[INFO] fetching crate rust-lstm 0.6.0...
[INFO] building rust-lstm-0.6.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate rust-lstm 0.6.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rust-lstm 0.6.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rust-lstm 0.6.0
[INFO] tweaked toml for crates.io crate rust-lstm 0.6.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-lstm 0.6.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-lstm 0.6.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded matrixmultiply v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18c0d3e84433d1822cd9988cc28040e19fad85c1f66bc46a3165fe5aeaeced20
[INFO] running `Command { std: "docker" "start" "-a" "18c0d3e84433d1822cd9988cc28040e19fad85c1f66bc46a3165fe5aeaeced20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18c0d3e84433d1822cd9988cc28040e19fad85c1f66bc46a3165fe5aeaeced20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c0d3e84433d1822cd9988cc28040e19fad85c1f66bc46a3165fe5aeaeced20", kill_on_drop: false }`
[INFO] [stdout] 18c0d3e84433d1822cd9988cc28040e19fad85c1f66bc46a3165fe5aeaeced20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af45122eba70727c4295ef60be37989bb34ab1d9419741910bfc6f86055994b6
[INFO] running `Command { std: "docker" "start" "-a" "af45122eba70727c4295ef60be37989bb34ab1d9419741910bfc6f86055994b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.102
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling ndarray-rand v0.14.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling rust-lstm v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.48s
[INFO] running `Command { std: "docker" "inspect" "af45122eba70727c4295ef60be37989bb34ab1d9419741910bfc6f86055994b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af45122eba70727c4295ef60be37989bb34ab1d9419741910bfc6f86055994b6", kill_on_drop: false }`
[INFO] [stdout] af45122eba70727c4295ef60be37989bb34ab1d9419741910bfc6f86055994b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8be1056d26345e621baabae038fb10867fbaedb5473da43ab8830f6573c2e52b
[INFO] running `Command { std: "docker" "start" "-a" "8be1056d26345e621baabae038fb10867fbaedb5473da43ab8830f6573c2e52b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling tempfile v3.12.0
[INFO] [stderr]    Compiling rust-lstm v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Adam` and `MSELoss`
[INFO] [stdout]  --> examples/early_stopping_example.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     MSELoss, Adam
[INFO] [stdout]   |     ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trainer`
[INFO] [stdout]    --> examples/text_generation_advanced.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let trainer = match &self.trainer {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trainer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> examples/text_generation_advanced.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |             let inputs: Vec<Array2<f64>> = input_chars.iter()
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temperature`
[INFO] [stdout]    --> examples/text_generation_advanced.rs:235:56
[INFO] [stdout]     |
[INFO] [stdout] 235 |     fn generate_text(&self, seed: &str, length: usize, temperature: f64) -> String {
[INFO] [stdout]     |                                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temperature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/text_generation_advanced.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let mut generated = seed.to_string();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `idx_to_char` and `vocab_size` are never read
[INFO] [stdout]   --> examples/text_generation_advanced.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct CharacterLSTM {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     idx_to_char: HashMap<usize, char>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 14 |     vocab_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `embedding_to_char`, `sample_char_with_temperature`, and `project_to_embedding` are never used
[INFO] [stdout]    --> examples/text_generation_advanced.rs:73:8
[INFO] [stdout]     |
[INFO] [stdout]  19 | impl CharacterLSTM {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  73 |     fn embedding_to_char(&self, embedding: &Array2<f64>) -> char {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn sample_char_with_temperature(&self, embedding: &Array2<f64>, temperature: f64) -> char {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 269 |     fn project_to_embedding(&self, lstm_output: &Array2<f64>) -> Array2<f64> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `network`
[INFO] [stdout]    --> examples/learning_rate_scheduling.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let network = LSTMNetwork::new(1, 10, 2);
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_network`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loss_function`
[INFO] [stdout]    --> examples/learning_rate_scheduling.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let loss_function = MSELoss;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loss_function`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `train_data`
[INFO] [stdout]    --> examples/learning_rate_scheduling.rs:141:30
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn reduce_on_plateau_example(train_data: &[(Vec<Array2<f64>>, Vec<Array2<f64>>)], 
[INFO] [stdout]     |                              ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_train_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val_data`
[INFO] [stdout]    --> examples/learning_rate_scheduling.rs:142:29
[INFO] [stdout]     |
[INFO] [stdout] 142 | ...                   val_data: &[(Vec<Array2<f64>>, Vec<Array2<f64>>)]) {
[INFO] [stdout]     |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_val_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> tests/early_stopping_test.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |     assert!(final_metrics.epoch >= 0, "Training should have run at least one epoch");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> tests/early_stopping_test.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |     assert!(final_metrics.epoch >= 0, "Training should have run with train loss monitoring");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> tests/early_stopping_test.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     assert!(final_metrics.epoch >= 0, "Scheduled trainer should support early stopping");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> tests/early_stopping_test.rs:257:13
[INFO] [stdout]     |
[INFO] [stdout] 257 |     assert!(final_metrics.epoch >= 0, "Batch trainer should support early stopping");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.06s
[INFO] running `Command { std: "docker" "inspect" "8be1056d26345e621baabae038fb10867fbaedb5473da43ab8830f6573c2e52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be1056d26345e621baabae038fb10867fbaedb5473da43ab8830f6573c2e52b", kill_on_drop: false }`
[INFO] [stdout] 8be1056d26345e621baabae038fb10867fbaedb5473da43ab8830f6573c2e52b
