[INFO] fetching crate ktensor 0.1.0...
[INFO] testing ktensor-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ktensor 0.1.0 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate ktensor 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-39/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 809345ab19d4922bf3acaddff5f607c7b73db63485895bb8c5c5ca6e362bcbb4
[INFO] running `Command { std: "docker" "start" "-a" "809345ab19d4922bf3acaddff5f607c7b73db63485895bb8c5c5ca6e362bcbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "809345ab19d4922bf3acaddff5f607c7b73db63485895bb8c5c5ca6e362bcbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "809345ab19d4922bf3acaddff5f607c7b73db63485895bb8c5c5ca6e362bcbb4", kill_on_drop: false }`
[INFO] [stdout] 809345ab19d4922bf3acaddff5f607c7b73db63485895bb8c5c5ca6e362bcbb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 028399c8f57434a7a223049929cc9241ca120f50de8b5c46140bc6570b6685a9
[INFO] running `Command { std: "docker" "start" "-a" "028399c8f57434a7a223049929cc9241ca120f50de8b5c46140bc6570b6685a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling ktensor v0.1.0 (/opt/rustwide/workdir)
[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]    |                                        ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<Graph<T>>>,
[INFO] [stdout]    |                    ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:29:164
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[INFO] [stdout]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:39:169
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, dimension: Vec2) -> Node<T> {
[INFO] [stdout]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/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]   |                             ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                           ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "028399c8f57434a7a223049929cc9241ca120f50de8b5c46140bc6570b6685a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "028399c8f57434a7a223049929cc9241ca120f50de8b5c46140bc6570b6685a9", kill_on_drop: false }`
[INFO] [stdout] 028399c8f57434a7a223049929cc9241ca120f50de8b5c46140bc6570b6685a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8b3ba691224165a5a7b0efd42aafb9c9786bccd6eacbb33f41206073ff04848
[INFO] running `Command { std: "docker" "start" "-a" "f8b3ba691224165a5a7b0efd42aafb9c9786bccd6eacbb33f41206073ff04848", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ktensor v0.1.0 (/opt/rustwide/workdir)
[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]    |                                        ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<Graph<T>>>,
[INFO] [stdout]    |                    ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:29:164
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[INFO] [stdout]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:39:169
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, dimension: Vec2) -> Node<T> {
[INFO] [stdout]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/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]   |                             ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                           ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 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]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/mnist.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn read_u8(reader: &mut Read) -> u8 {
[INFO] [stdout]   |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/mnist.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn read_u32(reader: &mut Read) -> u32 {
[INFO] [stdout]    |                          ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/mnist.rs:121:29
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let mut graph_head: Arc<Graph<f32>> = input_x.clone();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                        ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     param: Vec<Arc<Graph<T>>>,
[INFO] [stdout]    |                    ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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: 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>>, parameter: Vec<Arc<Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[INFO] [stdout]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/node/junction.rs:39:169
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, dimension: Vec2) -> Node<T> {
[INFO] [stdout]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 associated function `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: 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]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 associated function `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: 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]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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]   --> 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]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/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]   |                             ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/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]    |                           ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_u8`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "f8b3ba691224165a5a7b0efd42aafb9c9786bccd6eacbb33f41206073ff04848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b3ba691224165a5a7b0efd42aafb9c9786bccd6eacbb33f41206073ff04848", kill_on_drop: false }`
[INFO] [stdout] f8b3ba691224165a5a7b0efd42aafb9c9786bccd6eacbb33f41206073ff04848
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f703375273c32532e0ab6e2ebb249216a537f4514fdeb57ca3708ffd20a093da
[INFO] running `Command { std: "docker" "start" "-a" "f703375273c32532e0ab6e2ebb249216a537f4514fdeb57ca3708ffd20a093da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/context/mod.rs:26:40
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn from_vec(context_vec: Vec<(&Graph<T>, Tensor<T>)>) -> Context<T> {
[INFO] [stderr]    |                                        ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/node/junction.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 |     param: Vec<Arc<Graph<T>>>,
[INFO] [stderr]    |                    ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/node/junction.rs:29:164
[INFO] [stderr]    |
[INFO] [stderr] 29 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, calc_dim: fn(Vec<Vec2>) -> Vec2) -> Node<T> where T: Copy {
[INFO] [stderr]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/node/junction.rs:39:169
[INFO] [stderr]    |
[INFO] [stderr] 39 | ...sor<T>>) -> Vec<Tensor<T>>, parameter: Vec<Arc<Graph<T>>>, dimension: Vec2) -> Node<T> {
[INFO] [stderr]    |                                                   ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/dot.rs:23:39
[INFO] [stderr]    |
[INFO] [stderr] 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] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/dot.rs:23:57
[INFO] [stderr]    |
[INFO] [stderr] 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] [stderr]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/add.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 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] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/add.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 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] [stderr]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/softmax.rs:77:44
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn softmax_f64(node_id: String, a: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stderr]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/softmax.rs:81:44
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn softmax_f32(node_id: String, a: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stderr]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/relu.rs:59:41
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn relu_f64(node_id: String, z: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/relu.rs:63:41
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn relu_f32(node_id: String, z: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/sigmoid.rs:63:44
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn sigmoid_f64(node_id: String, z: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stderr]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/op/sigmoid.rs:67:44
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn sigmoid_f32(node_id: String, z: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stderr]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cost/softxentropy.rs:36:58
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stderr]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cost/softxentropy.rs:36:78
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn softmax_cross_entropy_f64(node_id: String, s: Arc<Graph<f64>>, y: Arc<Graph<f64>>) -> Node<f64> {
[INFO] [stderr]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cost/softxentropy.rs:40:58
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stderr]    |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cost/softxentropy.rs:40:78
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn softmax_cross_entropy_f32(node_id: String, s: Arc<Graph<f32>>, y: Arc<Graph<f32>>) -> Node<f32> {
[INFO] [stderr]    |                                                                              ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/run/mod.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn execute<T>(node: Arc<Graph<T>>, state: &Context<T>, variables: &Context<T>) -> Tensor<T> where T: Copy {
[INFO] [stderr]   |                             ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/run/mod.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 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] [stderr]    |                           ^^^^^^^^ help: use `dyn`: `dyn Graph<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `ktensor` (lib) generated 20 warnings
[INFO] [stderr] warning: `ktensor` (lib test) generated 20 warnings (20 duplicates)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/mnist.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn read_u8(reader: &mut Read) -> u8 {
[INFO] [stderr]   |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/mnist.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn read_u32(reader: &mut Read) -> u32 {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/mnist.rs:121:29
[INFO] [stderr]     |
[INFO] [stderr] 121 |     let mut graph_head: Arc<Graph<f32>> = input_x.clone();
[INFO] [stderr]     |                             ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f32>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> tests/mnist.rs:17:63
[INFO] [stderr]    |
[INFO] [stderr] 17 |         Err(reason) => panic!("failed to read u8: {}", Error::description(&reason)),
[INFO] [stderr]    |                                                               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> tests/mnist.rs:30:64
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Err(reason) => panic!("failed to read u32: {}", Error::description(&reason)),
[INFO] [stderr]    |                                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> tests/mnist.rs:37:86
[INFO] [stderr]    |
[INFO] [stderr] 37 |         Err(reason) => panic!("failed to open {}: {}", labels_path.display(), Error::description(&reason)),
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> tests/mnist.rs:41:84
[INFO] [stderr]    |
[INFO] [stderr] 41 |         Err(reason) => panic!("failed to open {}: {}", data_path.display(), Error::description(&reason)),
[INFO] [stderr]    |                                                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> tests/mnist.rs:67:80
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Err(reason) => panic!("failed to read data byte array: {}", Error::description(&reason)),
[INFO] [stderr]    |                                                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> tests/mnist.rs:72:82
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Err(reason) => panic!("failed to read labels byte array: {}", Error::description(&reason)),
[INFO] [stderr]    |                                                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_u8`
[INFO] [stderr]  --> tests/mnist.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn read_u8(reader: &mut Read) -> u8 {
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/xor.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut graph_head: Arc<Graph<f64>> = input_x.clone();
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Graph<f64>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `ktensor` (test "mnist") generated 10 warnings
[INFO] [stderr] warning: `ktensor` (test "xor") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ktensor-b63e261df18af3d7)
[INFO] [stderr]      Running tests/mnist.rs (/opt/rustwide/target/debug/deps/mnist-54ed43fd158bd03f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/xor.rs (/opt/rustwide/target/debug/deps/xor-3ae2f012ac12f781)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test mnist ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test xor ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ktensor
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::get (line 130) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::&'a Matrix<T>::add (line 311) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::mul (line 345) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::&'a Matrix<T>::add (line 251) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::new (line 28) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::add (line 284) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::mul (line 296) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::transpose (line 177) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::to_flattened (line 57) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::add (line 220) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::add (line 188) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::get_indicies (line 76) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::&'a Matrix<T>::mul (line 448) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::get_indicies_stride (line 105) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::&'a Tensor<T>::add (line 264) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::add (line 240) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::transpose (line 84) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::get_submatrix (line 148) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::&'a Tensor<T>::mul (line 321) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::&'a Matrix<T>::mul (line 382) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::mul (line 421) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<f32>::from_gaussian (line 152) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::new (line 27) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::product (line 480) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::&'a Tensor<T>::add (line 212) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<f64>::from_gaussian (line 123) ... ok
[INFO] [stdout] test src/math/matrix.rs - math::matrix::Matrix<T>::to_flattened (line 53) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::mul (line 350) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::Tensor<T>::product (line 404) ... ok
[INFO] [stdout] test src/tensor/mod.rs - tensor::&'a Tensor<T>::mul (line 374) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.71s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f703375273c32532e0ab6e2ebb249216a537f4514fdeb57ca3708ffd20a093da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f703375273c32532e0ab6e2ebb249216a537f4514fdeb57ca3708ffd20a093da", kill_on_drop: false }`
[INFO] [stdout] f703375273c32532e0ab6e2ebb249216a537f4514fdeb57ca3708ffd20a093da