[INFO] cloning repository https://github.com/ronniesong0809/rust_helloworld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ronniesong0809/rust_helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fronniesong0809%2Frust_helloworld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fronniesong0809%2Frust_helloworld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afd6476e444cf2764d3eb8106130b7ab17b5fb57
[INFO] documenting ronniesong0809/rust_helloworld 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%2Fronniesong0809%2Frust_helloworld" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ronniesong0809/rust_helloworld 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/ronniesong0809/rust_helloworld
[INFO] finished tweaking git repo https://github.com/ronniesong0809/rust_helloworld
[INFO] tweaked toml for git repo https://github.com/ronniesong0809/rust_helloworld written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ronniesong0809/rust_helloworld 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] cb96107393e39450da79cd1a8e07f49b66e707069ef71e4c388d6d51d2253186
[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" "cb96107393e39450da79cd1a8e07f49b66e707069ef71e4c388d6d51d2253186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb96107393e39450da79cd1a8e07f49b66e707069ef71e4c388d6d51d2253186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb96107393e39450da79cd1a8e07f49b66e707069ef71e4c388d6d51d2253186", kill_on_drop: false }`
[INFO] [stdout] cb96107393e39450da79cd1a8e07f49b66e707069ef71e4c388d6d51d2253186
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 72c458f00ea02ba4e19e47846d37965fd63fb7948902ca88b5618ab9a0c0d26a
[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" "72c458f00ea02ba4e19e47846d37965fd63fb7948902ca88b5618ab9a0c0d26a", kill_on_drop: false }`
[INFO] [stderr]  Documenting gcd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "72c458f00ea02ba4e19e47846d37965fd63fb7948902ca88b5618ab9a0c0d26a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c458f00ea02ba4e19e47846d37965fd63fb7948902ca88b5618ab9a0c0d26a", kill_on_drop: false }`
[INFO] [stdout] 72c458f00ea02ba4e19e47846d37965fd63fb7948902ca88b5618ab9a0c0d26a