[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 beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacecowboy%2Fscarecrow" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spacecowboy/scarecrow on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-2/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" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e048bb1314d59600d0b3f972f02497b918e1fabfb2c59d4e0f0e2c400c292f4e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e048bb1314d59600d0b3f972f02497b918e1fabfb2c59d4e0f0e2c400c292f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e048bb1314d59600d0b3f972f02497b918e1fabfb2c59d4e0f0e2c400c292f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e048bb1314d59600d0b3f972f02497b918e1fabfb2c59d4e0f0e2c400c292f4e", kill_on_drop: false }`
[INFO] [stdout] e048bb1314d59600d0b3f972f02497b918e1fabfb2c59d4e0f0e2c400c292f4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b306e90f145523d86aff20529ca32a8654e019492e5dd8f1594835b29d867758
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b306e90f145523d86aff20529ca32a8654e019492e5dd8f1594835b29d867758", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling rand v0.3.15
[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]     |                                                 ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 108 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub loss: Box<DifferentiableLossFunction>,
[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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 -     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stdout] 44 +     fn bias_step(&self, layer: &Box<dyn WeightedLayer>, 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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "b306e90f145523d86aff20529ca32a8654e019492e5dd8f1594835b29d867758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b306e90f145523d86aff20529ca32a8654e019492e5dd8f1594835b29d867758", kill_on_drop: false }`
[INFO] [stdout] b306e90f145523d86aff20529ca32a8654e019492e5dd8f1594835b29d867758
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a30ae2c71dbdd2150986706bc75cdde02f92dcf8bf984e3b075be5d7c2932c3d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a30ae2c71dbdd2150986706bc75cdde02f92dcf8bf984e3b075be5d7c2932c3d", 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]     |                                                 ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 108 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub loss: Box<DifferentiableLossFunction>,
[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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 -     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stdout] 44 +     fn bias_step(&self, layer: &Box<dyn WeightedLayer>, 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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[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: 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]    |                                    ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     let mut layers: LinkedList<Box<WeightedLayer>> = LinkedList::new();
[INFO] [stdout] 16 +     let mut layers: LinkedList<Box<dyn WeightedLayer>> = LinkedList::new();
[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]    = 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]     |                                                 ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 108 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub loss: Box<DifferentiableLossFunction>,
[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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 -     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stdout] 44 +     fn bias_step(&self, layer: &Box<dyn WeightedLayer>, 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: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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "a30ae2c71dbdd2150986706bc75cdde02f92dcf8bf984e3b075be5d7c2932c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a30ae2c71dbdd2150986706bc75cdde02f92dcf8bf984e3b075be5d7c2932c3d", kill_on_drop: false }`
[INFO] [stdout] a30ae2c71dbdd2150986706bc75cdde02f92dcf8bf984e3b075be5d7c2932c3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72b5e14a317553d5f539992b26f234daac0d14fbe018e9fc38817c032bfef93f
[INFO] running `Command { std: "docker" "start" "-a" "72b5e14a317553d5f539992b26f234daac0d14fbe018e9fc38817c032bfef93f", 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::dense_derivw ... ok
[INFO] [stderr]    |
[INFO] [stdout] test layers::tests::rectified_output ... ok
[INFO] [stderr] 12 |     fn output(&self, &[f32]) -> Vec<f32>;
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[f32]`
[INFO] [stdout] test utils::tests::sum_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test utils::tests::add_test ... ok
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] test utils::tests::product_test ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] test utils::tests::normal_vector_test ... ok
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] test layers::tests::dense_output ... ok
[INFO] [stderr] 
[INFO] [stdout] test utils::tests::dot_test ... ok
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] test layers::tests::dense_delta_from_inputs ... ok
[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]     |                                                 ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 108 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[INFO] [stderr] 108 +     fn train(&self, layers: &mut LinkedList<Box<dyn WeightedLayer>>, inputs: &[f32], targets: &[f32]);
[INFO] [stderr]     | 
[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]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 16 -     pub loss: Box<DifferentiableLossFunction>,
[INFO] [stderr] 16 +     pub loss: Box<dyn DifferentiableLossFunction>,
[INFO] [stderr]    | 
[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]    |                                       ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 28 -     fn weight_step(&self, layer: &Box<WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[INFO] [stderr] 28 +     fn weight_step(&self, layer: &Box<dyn WeightedLayer>, inputs: &[f32], delta: &[f32]) -> Vec<f32> {
[INFO] [stderr]    | 
[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]    |                                     ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 44 -     fn bias_step(&self, layer: &Box<WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stderr] 44 +     fn bias_step(&self, layer: &Box<dyn WeightedLayer>, delta: &[f32]) -> Vec<f32> {
[INFO] [stderr]    | 
[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]    |                                                 ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 55 -     fn train(&self, layers: &mut LinkedList<Box<WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[INFO] [stderr] 55 +     fn train(&self, layers: &mut LinkedList<Box<dyn WeightedLayer>>, inputs: &[f32], targets: &[f32]) {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `scarecrow` (lib) generated 11 warnings
[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]    |                                    ^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 16 -     let mut layers: LinkedList<Box<WeightedLayer>> = LinkedList::new();
[INFO] [stderr] 16 +     let mut layers: LinkedList<Box<dyn WeightedLayer>> = LinkedList::new();
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `scarecrow` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr] warning: `scarecrow` (test "sgd") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scarecrow-c4c793447101fc5e)
[INFO] [stdout] test layers::tests::sigmoid_delta_from_outputs ... ok
[INFO] [stdout] test layers::tests::hyperbolic_derivo ... ok
[INFO] [stdout] test layers::tests::hyperbolic_output ... ok
[INFO] [stdout] test layers::tests::rectified_delta_from_inputs ... ok
[INFO] [stdout] test layers::tests::sigmoid_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sgd.rs (/opt/rustwide/target/debug/deps/sgd-6bd5091f816595a9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests scarecrow
[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 0.16s
[INFO] [stdout] 
[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 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72b5e14a317553d5f539992b26f234daac0d14fbe018e9fc38817c032bfef93f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b5e14a317553d5f539992b26f234daac0d14fbe018e9fc38817c032bfef93f", kill_on_drop: false }`
[INFO] [stdout] 72b5e14a317553d5f539992b26f234daac0d14fbe018e9fc38817c032bfef93f