[INFO] fetching crate unda 0.2.2...
[INFO] building unda-0.2.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate unda 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate unda 0.2.2
[INFO] finished tweaking crates.io crate unda 0.2.2
[INFO] tweaked toml for crates.io crate unda 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unda 0.2.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unda 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79a38ceb48c5f83c7dc28146317231ae68aceae5e7ab129c25663084f990fca4
[INFO] running `Command { std: "docker" "start" "-a" "79a38ceb48c5f83c7dc28146317231ae68aceae5e7ab129c25663084f990fca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79a38ceb48c5f83c7dc28146317231ae68aceae5e7ab129c25663084f990fca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79a38ceb48c5f83c7dc28146317231ae68aceae5e7ab129c25663084f990fca4", kill_on_drop: false }`
[INFO] [stdout] 79a38ceb48c5f83c7dc28146317231ae68aceae5e7ab129c25663084f990fca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d95c178070a8adfb05872f2552051c3ca816e3bc73cc2f1b47b5c86f61eed4d
[INFO] running `Command { std: "docker" "start" "-a" "9d95c178070a8adfb05872f2552051c3ca816e3bc73cc2f1b47b5c86f61eed4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling inventory v0.3.13
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling itertools v0.12.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_seeder v0.2.3
[INFO] [stderr]    Compiling rand_pcg v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling typetag-impl v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling erased-serde v0.4.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling typetag v0.2.14
[INFO] [stderr]    Compiling unda v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/core/layer/methods/activations.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_function(&self) -> Option<Activation>{
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_function(&self) -> Option<Activation<'_>>{
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Strictest` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/util/mnist.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         stdout().flush(); print!("[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let _ = stdout().flush(); print!("[");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/util/mnist.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 stdout().flush(); print!("#");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let _ = stdout().flush(); print!("#");
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.95s
[INFO] running `Command { std: "docker" "inspect" "9d95c178070a8adfb05872f2552051c3ca816e3bc73cc2f1b47b5c86f61eed4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d95c178070a8adfb05872f2552051c3ca816e3bc73cc2f1b47b5c86f61eed4d", kill_on_drop: false }`
[INFO] [stdout] 9d95c178070a8adfb05872f2552051c3ca816e3bc73cc2f1b47b5c86f61eed4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caf945ed4cbfdc0b97a226486ebdfc7c23d4ae78bfdb871c8677abe246eb5cb7
[INFO] running `Command { std: "docker" "start" "-a" "caf945ed4cbfdc0b97a226486ebdfc7c23d4ae78bfdb871c8677abe246eb5cb7", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/core/layer/methods/activations.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_function(&self) -> Option<Activation>{
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_function(&self) -> Option<Activation<'_>>{
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Strictest` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/util/mnist.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         stdout().flush(); print!("[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let _ = stdout().flush(); print!("[");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/util/mnist.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 stdout().flush(); print!("#");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let _ = stdout().flush(); print!("#");
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unda v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Serialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Strictest` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/core/layer/methods/activations.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_function(&self) -> Option<Activation>{
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_function(&self) -> Option<Activation<'_>>{
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/core/data/matrix.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         mat_a + &mat_b;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 422 |         let _ = mat_a + &mat_b;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/core/data/matrix.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         mat_a * &mat_b;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 457 |         let _ = mat_a * &mat_b;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/core/data/matrix.rs:464:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |         mat_a * &mat_b;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 464 |         let _ = mat_a * &mat_b;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Send` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/core/layer/layers.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[typetag::serde]
[INFO] [stdout]    | -^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `Box` is not local
[INFO] [stdout]    | `Sync` is not local
[INFO] [stdout]    | `Deserialize` is not local
[INFO] [stdout]    | move the `impl` block outside of this constant `_Layer_registry`
[INFO] [stdout] 11 | pub trait Layer: Send + Sync{
[INFO] [stdout]    |           ----- `Layer` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the attribute macro `typetag::serde` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the attribute macro `typetag::serde` may come from an old version of the `typetag_impl` crate, try updating your dependency with `cargo update -p typetag_impl`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the attribute macro `typetag::serde` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/util/mnist.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         stdout().flush(); print!("[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let _ = stdout().flush(); print!("[");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/util/mnist.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 stdout().flush(); print!("#");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let _ = stdout().flush(); print!("#");
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "caf945ed4cbfdc0b97a226486ebdfc7c23d4ae78bfdb871c8677abe246eb5cb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caf945ed4cbfdc0b97a226486ebdfc7c23d4ae78bfdb871c8677abe246eb5cb7", kill_on_drop: false }`
[INFO] [stdout] caf945ed4cbfdc0b97a226486ebdfc7c23d4ae78bfdb871c8677abe246eb5cb7