[INFO] cloning repository https://github.com/spacecowboy/scarecrow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spacecowboy/scarecrow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacecowboy%2Fscarecrow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacecowboy%2Fscarecrow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11e5df59b4460880f77b1bdf601966debb30643a
[INFO] testing spacecowboy/scarecrow against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacecowboy%2Fscarecrow" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spacecowboy/scarecrow on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spacecowboy/scarecrow
[INFO] finished tweaking git repo https://github.com/spacecowboy/scarecrow
[INFO] tweaked toml for git repo https://github.com/spacecowboy/scarecrow written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/spacecowboy/scarecrow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d50d6e03e7d38139f9e813271f3942db9b3185e0ca6588e542812971ae082742
[INFO] running `Command { std: "docker" "start" "-a" "d50d6e03e7d38139f9e813271f3942db9b3185e0ca6588e542812971ae082742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d50d6e03e7d38139f9e813271f3942db9b3185e0ca6588e542812971ae082742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d50d6e03e7d38139f9e813271f3942db9b3185e0ca6588e542812971ae082742", kill_on_drop: false }`
[INFO] [stdout] d50d6e03e7d38139f9e813271f3942db9b3185e0ca6588e542812971ae082742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 713e56255dd070ced0e00441009e5fb9fc71131cd5be32eb1874f9ffb72610fc
[INFO] running `Command { std: "docker" "start" "-a" "713e56255dd070ced0e00441009e5fb9fc71131cd5be32eb1874f9ffb72610fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]    = note: `#[warn(anonymous_parameters)]` on by default
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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]     |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DifferentiableLossFunction`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "713e56255dd070ced0e00441009e5fb9fc71131cd5be32eb1874f9ffb72610fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713e56255dd070ced0e00441009e5fb9fc71131cd5be32eb1874f9ffb72610fc", kill_on_drop: false }`
[INFO] [stdout] 713e56255dd070ced0e00441009e5fb9fc71131cd5be32eb1874f9ffb72610fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93175285d072ed23ab2632a6189590314e845e3a130d6bc2450f1d106cd951f6
[INFO] running `Command { std: "docker" "start" "-a" "93175285d072ed23ab2632a6189590314e845e3a130d6bc2450f1d106cd951f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]    = note: `#[warn(anonymous_parameters)]` on by default
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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]     |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DifferentiableLossFunction`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/sgd.rs:16:36
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut layers: LinkedList<Box<WeightedLayer>> = LinkedList::new();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = note: `#[warn(anonymous_parameters)]` on by default
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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]     |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DifferentiableLossFunction`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "93175285d072ed23ab2632a6189590314e845e3a130d6bc2450f1d106cd951f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93175285d072ed23ab2632a6189590314e845e3a130d6bc2450f1d106cd951f6", kill_on_drop: false }`
[INFO] [stdout] 93175285d072ed23ab2632a6189590314e845e3a130d6bc2450f1d106cd951f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c48e993d5101e7eb27196de029e790a56cd31ca8b36a16f1fc0c2fee49803719
[INFO] running `Command { std: "docker" "start" "-a" "c48e993d5101e7eb27196de029e790a56cd31ca8b36a16f1fc0c2fee49803719", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout] running 15 tests
[INFO] [stderr]   --> src/traits.rs:12:22
[INFO] [stdout] test layers::tests::hyperbolic_derivo ... ok
[INFO] [stderr]    |
[INFO] [stdout] test layers::tests::rectified_delta_from_inputs ... ok
[INFO] [stderr] 12 |     fn output(&self, &[f32]) -> Vec<f32>;
[INFO] [stdout] test layers::tests::sigmoid_delta_from_outputs ... ok
[INFO] [stderr]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stdout] test utils::tests::dot_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test utils::tests::add_test ... ok
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] test layers::tests::sigmoid_output ... ok
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] test utils::tests::normal_vector_test ... ok
[INFO] [stderr] 
[INFO] [stdout] test layers::tests::dense_delta_from_inputs ... ok
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:50:22
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn derivw(&self, &[f32]) -> Option<Vec<f32>> {
[INFO] [stderr]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:78:26
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                          ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:94:22
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                      ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:94:27
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                           ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/traits.rs:108:49
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub loss: Box<DifferentiableLossFunction>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DifferentiableLossFunction`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:28:39
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:44:37
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:55:49
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn output(&self, &[f32]) -> Vec<f32>;
[INFO] [stderr]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:50:22
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn derivw(&self, &[f32]) -> Option<Vec<f32>> {
[INFO] [stderr]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:78:26
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn loss1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                          ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:94:22
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                      ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/traits.rs:94:27
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn deriv1(&self, f32, f32) -> f32;
[INFO] [stderr]    |                           ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/traits.rs:108:49
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub loss: Box<DifferentiableLossFunction>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DifferentiableLossFunction`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:28:39
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:44:37
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sgd.rs:55:49
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/sgd.rs:16:36
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut layers: LinkedList<Box<WeightedLayer>> = LinkedList::new();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn WeightedLayer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scarecrow-1d58333f990f1cad)
[INFO] [stdout] test utils::tests::sum_test ... ok
[INFO] [stdout] test utils::tests::product_test ... ok
[INFO] [stderr]      Running tests/sgd.rs (/opt/rustwide/target/debug/deps/sgd-dc34988e8adfeff1)
[INFO] [stdout] test layers::tests::dense_output ... ok
[INFO] [stdout] test layers::tests::dense_derivw ... ok
[INFO] [stdout] test layers::tests::hyperbolic_output ... ok
[INFO] [stdout] test layers::tests::rectified_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test train_xor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scarecrow
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 29) ... ignored
[INFO] [stdout] test src/lib.rs - (line 48) ... ignored
[INFO] [stdout] test src/lib.rs - (line 70) ... ignored
[INFO] [stdout] test src/lib.rs - (line 80) ... ignored
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c48e993d5101e7eb27196de029e790a56cd31ca8b36a16f1fc0c2fee49803719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c48e993d5101e7eb27196de029e790a56cd31ca8b36a16f1fc0c2fee49803719", kill_on_drop: false }`
[INFO] [stdout] c48e993d5101e7eb27196de029e790a56cd31ca8b36a16f1fc0c2fee49803719