[INFO] cloning repository https://github.com/urbanslug/ndarray-to-img
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/urbanslug/ndarray-to-img" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fndarray-to-img", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fndarray-to-img'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f71ff254cfe8c2cc1b5f96e1acf7db8dc167261
[INFO] documenting urbanslug/ndarray-to-img against try#a394c9cd9ec93787f09a7ac445b14cc674a94549 for pr-151918
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fndarray-to-img" "/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/urbanslug/ndarray-to-img
[INFO] finished tweaking git repo https://github.com/urbanslug/ndarray-to-img
[INFO] tweaked toml for git repo https://github.com/urbanslug/ndarray-to-img written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/urbanslug/ndarray-to-img on toolchain a394c9cd9ec93787f09a7ac445b14cc674a94549
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] documenting urbanslug/ndarray-to-img against try#a394c9cd9ec93787f09a7ac445b14cc674a94549 for pr-151918
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fndarray-to-img" "/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/urbanslug/ndarray-to-img
[INFO] finished tweaking git repo https://github.com/urbanslug/ndarray-to-img
[INFO] tweaked toml for git repo https://github.com/urbanslug/ndarray-to-img written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/urbanslug/ndarray-to-img on toolchain a394c9cd9ec93787f09a7ac445b14cc674a94549
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding image v0.23.14 (available: v0.25.9)
[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.17.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "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 bytemuck v1.25.0
[INFO] [stderr]   Downloaded image v0.23.14
[INFO] [stderr]   Downloaded gif v0.11.4
[INFO] [stderr]   Downloaded tiff v0.6.1
[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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef108cfb8e032cee256eeac595227449c8bcee5e29769e91539eca4a7d11cad7
[INFO] running `Command { std: "docker" "start" "-a" "ef108cfb8e032cee256eeac595227449c8bcee5e29769e91539eca4a7d11cad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef108cfb8e032cee256eeac595227449c8bcee5e29769e91539eca4a7d11cad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef108cfb8e032cee256eeac595227449c8bcee5e29769e91539eca4a7d11cad7", kill_on_drop: false }`
[INFO] [stdout] ef108cfb8e032cee256eeac595227449c8bcee5e29769e91539eca4a7d11cad7
[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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d136610d4934b194daafe77548a14a27eee7517f442ed4667f899964d2a5f037
[INFO] running `Command { std: "docker" "start" "-a" "d136610d4934b194daafe77548a14a27eee7517f442ed4667f899964d2a5f037", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking weezl v0.1.12
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking bytemuck v1.25.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]  Documenting ndarray-to-img v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]  --> src/plot.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! For [OptMatrix](self::OptMatrix)
[INFO] [stdout]   |          ---------  ^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]   |          |
[INFO] [stdout]   |          because label contains path that resolves to same destination
[INFO] [stdout]   |
[INFO] [stdout]   = note: when a link's destination is not specified,
[INFO] [stdout]           the label is used to resolve intra-doc links
[INFO] [stdout]   = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]   |
[INFO] [stdout] 5 - //! For [OptMatrix](self::OptMatrix)
[INFO] [stdout] 5 + //! For [OptMatrix]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/plot.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | //! For [Matrix](self::Matrix)
[INFO] [stdout]    |          ------  ^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]    |          |
[INFO] [stdout]    |          because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 10 - //! For [Matrix](self::Matrix)
[INFO] [stdout] 10 + //! For [Matrix]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.49s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/ndarray_to_img/index.html
[INFO] running `Command { std: "docker" "inspect" "d136610d4934b194daafe77548a14a27eee7517f442ed4667f899964d2a5f037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d136610d4934b194daafe77548a14a27eee7517f442ed4667f899964d2a5f037", kill_on_drop: false }`
[INFO] [stdout] d136610d4934b194daafe77548a14a27eee7517f442ed4667f899964d2a5f037
[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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc2f93bd2acd944325f692090f1d8ee9533301062885fe9d4ed1ed88f47b2d46
[INFO] running `Command { std: "docker" "start" "-a" "cc2f93bd2acd944325f692090f1d8ee9533301062885fe9d4ed1ed88f47b2d46", kill_on_drop: false }`
[INFO] [stderr]  Documenting ndarray-to-img v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]  --> src/plot.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! For [OptMatrix](self::OptMatrix)
[INFO] [stdout]   |          ---------  ^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]   |          |
[INFO] [stdout]   |          because label contains path that resolves to same destination
[INFO] [stdout]   |
[INFO] [stdout]   = note: when a link's destination is not specified,
[INFO] [stdout]           the label is used to resolve intra-doc links
[INFO] [stdout]   = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]   |
[INFO] [stdout] 5 - //! For [OptMatrix](self::OptMatrix)
[INFO] [stdout] 5 + //! For [OptMatrix]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/plot.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | //! For [Matrix](self::Matrix)
[INFO] [stdout]    |          ------  ^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]    |          |
[INFO] [stdout]    |          because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 10 - //! For [Matrix](self::Matrix)
[INFO] [stdout] 10 + //! For [Matrix]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/ndarray_to_img/index.html
[INFO] running `Command { std: "docker" "inspect" "cc2f93bd2acd944325f692090f1d8ee9533301062885fe9d4ed1ed88f47b2d46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2f93bd2acd944325f692090f1d8ee9533301062885fe9d4ed1ed88f47b2d46", kill_on_drop: false }`
[INFO] [stdout] cc2f93bd2acd944325f692090f1d8ee9533301062885fe9d4ed1ed88f47b2d46