[INFO] cloning repository https://github.com/emgyrz/math_expr_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emgyrz/math_expr_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femgyrz%2Fmath_expr_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femgyrz%2Fmath_expr_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08db438dd8ca7f5602cf89a274a273e457c6e361
[INFO] documenting emgyrz/math_expr_parser 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%2Femgyrz%2Fmath_expr_parser" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emgyrz/math_expr_parser 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/emgyrz/math_expr_parser
[INFO] finished tweaking git repo https://github.com/emgyrz/math_expr_parser
[INFO] tweaked toml for git repo https://github.com/emgyrz/math_expr_parser written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/emgyrz/math_expr_parser 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] c71f25b852ead78edf0773c0b9e92e5b2b4faf8cd5fed66031f268da3087193f
[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" "c71f25b852ead78edf0773c0b9e92e5b2b4faf8cd5fed66031f268da3087193f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c71f25b852ead78edf0773c0b9e92e5b2b4faf8cd5fed66031f268da3087193f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c71f25b852ead78edf0773c0b9e92e5b2b4faf8cd5fed66031f268da3087193f", kill_on_drop: false }`
[INFO] [stdout] c71f25b852ead78edf0773c0b9e92e5b2b4faf8cd5fed66031f268da3087193f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35f45f76096889332bfd33352081007f9ffa8161b5a9c8208f3503062c35d624
[INFO] running `Command { std: "docker" "start" "-a" "35f45f76096889332bfd33352081007f9ffa8161b5a9c8208f3503062c35d624", kill_on_drop: false }`
[INFO] [stderr]  Documenting calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "35f45f76096889332bfd33352081007f9ffa8161b5a9c8208f3503062c35d624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35f45f76096889332bfd33352081007f9ffa8161b5a9c8208f3503062c35d624", kill_on_drop: false }`
[INFO] [stdout] 35f45f76096889332bfd33352081007f9ffa8161b5a9c8208f3503062c35d624