[INFO] cloning repository https://github.com/edwardvear/mnist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edwardvear/mnist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwardvear%2Fmnist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwardvear%2Fmnist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81c4cfa103fdb1ecce82668b306ed35530893f94
[INFO] checking edwardvear/mnist against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwardvear%2Fmnist" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/edwardvear/mnist
[INFO] finished tweaking git repo https://github.com/edwardvear/mnist
[INFO] tweaked toml for git repo https://github.com/edwardvear/mnist written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/edwardvear/mnist on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/edwardvear/mnist 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" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c52eedb5f04f783e6cfc37d0bd93c48393105ff43cbf06ca4c1158e3a073d54f
[INFO] running `Command { std: "docker" "start" "-a" "c52eedb5f04f783e6cfc37d0bd93c48393105ff43cbf06ca4c1158e3a073d54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c52eedb5f04f783e6cfc37d0bd93c48393105ff43cbf06ca4c1158e3a073d54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c52eedb5f04f783e6cfc37d0bd93c48393105ff43cbf06ca4c1158e3a073d54f", kill_on_drop: false }`
[INFO] [stdout] c52eedb5f04f783e6cfc37d0bd93c48393105ff43cbf06ca4c1158e3a073d54f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0684f11a610cb65138a9f2cc14abe798169909d49983ef80ee8eb496d0f2365e
[INFO] running `Command { std: "docker" "start" "-a" "0684f11a610cb65138a9f2cc14abe798169909d49983ef80ee8eb496d0f2365e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking weezl v0.1.10
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking imgref v1.11.0
[INFO] [stderr]     Checking bitstream-io v2.6.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking loop9 v0.1.5
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking avif-serialize v0.8.6
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking pxfm v0.1.24
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking bitflags v2.9.4
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking png v0.18.0
[INFO] [stderr]     Checking gif v0.13.3
[INFO] [stderr]     Checking exr v1.73.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking moxcms v0.7.5
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling profiling-procmacros v1.0.17
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling fax_derive v0.2.0
[INFO] [stderr]     Checking profiling v1.0.17
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking v_frame v0.3.9
[INFO] [stderr]     Checking fax v0.2.6
[INFO] [stderr]     Checking av1-grain v0.2.4
[INFO] [stderr]     Checking tiff v0.10.3
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking ravif v0.11.20
[INFO] [stderr]     Checking image v0.25.8
[INFO] [stderr]     Checking mnist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `network::Layer` is more private than the item `network::Network::layers`
[INFO] [stdout]    --> src/network.rs:9:5
[INFO] [stdout]     |
[INFO] [stdout]   9 |     pub layers: Vec<Layer>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^ field `network::Network::layers` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `network::Layer` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/network.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | struct Layer {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Layer` is more private than the item `Network::layers`
[INFO] [stdout]    --> src/network.rs:9:5
[INFO] [stdout]     |
[INFO] [stdout]   9 |     pub layers: Vec<Layer>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^ field `Network::layers` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Layer` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/network.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | struct Layer {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_layers` is never used
[INFO] [stdout]   --> src/network.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Network {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn from_layers(layers: Vec<Layer>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnityActivation` is never constructed
[INFO] [stdout]    --> src/network.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | struct UnityActivation;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/view_image.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     im.save("test.png");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = im.save("test.png");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.53s
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/view_image.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     im.save("test.png");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = im.save("test.png");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0684f11a610cb65138a9f2cc14abe798169909d49983ef80ee8eb496d0f2365e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0684f11a610cb65138a9f2cc14abe798169909d49983ef80ee8eb496d0f2365e", kill_on_drop: false }`
[INFO] [stdout] 0684f11a610cb65138a9f2cc14abe798169909d49983ef80ee8eb496d0f2365e