[INFO] fetching crate scarecrow 0.1.0...
[INFO] checking scarecrow-0.1.0 against try#48c9d93cf65d550d124c40108859fd993778c157 for pr-153692-1
[INFO] extracting crate scarecrow 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate scarecrow 0.1.0
[INFO] finished tweaking crates.io crate scarecrow 0.1.0
[INFO] tweaked toml for crates.io crate scarecrow 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scarecrow 0.1.0 on toolchain 48c9d93cf65d550d124c40108859fd993778c157
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "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" "+48c9d93cf65d550d124c40108859fd993778c157" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2771e9e8970d91fc5f7b201b0b9b94b447764749e7b682f4271dba722f654e95
[INFO] running `Command { std: "docker" "start" "-a" "2771e9e8970d91fc5f7b201b0b9b94b447764749e7b682f4271dba722f654e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2771e9e8970d91fc5f7b201b0b9b94b447764749e7b682f4271dba722f654e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2771e9e8970d91fc5f7b201b0b9b94b447764749e7b682f4271dba722f654e95", kill_on_drop: false }`
[INFO] [stdout] 2771e9e8970d91fc5f7b201b0b9b94b447764749e7b682f4271dba722f654e95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d90c8a70f8d1e5f073262ebfc27bdb7c902a5289087c17c6e76c6daed0e1a1c
[INFO] running `Command { std: "docker" "start" "-a" "4d90c8a70f8d1e5f073262ebfc27bdb7c902a5289087c17c6e76c6daed0e1a1c", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking scarecrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn output(&self, &[f32]) -> Vec<f32>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:50:22
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn derivw(&self, &[f32]) -> Option<Vec<f32>> {
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:78:26
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                          ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:94:22
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                      ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                           ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:102:26
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn weights_mut(self: &mut DenseLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout]     = note: `#[deny(self_lifetime_elision_not_applicable)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn bias_mut(self: &mut DenseLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:122:26
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn weights_mut(self: &mut HyperbolicLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:126:23
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn bias_mut(self: &mut HyperbolicLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:203:26
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn weights_mut(self: &mut SigmoidLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:207:23
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn bias_mut(self: &mut SigmoidLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:223:26
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn weights_mut(self: &mut RectifiedLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn bias_mut(self: &mut RectifiedLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub loss: Box<DifferentiableLossFunction>,
[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 |     pub loss: Box<dyn DifferentiableLossFunction>,
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:55:49
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[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] 55 |     fn train(&self, layers: &mut LinkedList<Box<dyn WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/traits.rs:108:49
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[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] 108 |     fn train(&self, layers: &mut LinkedList<Box<dyn WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[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] 28 |     fn weight_step(&self, layer: &Box<dyn WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:44:37
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[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] 44 |     fn bias_step(&self, layer: &Box<dyn WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn output(&self, &[f32]) -> Vec<f32>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:50:22
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn derivw(&self, &[f32]) -> Option<Vec<f32>> {
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:78:26
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                          ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:94:22
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                      ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/traits.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stdout]    |                           ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:102:26
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn weights_mut(self: &mut DenseLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout]     = note: `#[deny(self_lifetime_elision_not_applicable)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn bias_mut(self: &mut DenseLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:122:26
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn weights_mut(self: &mut HyperbolicLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:126:23
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn bias_mut(self: &mut HyperbolicLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:203:26
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn weights_mut(self: &mut SigmoidLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:207:23
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn bias_mut(self: &mut SigmoidLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:223:26
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn weights_mut(self: &mut RectifiedLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/layers.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn bias_mut(self: &mut RectifiedLayer) -> Option<&mut Vec<f32>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub loss: Box<DifferentiableLossFunction>,
[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 |     pub loss: Box<dyn DifferentiableLossFunction>,
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:55:49
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[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] 55 |     fn train(&self, layers: &mut LinkedList<Box<dyn WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/traits.rs:108:49
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[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] 108 |     fn train(&self, layers: &mut LinkedList<Box<dyn WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[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] 28 |     fn weight_step(&self, layer: &Box<dyn WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sgd.rs:44:37
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[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] 44 |     fn bias_step(&self, layer: &Box<dyn WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scarecrow` (lib test) due to 8 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `scarecrow` (lib) due to 8 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4d90c8a70f8d1e5f073262ebfc27bdb7c902a5289087c17c6e76c6daed0e1a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d90c8a70f8d1e5f073262ebfc27bdb7c902a5289087c17c6e76c6daed0e1a1c", kill_on_drop: false }`
[INFO] [stdout] 4d90c8a70f8d1e5f073262ebfc27bdb7c902a5289087c17c6e76c6daed0e1a1c
