[INFO] cloning repository https://github.com/zuhairm2001/rust_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/zuhairm2001/rust_neural_network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzuhairm2001%2Frust_neural_network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzuhairm2001%2Frust_neural_network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97be94d0e3f1175d341c8072d68e0c25c774e9e9
[INFO] checking zuhairm2001/rust_neural_network against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzuhairm2001%2Frust_neural_network" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zuhairm2001/rust_neural_network
[INFO] finished tweaking git repo https://github.com/zuhairm2001/rust_neural_network
[INFO] tweaked toml for git repo https://github.com/zuhairm2001/rust_neural_network written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zuhairm2001/rust_neural_network on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zuhairm2001/rust_neural_network 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" "+94e848735e78b58442e0b82e9c60f8f430840389" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded portable-atomic v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab6d08a3c48b4b13dfd4dd581a946624685cb2d57abc7ac77d92ceb5d8d1b317
[INFO] running `Command { std: "docker" "start" "-a" "ab6d08a3c48b4b13dfd4dd581a946624685cb2d57abc7ac77d92ceb5d8d1b317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab6d08a3c48b4b13dfd4dd581a946624685cb2d57abc7ac77d92ceb5d8d1b317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab6d08a3c48b4b13dfd4dd581a946624685cb2d57abc7ac77d92ceb5d8d1b317", kill_on_drop: false }`
[INFO] [stdout] ab6d08a3c48b4b13dfd4dd581a946624685cb2d57abc7ac77d92ceb5d8d1b317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4979c288b3ffa82b12d20fb633633071401a25e622d4b3bda4c9739db65da5c
[INFO] running `Command { std: "docker" "start" "-a" "a4979c288b3ffa82b12d20fb633633071401a25e622d4b3bda4c9739db65da5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking rust_neural_network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `byteorder`
[INFO] [stdout]  --> src/mnist_loader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::{BigEndian, ReadBytesExt};
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `byteorder`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `byteorder`, use `cargo add byteorder` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/mnist_loader.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::Path;
[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 imports: `load_mnist`, `load_test_data`, and `load_training_data`
[INFO] [stdout]  --> src/main.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mnist_loader::{load_mnist, load_test_data, load_training_data};
[INFO] [stdout]   |                    ^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `byteorder`
[INFO] [stdout]  --> src/mnist_loader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::{BigEndian, ReadBytesExt};
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `byteorder`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `byteorder`, use `cargo add byteorder` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let magic_number = reader.read_u32::<BigEndian>()?;
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/mnist_loader.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::Path;
[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 imports: `load_mnist`, `load_test_data`, and `load_training_data`
[INFO] [stdout]  --> src/main.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mnist_loader::{load_mnist, load_test_data, load_training_data};
[INFO] [stdout]   |                    ^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let num_images = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:40:27
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let num_rows = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let num_cols = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:63:31
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let magic_number = reader.read_u32::<BigEndian>()?;
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let magic_number = reader.read_u32::<BigEndian>()?;
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let num_labels = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let num_images = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:40:27
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let num_rows = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let num_cols = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:63:31
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let magic_number = reader.read_u32::<BigEndian>()?;
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_neural_network` (bin "rust_neural_network" test) due to 7 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `read_u32` found for struct `BufReader<R>` in the current scope
[INFO] [stdout]   --> src/mnist_loader.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let num_labels = reader.read_u32::<BigEndian>()? as usize;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:813:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_neural_network` (bin "rust_neural_network") due to 7 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a4979c288b3ffa82b12d20fb633633071401a25e622d4b3bda4c9739db65da5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4979c288b3ffa82b12d20fb633633071401a25e622d4b3bda4c9739db65da5c", kill_on_drop: false }`
[INFO] [stdout] a4979c288b3ffa82b12d20fb633633071401a25e622d4b3bda4c9739db65da5c
