[INFO] cloning repository https://github.com/Rittyan/deep_learning_from_scratch_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rittyan/deep_learning_from_scratch_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRittyan%2Fdeep_learning_from_scratch_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRittyan%2Fdeep_learning_from_scratch_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8af2946c91313d258e2152b94ca4a9e3aad0df87
[INFO] documenting Rittyan/deep_learning_from_scratch_in_rust against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRittyan%2Fdeep_learning_from_scratch_in_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rittyan/deep_learning_from_scratch_in_rust on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Rittyan/deep_learning_from_scratch_in_rust
[INFO] finished tweaking git repo https://github.com/Rittyan/deep_learning_from_scratch_in_rust
[INFO] tweaked toml for git repo https://github.com/Rittyan/deep_learning_from_scratch_in_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Rittyan/deep_learning_from_scratch_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5bb43bef4dd448420067571cc8fc20c15d4c414f5b0cb29ee8dbcd51942ae2f2
[INFO] running `Command { std: "docker" "start" "-a" "5bb43bef4dd448420067571cc8fc20c15d4c414f5b0cb29ee8dbcd51942ae2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bb43bef4dd448420067571cc8fc20c15d4c414f5b0cb29ee8dbcd51942ae2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bb43bef4dd448420067571cc8fc20c15d4c414f5b0cb29ee8dbcd51942ae2f2", kill_on_drop: false }`
[INFO] [stdout] 5bb43bef4dd448420067571cc8fc20c15d4c414f5b0cb29ee8dbcd51942ae2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 755fa839327f7075b26d6e62e66656b267f1f01b39dc55018202597b68340004
[INFO] running `Command { std: "docker" "start" "-a" "755fa839327f7075b26d6e62e66656b267f1f01b39dc55018202597b68340004", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.57
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking ndarray v0.13.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking ndarray-rand v0.11.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.6
[INFO] [stderr]  Documenting dl_fr_scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `image`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use image::GrayImage;
[INFO] [stdout]    |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `image`
[INFO] [stdout]  --> src/utils.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use image::GrayImage;
[INFO] [stdout]   |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `image`
[INFO] [stdout]   --> src/simple_conv_net.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use image::GrayImage;
[INFO] [stdout]    |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `image`
[INFO] [stdout]  --> src/auto_encoder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use image::GrayImage;
[INFO] [stdout]   |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `image`
[INFO] [stdout]  --> src/vae.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use image::GrayImage;
[INFO] [stdout]   |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `image`
[INFO] [stdout]  --> src/gan.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use image::GrayImage;
[INFO] [stdout]   |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `dl_fr_scratch`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name dl_fr_scratch src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern flate2=/opt/rustwide/target/debug/deps/libflate2-8b0d843c18ac8c3f.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-2235d82883057568.rmeta --extern ndarray_rand=/opt/rustwide/target/debug/deps/libndarray_rand-1474b050ea05a4d6.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-0e447bd37d9a50ec.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-12c737c31e4e25a6.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "755fa839327f7075b26d6e62e66656b267f1f01b39dc55018202597b68340004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "755fa839327f7075b26d6e62e66656b267f1f01b39dc55018202597b68340004", kill_on_drop: false }`
[INFO] [stdout] 755fa839327f7075b26d6e62e66656b267f1f01b39dc55018202597b68340004