[INFO] cloning repository https://github.com/mopp/exif_date_syncer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mopp/exif_date_syncer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopp%2Fexif_date_syncer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopp%2Fexif_date_syncer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38895349317b607d35905558f8432605bb3e9045
[INFO] documenting mopp/exif_date_syncer against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopp%2Fexif_date_syncer" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mopp/exif_date_syncer on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mopp/exif_date_syncer
[INFO] finished tweaking git repo https://github.com/mopp/exif_date_syncer
[INFO] tweaked toml for git repo https://github.com/mopp/exif_date_syncer written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/mopp/exif_date_syncer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.15
[INFO] [stderr]   Downloaded filetime v0.1.10
[INFO] [stderr]   Downloaded num-iter v0.1.32
[INFO] [stderr]   Downloaded pkg-config v0.3.9
[INFO] [stderr]   Downloaded rustc-serialize v0.3.22
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] [stderr]   Downloaded time v0.1.36
[INFO] [stderr]   Downloaded redox_syscall v0.1.16
[INFO] [stderr]   Downloaded num-traits v0.1.36
[INFO] [stderr]   Downloaded num-complex v0.1.35
[INFO] [stderr]   Downloaded num-bigint v0.1.35
[INFO] [stderr]   Downloaded num-integer v0.1.32
[INFO] [stderr]   Downloaded num-rational v0.1.35
[INFO] [stderr]   Downloaded num v0.1.36
[INFO] [stderr]   Downloaded libc v0.2.20
[INFO] [stderr]   Downloaded gexiv2-sys v0.6.1
[INFO] [stderr]   Downloaded rexiv2 v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 811bf5787aab8cf7989689858eb6bc359b745145f8a6f28f65292a24d9deb4fa
[INFO] running `Command { std: "docker" "start" "-a" "811bf5787aab8cf7989689858eb6bc359b745145f8a6f28f65292a24d9deb4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "811bf5787aab8cf7989689858eb6bc359b745145f8a6f28f65292a24d9deb4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "811bf5787aab8cf7989689858eb6bc359b745145f8a6f28f65292a24d9deb4fa", kill_on_drop: false }`
[INFO] [stdout] 811bf5787aab8cf7989689858eb6bc359b745145f8a6f28f65292a24d9deb4fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a0451e86531d9c40ca06022c43b72ea366f6529db4651523df59dc84943137a
[INFO] running `Command { std: "docker" "start" "-a" "9a0451e86531d9c40ca06022c43b72ea366f6529db4651523df59dc84943137a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling gexiv2-sys v0.6.1
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking filetime v0.1.10
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking rexiv2 v0.4.1
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]  Documenting exif_date_syncer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.39s
[INFO] running `Command { std: "docker" "inspect" "9a0451e86531d9c40ca06022c43b72ea366f6529db4651523df59dc84943137a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a0451e86531d9c40ca06022c43b72ea366f6529db4651523df59dc84943137a", kill_on_drop: false }`
[INFO] [stdout] 9a0451e86531d9c40ca06022c43b72ea366f6529db4651523df59dc84943137a