[INFO] cloning repository https://github.com/Geemili/mdproof
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Geemili/mdproof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeemili%2Fmdproof", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeemili%2Fmdproof'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cbd275d01f9eb25acf04c258ad2aa6878ce9151
[INFO] documenting Geemili/mdproof against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeemili%2Fmdproof" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Geemili/mdproof on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Geemili/mdproof
[INFO] finished tweaking git repo https://github.com/Geemili/mdproof
[INFO] tweaked toml for git repo https://github.com/Geemili/mdproof written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Geemili/mdproof already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.1.0
[INFO] [stderr]   Downloaded structopt-derive v0.2.13
[INFO] [stderr]   Downloaded structopt v0.2.13
[INFO] [stderr]   Downloaded regex v1.0.6
[INFO] [stderr]   Downloaded heck v0.3.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.13
[INFO] [stderr]   Downloaded tiff v0.2.1
[INFO] [stderr]   Downloaded quicli v0.3.1
[INFO] [stderr]   Downloaded pom v1.1.0
[INFO] [stderr]   Downloaded approx v0.3.0
[INFO] [stderr]   Downloaded lopdf v0.17.0
[INFO] [stderr]   Downloaded rusttype v0.7.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.3
[INFO] [stderr]   Downloaded quick-xml v0.13.1
[INFO] [stderr]   Downloaded printpdf v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 864ffb6079d0f42265b20201eb78dc3fec0578af1036e883e06fe738e9031472
[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" "864ffb6079d0f42265b20201eb78dc3fec0578af1036e883e06fe738e9031472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "864ffb6079d0f42265b20201eb78dc3fec0578af1036e883e06fe738e9031472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864ffb6079d0f42265b20201eb78dc3fec0578af1036e883e06fe738e9031472", kill_on_drop: false }`
[INFO] [stdout] 864ffb6079d0f42265b20201eb78dc3fec0578af1036e883e06fe738e9031472
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f463b743bc8a5dd9d98d4fe64473d749e0745efe619a8df98561d595f244adce
[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" "f463b743bc8a5dd9d98d4fe64473d749e0745efe619a8df98561d595f244adce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling encoding_rs v0.8.13
[INFO] [stderr]     Checking pom v1.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking stb_truetype v0.2.4
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking approx v0.3.0
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking rusttype v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking lopdf v0.17.0
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]     Checking quick-xml v0.13.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking structopt v0.2.13
[INFO] [stderr]     Checking clap-verbosity-flag v0.1.0
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking quicli v0.3.1
[INFO] [stderr]     Checking printpdf v0.2.10
[INFO] [stderr]  Documenting mdproof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "f463b743bc8a5dd9d98d4fe64473d749e0745efe619a8df98561d595f244adce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f463b743bc8a5dd9d98d4fe64473d749e0745efe619a8df98561d595f244adce", kill_on_drop: false }`
[INFO] [stdout] f463b743bc8a5dd9d98d4fe64473d749e0745efe619a8df98561d595f244adce