[INFO] fetching crate neural_network 0.1.3...
[INFO] testing neural_network-0.1.3 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate neural_network 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate neural_network 0.1.3
[INFO] finished tweaking crates.io crate neural_network 0.1.3
[INFO] tweaked toml for crates.io crate neural_network 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate neural_network 0.1.3 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3efb1d503a864fe549381320a9d51cb73144c686a5be29be0fd23aa28be5d39
[INFO] running `Command { std: "docker" "start" "-a" "f3efb1d503a864fe549381320a9d51cb73144c686a5be29be0fd23aa28be5d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3efb1d503a864fe549381320a9d51cb73144c686a5be29be0fd23aa28be5d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3efb1d503a864fe549381320a9d51cb73144c686a5be29be0fd23aa28be5d39", kill_on_drop: false }`
[INFO] [stdout] f3efb1d503a864fe549381320a9d51cb73144c686a5be29be0fd23aa28be5d39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59bb5e208ad3f701511dc0f80c838f458ce4510b91acef9c1a18f96d824c0366
[INFO] running `Command { std: "docker" "start" "-a" "59bb5e208ad3f701511dc0f80c838f458ce4510b91acef9c1a18f96d824c0366", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling fast_io v1.2.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling neural_network v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub hidden_activation: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub output_activation: fn(f64) -> f64
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/back_prop/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(PartialEq, Debug)]
[INFO] [stdout]    |          --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub hidden_derivative: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/back_prop/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(PartialEq, Debug)]
[INFO] [stdout]    |          --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub output_derivative: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "59bb5e208ad3f701511dc0f80c838f458ce4510b91acef9c1a18f96d824c0366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59bb5e208ad3f701511dc0f80c838f458ce4510b91acef9c1a18f96d824c0366", kill_on_drop: false }`
[INFO] [stdout] 59bb5e208ad3f701511dc0f80c838f458ce4510b91acef9c1a18f96d824c0366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 803f2111948407274277bfff9e01e7db587798e8f1812dcd1acf9d9c31422753
[INFO] running `Command { std: "docker" "start" "-a" "803f2111948407274277bfff9e01e7db587798e8f1812dcd1acf9d9c31422753", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling neural_network v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub hidden_activation: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub output_activation: fn(f64) -> f64
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/back_prop/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(PartialEq, Debug)]
[INFO] [stdout]    |          --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub hidden_derivative: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/back_prop/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(PartialEq, Debug)]
[INFO] [stdout]    |          --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub output_derivative: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub hidden_activation: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub output_activation: fn(f64) -> f64
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/back_prop/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(PartialEq, Debug)]
[INFO] [stdout]    |          --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub hidden_derivative: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/nn/back_prop/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(PartialEq, Debug)]
[INFO] [stdout]    |          --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub output_derivative: fn(f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "803f2111948407274277bfff9e01e7db587798e8f1812dcd1acf9d9c31422753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803f2111948407274277bfff9e01e7db587798e8f1812dcd1acf9d9c31422753", kill_on_drop: false }`
[INFO] [stdout] 803f2111948407274277bfff9e01e7db587798e8f1812dcd1acf9d9c31422753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9068176de87a2ef5026bf09aeaf5587c2cfb923eb289ac4ecf3f0f2ef2f5777
[INFO] running `Command { std: "docker" "start" "-a" "e9068176de87a2ef5026bf09aeaf5587c2cfb923eb289ac4ecf3f0f2ef2f5777", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/nn/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stderr]    |                 --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub hidden_activation: fn(f64) -> f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/nn/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[derive(Clone, PartialEq, Debug)]
[INFO] [stderr]    |                 --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 18 |     pub output_activation: fn(f64) -> f64
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr] 
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/nn/back_prop/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[derive(PartialEq, Debug)]
[INFO] [stderr]    |          --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub hidden_derivative: fn(f64) -> f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr] 
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/nn/back_prop/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[derive(PartialEq, Debug)]
[INFO] [stderr]    |          --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub output_derivative: fn(f64) -> f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `neural_network` (lib) generated 4 warnings
[INFO] [stderr] warning: `neural_network` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/neural_network-51a90b33c053df8a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::back_prop_works ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::back_prop_works stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::back_prop_works' (25) panicked at src/lib.rs:55:47:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6483e2710f72 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6483e2710f72 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6483e2710f72 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6483e2710f72 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6483e27213bf - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6483e27213bf - core::fmt::write::h8a63064c67176fd8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6483e26de693 - std::io::default_write_fmt::hd4797e693c0ec256
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6483e26de693 - std::io::Write::write_fmt::h791e240ad2720c99
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6483e26ea782 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6483e26ef27f - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6483e26ef111 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x6483e26a5c1e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f5a16438cee2b4e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9
[INFO] [stdout]   12:     0x6483e26a5c1e - test::test_main_with_exit_callback::{{closure}}::h9214498cef9aafc5
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6483e26ef88f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb18da3e68df7464
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9
[INFO] [stdout]   14:     0x6483e26ef88f - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x6483e26ef6ea - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x6483e26ea8b9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6483e26d2e3d - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x6483e2729060 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6483e27286e6 - core::result::unwrap_failed::he81173b5792ad6b0
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x6483e267dcd3 - core::result::Result<T,E>::unwrap::h0fc5a2f356c3dcfd
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x6483e267dcd3 - neural_network::tests::back_prop_works::hbd15abc84db06d86
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:55:47
[INFO] [stdout]   22:     0x6483e267e467 - neural_network::tests::back_prop_works::{{closure}}::h8206d276227a32c5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:13:25
[INFO] [stdout]   23:     0x6483e2676d96 - core::ops::function::FnOnce::call_once::h636f721ea4735ce5
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6483e26a5a6b - core::ops::function::FnOnce::call_once::h43f43c5185cf39c2
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6483e26a5a6b - test::__rust_begin_short_backtrace::hc4fa634eb2764bdc
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x6483e26ba088 - test::run_test_in_process::{{closure}}::h9f4b799a5211b72a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x6483e26ba088 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha572bf7dc5230a8f
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x6483e26ba088 - std::panicking::catch_unwind::do_call::hfd6ff51f25dd177b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x6483e26ba088 - std::panicking::catch_unwind::h8609b446221def5f
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x6483e26ba088 - std::panic::catch_unwind::h362f73cc48531e26
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6483e26ba088 - test::run_test_in_process::hf52fd21d696aae67
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x6483e26ba088 - test::run_test::{{closure}}::h7e780b8354e6d007
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x6483e2692e54 - test::run_test::{{closure}}::hdc2695f2276aad3e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x6483e2692e54 - std::sys::backtrace::__rust_begin_short_backtrace::h2555b2113ed90fc9
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x6483e269678a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h99800d480987dfb6
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x6483e269678a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hbbb69b5294b2221b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x6483e269678a - std::panicking::catch_unwind::do_call::h495689350c27df20
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x6483e269678a - std::panicking::catch_unwind::hf22437c51d1b3740
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x6483e269678a - std::panic::catch_unwind::habda1a57de8231f8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6483e269678a - std::thread::Builder::spawn_unchecked_::{{closure}}::h5833d8dda8c7e80b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x6483e269678a - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2910283a5058402
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x6483e26e5baf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he4d85cb537521972
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2005:9
[INFO] [stdout]   43:     0x6483e26e5baf - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x7e58417c7aa4 - <unknown>
[INFO] [stdout]   45:     0x7e5841854a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::back_prop_works
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "e9068176de87a2ef5026bf09aeaf5587c2cfb923eb289ac4ecf3f0f2ef2f5777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9068176de87a2ef5026bf09aeaf5587c2cfb923eb289ac4ecf3f0f2ef2f5777", kill_on_drop: false }`
[INFO] [stdout] e9068176de87a2ef5026bf09aeaf5587c2cfb923eb289ac4ecf3f0f2ef2f5777
