[INFO] cloning repository https://github.com/BogdanFloris/leetcode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BogdanFloris/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBogdanFloris%2Fleetcode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBogdanFloris%2Fleetcode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1419f9de1b86c3b5dd8b74ca40652f745c6c1f55
[INFO] documenting BogdanFloris/leetcode-rust against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBogdanFloris%2Fleetcode-rust" "/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/BogdanFloris/leetcode-rust on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BogdanFloris/leetcode-rust
[INFO] finished tweaking git repo https://github.com/BogdanFloris/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/BogdanFloris/leetcode-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/BogdanFloris/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", 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] bb9d30926d37b3c9e392f3eb5ddd8b3ff3d2761c0d00487eeb7d80bc3fadf9dd
[INFO] running `Command { std: "docker" "start" "-a" "bb9d30926d37b3c9e392f3eb5ddd8b3ff3d2761c0d00487eeb7d80bc3fadf9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb9d30926d37b3c9e392f3eb5ddd8b3ff3d2761c0d00487eeb7d80bc3fadf9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9d30926d37b3c9e392f3eb5ddd8b3ff3d2761c0d00487eeb7d80bc3fadf9dd", kill_on_drop: false }`
[INFO] [stdout] bb9d30926d37b3c9e392f3eb5ddd8b3ff3d2761c0d00487eeb7d80bc3fadf9dd
[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" "+1.47.0" "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] c5a24224d1afcd826fbd1085a3454569d8c1ab7fe0147be9f0b2dd1f0ef5f596
[INFO] running `Command { std: "docker" "start" "-a" "c5a24224d1afcd826fbd1085a3454569d8c1ab7fe0147be9f0b2dd1f0ef5f596", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]  Documenting leetcode-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.15s
[INFO] running `Command { std: "docker" "inspect" "c5a24224d1afcd826fbd1085a3454569d8c1ab7fe0147be9f0b2dd1f0ef5f596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a24224d1afcd826fbd1085a3454569d8c1ab7fe0147be9f0b2dd1f0ef5f596", kill_on_drop: false }`
[INFO] [stdout] c5a24224d1afcd826fbd1085a3454569d8c1ab7fe0147be9f0b2dd1f0ef5f596