[INFO] cloning repository https://github.com/kirjavascript/duplex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kirjavascript/duplex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirjavascript%2Fduplex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirjavascript%2Fduplex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a2a4849ec0a3779a7051909c6c627c5845d3fd3
[INFO] documenting kirjavascript/duplex 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%2Fkirjavascript%2Fduplex" "/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/kirjavascript/duplex 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/kirjavascript/duplex
[INFO] finished tweaking git repo https://github.com/kirjavascript/duplex
[INFO] tweaked toml for git repo https://github.com/kirjavascript/duplex written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kirjavascript/duplex 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-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] ae5f8bac10fa86f6af7df3a48a424a9a6833288372a0043c13418f3c7c57b162
[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" "ae5f8bac10fa86f6af7df3a48a424a9a6833288372a0043c13418f3c7c57b162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae5f8bac10fa86f6af7df3a48a424a9a6833288372a0043c13418f3c7c57b162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5f8bac10fa86f6af7df3a48a424a9a6833288372a0043c13418f3c7c57b162", kill_on_drop: false }`
[INFO] [stdout] ae5f8bac10fa86f6af7df3a48a424a9a6833288372a0043c13418f3c7c57b162
[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] 453d2be5108da872b0fdc3ea6e997e37b25c7467ec6c9c63e6f0bc683c017759
[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" "453d2be5108da872b0fdc3ea6e997e37b25c7467ec6c9c63e6f0bc683c017759", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]  Documenting duplex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.24s
[INFO] running `Command { std: "docker" "inspect" "453d2be5108da872b0fdc3ea6e997e37b25c7467ec6c9c63e6f0bc683c017759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "453d2be5108da872b0fdc3ea6e997e37b25c7467ec6c9c63e6f0bc683c017759", kill_on_drop: false }`
[INFO] [stdout] 453d2be5108da872b0fdc3ea6e997e37b25c7467ec6c9c63e6f0bc683c017759