[INFO] cloning repository https://github.com/HuQingyang/markdown-img-to-base64
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HuQingyang/markdown-img-to-base64" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuQingyang%2Fmarkdown-img-to-base64", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuQingyang%2Fmarkdown-img-to-base64'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf665090f918e55618e0bc05b1812042f0f6f6a8
[INFO] documenting HuQingyang/markdown-img-to-base64 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%2FHuQingyang%2Fmarkdown-img-to-base64" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HuQingyang/markdown-img-to-base64 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/HuQingyang/markdown-img-to-base64
[INFO] finished tweaking git repo https://github.com/HuQingyang/markdown-img-to-base64
[INFO] tweaked toml for git repo https://github.com/HuQingyang/markdown-img-to-base64 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/HuQingyang/markdown-img-to-base64 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 8f6f9c6f7be0b76610ffeced5b3342a7b0ffaefe504f506b006e2cc26417f8f7
[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" "8f6f9c6f7be0b76610ffeced5b3342a7b0ffaefe504f506b006e2cc26417f8f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f6f9c6f7be0b76610ffeced5b3342a7b0ffaefe504f506b006e2cc26417f8f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6f9c6f7be0b76610ffeced5b3342a7b0ffaefe504f506b006e2cc26417f8f7", kill_on_drop: false }`
[INFO] [stdout] 8f6f9c6f7be0b76610ffeced5b3342a7b0ffaefe504f506b006e2cc26417f8f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 30e9ba64f855bfe0db33283b315b23ed5d1bcb2e8d8e719bc2bc7040cead9710
[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" "30e9ba64f855bfe0db33283b315b23ed5d1bcb2e8d8e719bc2bc7040cead9710", kill_on_drop: false }`
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking base64 v0.4.2
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking ryu v0.2.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking mime v0.3.9
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking libflate v0.1.16
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking tree_magic v0.2.0
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking hyper v0.12.10
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.28
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking image-base64 v0.1.0
[INFO] [stderr]     Checking reqwest v0.9.0
[INFO] [stderr]  Documenting markdown-img-to-base64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.65s
[INFO] running `Command { std: "docker" "inspect" "30e9ba64f855bfe0db33283b315b23ed5d1bcb2e8d8e719bc2bc7040cead9710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e9ba64f855bfe0db33283b315b23ed5d1bcb2e8d8e719bc2bc7040cead9710", kill_on_drop: false }`
[INFO] [stdout] 30e9ba64f855bfe0db33283b315b23ed5d1bcb2e8d8e719bc2bc7040cead9710