[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 696eb324ed8b3fdf301316b98fbfc70e43a1d8c7
[INFO] documenting Rittyan/deep_learning_from_scratch_in_rust against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[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-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rittyan/deep_learning_from_scratch_in_rust on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-6/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74a05f5aa8e512c8e55d241dd865f79a26b19b0fb5832a98513a3969a1474c6a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "74a05f5aa8e512c8e55d241dd865f79a26b19b0fb5832a98513a3969a1474c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74a05f5aa8e512c8e55d241dd865f79a26b19b0fb5832a98513a3969a1474c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a05f5aa8e512c8e55d241dd865f79a26b19b0fb5832a98513a3969a1474c6a", kill_on_drop: false }`
[INFO] [stdout] 74a05f5aa8e512c8e55d241dd865f79a26b19b0fb5832a98513a3969a1474c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a93d5b1cb7a5f76f6000496e96771f58f47e5bdd9bbb3efffeba8a682b0b668e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a93d5b1cb7a5f76f6000496e96771f58f47e5bdd9bbb3efffeba8a682b0b668e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking base64 v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking matrixmultiply v0.2.3
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[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.1.14
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[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling openssl-sys v0.9.57
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[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
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[INFO] [stderr]     Checking hyper-tls v0.4.1
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[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: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 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-e11ddeeef24761c4.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-65ffcc6770a410e1.rmeta --extern ndarray_rand=/opt/rustwide/target/debug/deps/libndarray_rand-a6377291f258447b.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-dca3e1f9dba89e0b.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-9cb63f20ffe9c06b.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "a93d5b1cb7a5f76f6000496e96771f58f47e5bdd9bbb3efffeba8a682b0b668e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a93d5b1cb7a5f76f6000496e96771f58f47e5bdd9bbb3efffeba8a682b0b668e", kill_on_drop: false }`
[INFO] [stdout] a93d5b1cb7a5f76f6000496e96771f58f47e5bdd9bbb3efffeba8a682b0b668e