[INFO] [stdout]     |
[INFO] [stdout] 159 |     type Out = Box<Future<Item = A, Error = B> + 'f_>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 159 |     type Out = Box<dyn Future<Item = A, Error = B> + 'f_>;
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ResultKindExt` is never used
[INFO] [stdout]   --> src/instances/result.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | trait ResultKindExt<'f_, A, B> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OkExt` is never used
[INFO] [stdout]   --> src/instances/result.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | trait OkExt {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ErrExt` is never used
[INFO] [stdout]   --> src/instances/result.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 | trait ErrExt {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/instances/future.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn map<'f_, Fn_, A, B>(fa: FutureK<'f_, A,Z>, fn_: Fn_) -> FutureK<B,Z>
[INFO] [stdout]    |                                        ---                     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        the lifetime is named 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: consistently use `'f_`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn map<'f_, Fn_, A, B>(fa: FutureK<'f_, A,Z>, fn_: Fn_) -> FutureK<'f_, B,Z>
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn ok<E>(&self) -> Kind<ResultKind, &Self, E>
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |              |         |                |
[INFO] [stdout]    |              |         |                the same lifetime is elided 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] 43 |     fn ok<E>(&self) -> Kind<'_, ResultKind, &Self, E>
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn err<E>(&self) -> Kind<ResultKind, E, &Self>
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |         |                   |
[INFO] [stdout]    |               |         |                   the same lifetime is elided 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] 49 |     fn err<E>(&self) -> Kind<'_, ResultKind, E, &Self>
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn ok<E>(&self) -> Kind<ResultKind, &A, E> {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |              |         |                |
[INFO] [stdout]    |              |         |                the same lifetime is elided 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] 58 |     fn ok<E>(&self) -> Kind<'_, ResultKind, &A, E> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:65:15
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn err<A>(&self) -> Kind<ResultKind, A, &E> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |         |                   |
[INFO] [stdout]    |               |         |                   the same lifetime is elided 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] 65 |     fn err<A>(&self) -> Kind<'_, ResultKind, A, &E> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/kind.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn as_kind(&self) -> Kind<F_, &A, &B>;
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |         |        |   |
[INFO] [stdout]    |                |         |        |   the same lifetime is elided here
[INFO] [stdout]    |                |         |        the same lifetime is elided 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] 38 |     fn as_kind(&self) -> Kind<'_, F_, &A, &B>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "3a891803100852f29c4b71e2b75707d4cf75ee89657e12abe4925a32b6ee1a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a891803100852f29c4b71e2b75707d4cf75ee89657e12abe4925a32b6ee1a06", kill_on_drop: false }`
[INFO] [stdout] 3a891803100852f29c4b71e2b75707d4cf75ee89657e12abe4925a32b6ee1a06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149d7445b63337b1e1ea24d8a10ed11a029e4daad90176ea53a4ed3a730f6b2e
[INFO] running `Command { std: "docker" "start" "-a" "149d7445b63337b1e1ea24d8a10ed11a029e4daad90176ea53a4ed3a730f6b2e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::AndThen`
[INFO] [stdout]  --> src/instances/future.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::future::AndThen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `applicative::Applicative`
[INFO] [stdout]  --> src/instances/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use applicative::Applicative;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `tool_attributes` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(tool_attributes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rats v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kind.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Future(Box<Future<Item = A, Error = B> + 'f_>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Future(Box<dyn Future<Item = A, Error = B> + 'f_>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kinds.rs:69:68
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<Future<Item=A, Error=B>>
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<dyn Future<Item=A, Error=B>>
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kinds.rs:160:27
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn reify(self) -> Box<Future<Item = A, Error = B> + 'f_> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn reify(self) -> Box<dyn Future<Item = A, Error = B> + 'f_> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kinds.rs:159:20
[INFO] [stdout]     |
[INFO] [stdout] 159 |     type Out = Box<Future<Item = A, Error = B> + 'f_>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 159 |     type Out = Box<dyn Future<Item = A, Error = B> + 'f_>;
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ResultKindExt` is never used
[INFO] [stdout]   --> src/instances/result.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | trait ResultKindExt<'f_, A, B> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OkExt` is never used
[INFO] [stdout]   --> src/instances/result.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | trait OkExt {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ErrExt` is never used
[INFO] [stdout]   --> src/instances/result.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 | trait ErrExt {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/instances/future.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn map<'f_, Fn_, A, B>(fa: FutureK<'f_, A,Z>, fn_: Fn_) -> FutureK<B,Z>
[INFO] [stdout]    |                                        ---                     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        the lifetime is named 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: consistently use `'f_`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn map<'f_, Fn_, A, B>(fa: FutureK<'f_, A,Z>, fn_: Fn_) -> FutureK<'f_, B,Z>
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn ok<E>(&self) -> Kind<ResultKind, &Self, E>
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |              |         |                |
[INFO] [stdout]    |              |         |                the same lifetime is elided 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] 43 |     fn ok<E>(&self) -> Kind<'_, ResultKind, &Self, E>
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn err<E>(&self) -> Kind<ResultKind, E, &Self>
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |         |                   |
[INFO] [stdout]    |               |         |                   the same lifetime is elided 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] 49 |     fn err<E>(&self) -> Kind<'_, ResultKind, E, &Self>
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn ok<E>(&self) -> Kind<ResultKind, &A, E> {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |              |         |                |
[INFO] [stdout]    |              |         |                the same lifetime is elided 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] 58 |     fn ok<E>(&self) -> Kind<'_, ResultKind, &A, E> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:65:15
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn err<A>(&self) -> Kind<ResultKind, A, &E> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |         |                   |
[INFO] [stdout]    |               |         |                   the same lifetime is elided 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] 65 |     fn err<A>(&self) -> Kind<'_, ResultKind, A, &E> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/kind.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn as_kind(&self) -> Kind<F_, &A, &B>;
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |         |        |   |
[INFO] [stdout]    |                |         |        |   the same lifetime is elided here
[INFO] [stdout]    |                |         |        the same lifetime is elided 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] 38 |     fn as_kind(&self) -> Kind<'_, F_, &A, &B>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::AndThen`
[INFO] [stdout]  --> src/instances/future.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::future::AndThen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future`
[INFO] [stdout]   --> src/instances/option.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         use futures::future;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::FutureResult`
[INFO] [stdout]   --> src/instances/option.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         use futures::future::FutureResult;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `applicative::Applicative`
[INFO] [stdout]  --> src/instances/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use applicative::Applicative;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `tool_attributes` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(tool_attributes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kind.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Future(Box<Future<Item = A, Error = B> + 'f_>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Future(Box<dyn Future<Item = A, Error = B> + 'f_>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kinds.rs:69:68
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<Future<Item=A, Error=B>>
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'f_, A: 'f_, B: 'f_>  IntoKind<'f_, FutureKind, A, B> for Box<dyn Future<Item=A, Error=B>>
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kinds.rs:160:27
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn reify(self) -> Box<Future<Item = A, Error = B> + 'f_> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn reify(self) -> Box<dyn Future<Item = A, Error = B> + 'f_> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kinds.rs:159:20
[INFO] [stdout]     |
[INFO] [stdout] 159 |     type Out = Box<Future<Item = A, Error = B> + 'f_>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 159 |     type Out = Box<dyn Future<Item = A, Error = B> + 'f_>;
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/instances/future.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn map<'f_, Fn_, A, B>(fa: FutureK<'f_, A,Z>, fn_: Fn_) -> FutureK<B,Z>
[INFO] [stdout]    |                                        ---                     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        the lifetime is named 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: consistently use `'f_`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn map<'f_, Fn_, A, B>(fa: FutureK<'f_, A,Z>, fn_: Fn_) -> FutureK<'f_, B,Z>
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn ok<E>(&self) -> Kind<ResultKind, &Self, E>
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |              |         |                |
[INFO] [stdout]    |              |         |                the same lifetime is elided 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] 43 |     fn ok<E>(&self) -> Kind<'_, ResultKind, &Self, E>
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn err<E>(&self) -> Kind<ResultKind, E, &Self>
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |         |                   |
[INFO] [stdout]    |               |         |                   the same lifetime is elided 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] 49 |     fn err<E>(&self) -> Kind<'_, ResultKind, E, &Self>
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn ok<E>(&self) -> Kind<ResultKind, &A, E> {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |              |         |                |
[INFO] [stdout]    |              |         |                the same lifetime is elided 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] 58 |     fn ok<E>(&self) -> Kind<'_, ResultKind, &A, E> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/instances/result.rs:65:15
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn err<A>(&self) -> Kind<ResultKind, A, &E> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |         |                   |
[INFO] [stdout]    |               |         |                   the same lifetime is elided 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] 65 |     fn err<A>(&self) -> Kind<'_, ResultKind, A, &E> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/kind.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn as_kind(&self) -> Kind<F_, &A, &B>;
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |         |        |   |
[INFO] [stdout]    |                |         |        |   the same lifetime is elided here
[INFO] [stdout]    |                |         |        the same lifetime is elided 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] 38 |     fn as_kind(&self) -> Kind<'_, F_, &A, &B>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "149d7445b63337b1e1ea24d8a10ed11a029e4daad90176ea53a4ed3a730f6b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149d7445b63337b1e1ea24d8a10ed11a029e4daad90176ea53a4ed3a730f6b2e", kill_on_drop: false }`
[INFO] [stdout] 149d7445b63337b1e1ea24d8a10ed11a029e4daad90176ea53a4ed3a730f6b2e
