[INFO] cloning repository https://github.com/bokuweb/lcs-image-diff-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bokuweb/lcs-image-diff-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Flcs-image-diff-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Flcs-image-diff-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d29feda97e6365e4f6d922c2773b3ca2a494b6a0
[INFO] documenting bokuweb/lcs-image-diff-rs 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%2Fbokuweb%2Flcs-image-diff-rs" "/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/bokuweb/lcs-image-diff-rs 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/bokuweb/lcs-image-diff-rs
[INFO] finished tweaking git repo https://github.com/bokuweb/lcs-image-diff-rs
[INFO] tweaked toml for git repo https://github.com/bokuweb/lcs-image-diff-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/bokuweb/lcs-image-diff-rs 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] 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" "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] [stdout] 21394628905a16aa1df112959e8fb65985da579b0c9739d506e5400c967cb017
[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" "21394628905a16aa1df112959e8fb65985da579b0c9739d506e5400c967cb017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21394628905a16aa1df112959e8fb65985da579b0c9739d506e5400c967cb017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21394628905a16aa1df112959e8fb65985da579b0c9739d506e5400c967cb017", kill_on_drop: false }`
[INFO] [stdout] 21394628905a16aa1df112959e8fb65985da579b0c9739d506e5400c967cb017
[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" "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] [stdout] 6c2b9f6301baf2398f88a6647a153cfdb42696cd86c1e8967c4ceb54d587f2bf
[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" "6c2b9f6301baf2398f88a6647a153cfdb42696cd86c1e8967c4ceb54d587f2bf", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `lcs-image-diff` in package `lcs-image-diff v0.1.6 (/opt/rustwide/workdir)` has the same output filename as the lib target `lcs_image_diff` in package `lcs-image-diff v0.1.6 (/opt/rustwide/workdir)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/doc/lcs_image_diff/index.html
[INFO] [stderr] The output filenames should be unique.
[INFO] [stderr] This is a known bug where multiple crates with the same name use
[INFO] [stderr] the same path; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] If this looks unexpected, it may be a bug in Cargo. Please file a bug report at
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/ with as much information as you
[INFO] [stderr] can provide.
[INFO] [stderr] cargo 1.46.0 (149022b1d 2020-07-17) running on `x86_64-unknown-linux-gnu` target `x86_64-unknown-linux-gnu`
[INFO] [stderr] First unit: Unit { pkg: Package { id: PackageId { name: "lcs-image-diff", version: "0.1.6", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { name: "lcs-image-diff", required_features: Some(["binary"]), doc: true, ..: with_path("/opt/rustwide/workdir/src/main.rs", Edition2015) }, profile: Profile { name: "doc", debuginfo: Some(2), debug_assertions: true, overflow_checks: true, ..: default() }, kind: Host, mode: Doc { deps: false }, features: ["all_image_formats", "binary", "default", "futures", "futures-cpupool"] }
[INFO] [stderr] Second unit: Unit { pkg: Package { id: PackageId { name: "lcs-image-diff", version: "0.1.6", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { ..: lib_target("lcs_image_diff", ["lib"], "/opt/rustwide/workdir/src/lib.rs", Edition2015) }, profile: Profile { name: "doc", debuginfo: Some(2), debug_assertions: true, overflow_checks: true, ..: default() }, kind: Host, mode: Doc { deps: false }, features: ["all_image_formats", "binary", "default", "futures", "futures-cpupool"] }
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking lcs-diff v0.1.1
[INFO] [stderr]     Checking inflate v0.4.4
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]     Checking crossbeam-epoch v0.3.0
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking lcs-image-diff v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting lcs-image-diff v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.96s
[INFO] running `Command { std: "docker" "inspect" "6c2b9f6301baf2398f88a6647a153cfdb42696cd86c1e8967c4ceb54d587f2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c2b9f6301baf2398f88a6647a153cfdb42696cd86c1e8967c4ceb54d587f2bf", kill_on_drop: false }`
[INFO] [stdout] 6c2b9f6301baf2398f88a6647a153cfdb42696cd86c1e8967c4ceb54d587f2bf