[INFO] cloning repository https://github.com/jkama4/mnist_rustlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkama4/mnist_rustlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkama4%2Fmnist_rustlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkama4%2Fmnist_rustlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8bcdc2e2db8b745869585fb1b042885c2dd7016b
[INFO] fixing jkama4/mnist_rustlib against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkama4%2Fmnist_rustlib" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jkama4/mnist_rustlib
[INFO] finished tweaking git repo https://github.com/jkama4/mnist_rustlib
[INFO] tweaked toml for git repo https://github.com/jkama4/mnist_rustlib written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jkama4/mnist_rustlib on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jkama4/mnist_rustlib 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_generator v2.8.5
[INFO] [stderr]   Downloaded pest_derive v2.8.5
[INFO] [stderr]   Downloaded pest_meta v2.8.5
[INFO] [stderr]   Downloaded syn v2.0.113
[INFO] [stderr]   Downloaded ndarray-npy v0.10.0
[INFO] [stderr]   Downloaded libz-rs-sys v0.5.5
[INFO] [stderr]   Downloaded flate2 v1.1.5
[INFO] [stderr]   Downloaded indexmap v2.12.1
[INFO] [stderr]   Downloaded pest v2.8.5
[INFO] [stderr]   Downloaded zip v6.0.0
[INFO] [stderr]   Downloaded portable-atomic v1.13.0
[INFO] [stderr]   Downloaded zlib-rs v0.5.5
[INFO] [stderr]   Downloaded ndarray v0.17.1
[INFO] [stderr]   Downloaded libc v0.2.179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca
[INFO] running `Command { std: "docker" "start" "dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking zlib-rs v0.5.5
[INFO] [stderr]     Checking simd-adler32 v0.3.8
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking hashbrown v0.16.1
[INFO] [stderr]     Checking bumpalo v3.19.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking zopfli v0.8.3
[INFO] [stderr]     Checking indexmap v2.12.1
[INFO] [stderr]    Compiling pest v2.8.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling syn v2.0.113
[INFO] [stderr]     Checking libz-rs-sys v0.5.5
[INFO] [stderr]     Checking ndarray v0.17.1
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]    Compiling pest_meta v2.8.5
[INFO] [stderr]     Checking zip v6.0.0
[INFO] [stderr]    Compiling pest_generator v2.8.5
[INFO] [stderr]    Compiling pest_derive v2.8.5
[INFO] [stderr]     Checking py_literal v0.4.0
[INFO] [stderr]     Checking npyz v0.8.4
[INFO] [stderr]     Checking ndarray-npy v0.10.0
[INFO] [stderr]     Checking mnist_rustlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `itertools`
[INFO] [stdout]  --> src/math.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `itertools`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `itertools`, use `cargo add itertools` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/math.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `itertools`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `itertools`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `itertools`, use `cargo add itertools` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `itertools`
[INFO] [stdout]  --> src/math.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `itertools`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `itertools`, use `cargo add itertools` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mnist_rustlib` (bin "mnist_rustlib" test) due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/math.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `itertools`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `itertools`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `itertools`, use `cargo add itertools` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mnist_rustlib` (bin "mnist_rustlib") due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/math.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[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 import: `std::error::Error`
[INFO] [stdout]  --> src/math.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rand` in this scope
[INFO] [stdout]   --> src/math.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut rng = rand::rng();
[INFO] [stdout]    |                   ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rand` in this scope
[INFO] [stdout]   --> src/math.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut rng = rand::rng();
[INFO] [stdout]    |                   ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for epoch in 0..epochs {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[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`
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let loss: f32 = cnn::cross_entropy(&probabilities, train_target[i] as usize);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_loss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for epoch in 0..epochs {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[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`
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let loss: f32 = cnn::cross_entropy(&probabilities, train_target[i] as usize);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_loss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca", kill_on_drop: false }`
[INFO] [stdout] dce846d44108a85ec05cc71501e98ca97d02f5b58b3046b4e0b7f1401fba96ca
