[INFO] cloning repository https://github.com/hobofan/extract-references
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hobofan/extract-references" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobofan%2Fextract-references", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobofan%2Fextract-references'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ebc8d272517e0bc07a043fbb79cf819c1e03f92
[INFO] documenting hobofan/extract-references 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%2Fhobofan%2Fextract-references" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobofan/extract-references 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/hobofan/extract-references
[INFO] finished tweaking git repo https://github.com/hobofan/extract-references
[INFO] tweaked toml for git repo https://github.com/hobofan/extract-references written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hobofan/extract-references 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 08171efcae745fd26ec936920e2ee67d555890f36651c2a230fbf728a3145ffc
[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" "08171efcae745fd26ec936920e2ee67d555890f36651c2a230fbf728a3145ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08171efcae745fd26ec936920e2ee67d555890f36651c2a230fbf728a3145ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08171efcae745fd26ec936920e2ee67d555890f36651c2a230fbf728a3145ffc", kill_on_drop: false }`
[INFO] [stdout] 08171efcae745fd26ec936920e2ee67d555890f36651c2a230fbf728a3145ffc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 40bb7ffcc07ee5916dba8325dff3b10fb0238905b7fa4abcfc18539463a863b8
[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" "40bb7ffcc07ee5916dba8325dff3b10fb0238905b7fa4abcfc18539463a863b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking pom v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking postscript v0.11.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking byteorder v1.3.1
[INFO] [stderr]     Checking arrayvec v0.4.10
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking type1-encoding-parser v0.1.0
[INFO] [stderr]     Checking adobe-cmap-parser v0.3.3
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]     Checking lopdf v0.19.0
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking euclid v0.15.6
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking lopdf v0.15.3
[INFO] [stderr]     Checking pdf-extract v0.4.6
[INFO] [stderr]  Documenting extract-references v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.74s
[INFO] running `Command { std: "docker" "inspect" "40bb7ffcc07ee5916dba8325dff3b10fb0238905b7fa4abcfc18539463a863b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40bb7ffcc07ee5916dba8325dff3b10fb0238905b7fa4abcfc18539463a863b8", kill_on_drop: false }`
[INFO] [stdout] 40bb7ffcc07ee5916dba8325dff3b10fb0238905b7fa4abcfc18539463a863b8