[INFO] fetching crate ktensor 0.1.0...
[INFO] checking ktensor-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ktensor 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ktensor 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ktensor 0.1.0
[INFO] finished tweaking crates.io crate ktensor 0.1.0
[INFO] tweaked toml for crates.io crate ktensor 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4995b0c02c96fc5e6fe1845d889892c41e0fbc39b09892b6d7809f03c337773
[INFO] running `Command { std: "docker" "start" "-a" "d4995b0c02c96fc5e6fe1845d889892c41e0fbc39b09892b6d7809f03c337773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4995b0c02c96fc5e6fe1845d889892c41e0fbc39b09892b6d7809f03c337773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4995b0c02c96fc5e6fe1845d889892c41e0fbc39b09892b6d7809f03c337773", kill_on_drop: false }`
[INFO] [stdout] d4995b0c02c96fc5e6fe1845d889892c41e0fbc39b09892b6d7809f03c337773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2d32526a17bd4d436d591456be54de998b005f2268acf7ff8a35e0845177021
[INFO] running `Command { std: "docker" "start" "-a" "c2d32526a17bd4d436d591456be54de998b005f2268acf7ff8a35e0845177021", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ktensor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<Graph<T>>>,
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<dyn Graph<T>>>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<Graph<T>>>,
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<dyn Graph<T>>>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/dot.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<dyn Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/dot.rs:23:57
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<dyn Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/add.rs:46:39
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<dyn Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/add.rs:46:57
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<dyn Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/dot.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<dyn Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/run/mod.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn execute<T>(node: Arc<Graph<T>>, state: &Context<T>, variables: &Context<T>) -> Tensor<T> where T: Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn execute<T>(node: Arc<dyn Graph<T>>, state: &Context<T>, variables: &Context<T>) -> Tensor<T> where T: Copy {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/run/mod.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn train<T>(node: Arc<Graph<T>>, state: &mut Context<T>, variables: &Context<T>, history: &mut Context<T>, rate: T) where T: Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn train<T>(node: Arc<dyn Graph<T>>, state: &mut Context<T>, variables: &Context<T>, history: &mut Context<T>, rate: T) where T: Copy {
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/context/mod.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn from_vec(context_vec: Vec<(&Graph<T>, Tensor<T>)>) -> Context<T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn from_vec(context_vec: Vec<(&dyn Graph<T>, Tensor<T>)>) -> Context<T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:29:164
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...sor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(node_id: String, operation: fn(Vec<Tensor<T>>) -> Tensor<T>, operation_prime: fn(&Tensor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<dyn Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[INFO] [stdout]    |                                                                                                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:39:169
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...sor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, dimension: Vec2) -> Node<T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn with_dim(node_id: String, operation: fn(Vec<Tensor<T>>) -> Tensor<T>, operation_prime: fn(&Tensor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<dyn Graph<T>>>, dimension: Vec2) -> Node<T> {
[INFO] [stdout]    |                                                                                                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/dot.rs:23:57
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn dot<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<dyn Graph<T>>) -> Node<T> where T: Mul<Output=T> + Add<Output=T> + Copy {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/add.rs:46:39
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<dyn Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/add.rs:46:57
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn add<T>(node_id: String, a: Arc<Graph<T>>, b: Arc<dyn Graph<T>>) -> Node<T> where T: Copy + Mul<Output=T> + Add<Output=T> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/run/mod.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn execute<T>(node: Arc<Graph<T>>, state: &Context<T>, variables: &Context<T>) -> Tensor<T> where T: Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn execute<T>(node: Arc<dyn Graph<T>>, state: &Context<T>, variables: &Context<T>) -> Tensor<T> where T: Copy {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/run/mod.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn train<T>(node: Arc<Graph<T>>, state: &mut Context<T>, variables: &Context<T>, history: &mut Context<T>, rate: T) where T: Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn train<T>(node: Arc<dyn Graph<T>>, state: &mut Context<T>, variables: &Context<T>, history: &mut Context<T>, rate: T) where T: Copy {
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/context/mod.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn from_vec(context_vec: Vec<(&Graph<T>, Tensor<T>)>) -> Context<T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn from_vec(context_vec: Vec<(&dyn Graph<T>, Tensor<T>)>) -> Context<T> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:29:164
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...sor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(node_id: String, operation: fn(Vec<Tensor<T>>) -> Tensor<T>, operation_prime: fn(&Tensor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<dyn Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[INFO] [stdout]    |                                                                                                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:39:169
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...sor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, dimension: Vec2) -> Node<T> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn with_dim(node_id: String, operation: fn(Vec<Tensor<T>>) -> Tensor<T>, operation_prime: fn(&Tensor<T>, Vec<&Tensor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<dyn Graph<T>>>, dimension: Vec2) -> Node<T> {
[INFO] [stdout]    |                                                                                                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/softmax.rs:77:44
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn softmax_f64(node_id: String, a: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn softmax_f64(node_id: String, a: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/softmax.rs:81:44
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn softmax_f32(node_id: String, a: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn softmax_f32(node_id: String, a: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/relu.rs:59:41
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn relu_f64(node_id: String, z: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn relu_f64(node_id: String, z: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/relu.rs:63:41
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn relu_f32(node_id: String, z: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn relu_f32(node_id: String, z: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/sigmoid.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn sigmoid_f64(node_id: String, z: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn sigmoid_f64(node_id: String, z: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/sigmoid.rs:67:44
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn sigmoid_f32(node_id: String, z: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn sigmoid_f32(node_id: String, z: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:36:58
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<dyn Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:36:78
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:40:58
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<dyn Graph<f32>>, y: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:40:78
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/softmax.rs:77:44
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn softmax_f64(node_id: String, a: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn softmax_f64(node_id: String, a: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/softmax.rs:81:44
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn softmax_f32(node_id: String, a: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn softmax_f32(node_id: String, a: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/relu.rs:59:41
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn relu_f64(node_id: String, z: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn relu_f64(node_id: String, z: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/relu.rs:63:41
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn relu_f32(node_id: String, z: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn relu_f32(node_id: String, z: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/sigmoid.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn sigmoid_f64(node_id: String, z: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn sigmoid_f64(node_id: String, z: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/op/sigmoid.rs:67:44
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn sigmoid_f32(node_id: String, z: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn sigmoid_f32(node_id: String, z: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:36:58
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<dyn Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:36:78
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<dyn Graph<f64>>) -> Node<f64> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:40:58
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<dyn Graph<f32>>, y: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cost/softxentropy.rs:40:78
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<Graph<f32>>) -> Node<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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<dyn Graph<f32>>) -> Node<f32> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/xor.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut graph_head: Arc<Graph<f64>> = input_x.clone();
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut graph_head: Arc<dyn Graph<f64>> = input_x.clone();
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/mnist.rs:17:63
[INFO] [stdout]    |
[INFO] [stdout] 17 |         Err(reason) => panic!("failed to read u8: {}", Error::description(&reason)),
[INFO] [stdout]    |                                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/mnist.rs:30:64
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Err(reason) => panic!("failed to read u32: {}", Error::description(&reason)),
[INFO] [stdout]    |                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/mnist.rs:37:86
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Err(reason) => panic!("failed to open {}: {}", labels_path.display(), Error::description(&reason)),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/mnist.rs:41:84
[INFO] [stdout]    |
[INFO] [stdout] 41 |         Err(reason) => panic!("failed to open {}: {}", data_path.display(), Error::description(&reason)),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/mnist.rs:67:80
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Err(reason) => panic!("failed to read data byte array: {}", Error::description(&reason)),
[INFO] [stdout]    |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/mnist.rs:72:82
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Err(reason) => panic!("failed to read labels byte array: {}", Error::description(&reason)),
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/mnist.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn read_u8(reader: &mut Read) -> u8 {
[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]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn read_u8(reader: &mut dyn Read) -> u8 {
[INFO] [stdout]   |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/mnist.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn read_u32(reader: &mut Read) -> u32 {
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn read_u32(reader: &mut dyn Read) -> u32 {
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/mnist.rs:121:29
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let mut graph_head: Arc<Graph<f32>> = input_x.clone();
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let mut graph_head: Arc<dyn Graph<f32>> = input_x.clone();
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_u8` is never used
[INFO] [stdout]  --> tests/mnist.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn read_u8(reader: &mut Read) -> u8 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "c2d32526a17bd4d436d591456be54de998b005f2268acf7ff8a35e0845177021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2d32526a17bd4d436d591456be54de998b005f2268acf7ff8a35e0845177021", kill_on_drop: false }`
[INFO] [stdout] c2d32526a17bd4d436d591456be54de998b005f2268acf7ff8a35e0845177021