[INFO] cloning repository https://github.com/corka149/simple_neural_network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/corka149/simple_neural_network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorka149%2Fsimple_neural_network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorka149%2Fsimple_neural_network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a84a0fbfb7483b1e8f59e1e7e0278565251d61ca
[INFO] checking corka149/simple_neural_network against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorka149%2Fsimple_neural_network" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/corka149/simple_neural_network on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/corka149/simple_neural_network
[INFO] finished tweaking git repo https://github.com/corka149/simple_neural_network
[INFO] tweaked toml for git repo https://github.com/corka149/simple_neural_network written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/corka149/simple_neural_network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 227fcb9d1dde6fd929bb947cfad84d11f46a1ca3bae6509c3fd00d55bed4594d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "227fcb9d1dde6fd929bb947cfad84d11f46a1ca3bae6509c3fd00d55bed4594d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "227fcb9d1dde6fd929bb947cfad84d11f46a1ca3bae6509c3fd00d55bed4594d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227fcb9d1dde6fd929bb947cfad84d11f46a1ca3bae6509c3fd00d55bed4594d", kill_on_drop: false }`
[INFO] [stdout] 227fcb9d1dde6fd929bb947cfad84d11f46a1ca3bae6509c3fd00d55bed4594d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56b1e20c35bda5023aac60754ea4ea264f77d248a66205b78b3608d0a525ff38
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "56b1e20c35bda5023aac60754ea4ea264f77d248a66205b78b3608d0a525ff38", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking neural_network v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/util.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     (1.0 / (1.0 + E.powf(-x)))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matrix/error.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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] error[E0425]: cannot find function `transpose_matrix` in this scope
[INFO] [stdout]    --> src/matrix/math.rs:144:21
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let new_a = transpose_matrix(&a);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/util.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     (1.0 / (1.0 + E.powf(-x)))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/matrix/math.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matrix/error.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `input_nodes` on type `NeuralNetwork<[closure@src/lib.rs:134:51: 134:62]>`
[INFO] [stdout]    --> src/lib.rs:136:23
[INFO] [stdout]     |
[INFO] [stdout] 136 |         assert_eq!(nn.input_nodes, 3);
[INFO] [stdout]     |                       ^^^^^^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `learning_rate`, `activation_function`, `wih`, `who`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `hidden_nodes` on type `NeuralNetwork<[closure@src/lib.rs:134:51: 134:62]>`
[INFO] [stdout]    --> src/lib.rs:137:23
[INFO] [stdout]     |
[INFO] [stdout] 137 |         assert_eq!(nn.hidden_nodes, 3);
[INFO] [stdout]     |                       ^^^^^^^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `learning_rate`, `activation_function`, `wih`, `who`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `output_nodes` on type `NeuralNetwork<[closure@src/lib.rs:134:51: 134:62]>`
[INFO] [stdout]    --> src/lib.rs:138:23
[INFO] [stdout]     |
[INFO] [stdout] 138 |         assert_eq!(nn.output_nodes, 3);
[INFO] [stdout]     |                       ^^^^^^^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `learning_rate`, `activation_function`, `wih`, `who`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `len` found for struct `matrix::Matrix` in the current scope
[INFO] [stdout]    --> src/matrix/mod.rs:155:24
[INFO] [stdout]     |
[INFO] [stdout] 6   | pub struct Matrix {
[INFO] [stdout]     | ----------------- method `len` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 155 |         assert_eq!(vec.len(), 4);
[INFO] [stdout]     |                        ^^^ method not found in `matrix::Matrix`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `len`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ExactSizeIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `matrix::Matrix`
[INFO] [stdout]    --> src/matrix/mod.rs:156:20
[INFO] [stdout]     |
[INFO] [stdout] 156 |         assert_eq!(vec[0].len(), 3);
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599, E0608, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neural_network` due to 7 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "56b1e20c35bda5023aac60754ea4ea264f77d248a66205b78b3608d0a525ff38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56b1e20c35bda5023aac60754ea4ea264f77d248a66205b78b3608d0a525ff38", kill_on_drop: false }`
[INFO] [stdout] 56b1e20c35bda5023aac60754ea4ea264f77d248a66205b78b3608d0a525ff38