[INFO] cloning repository https://github.com/RGafiyatullin/rust-hairy-closure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RGafiyatullin/rust-hairy-closure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRGafiyatullin%2Frust-hairy-closure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRGafiyatullin%2Frust-hairy-closure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3bf3e3ae6bacdf5691cab7b572bbcebdf32b3b90
[INFO] documenting RGafiyatullin/rust-hairy-closure 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%2FRGafiyatullin%2Frust-hairy-closure" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RGafiyatullin/rust-hairy-closure 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/RGafiyatullin/rust-hairy-closure
[INFO] finished tweaking git repo https://github.com/RGafiyatullin/rust-hairy-closure
[INFO] tweaked toml for git repo https://github.com/RGafiyatullin/rust-hairy-closure written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/RGafiyatullin/rust-hairy-closure 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]  Downloading crates ...
[INFO] [stderr]   Downloaded mio v0.6.17
[INFO] [stderr]   Downloaded tokio-sync v0.1.5
[INFO] [stderr]   Downloaded tokio v0.1.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9750e207b082135d97843054f717d707b68f82cf026f6ffc29b1ba7adb6531fb
[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" "9750e207b082135d97843054f717d707b68f82cf026f6ffc29b1ba7adb6531fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9750e207b082135d97843054f717d707b68f82cf026f6ffc29b1ba7adb6531fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9750e207b082135d97843054f717d707b68f82cf026f6ffc29b1ba7adb6531fb", kill_on_drop: false }`
[INFO] [stdout] 9750e207b082135d97843054f717d707b68f82cf026f6ffc29b1ba7adb6531fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 725d703780337b298c6cc0c1df3875d985bfcd73473020670513f5f235f71dbb
[INFO] running `Command { std: "docker" "start" "-a" "725d703780337b298c6cc0c1df3875d985bfcd73473020670513f5f235f71dbb", kill_on_drop: false }`
[INFO] [stderr]  Documenting memory-safety v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "725d703780337b298c6cc0c1df3875d985bfcd73473020670513f5f235f71dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725d703780337b298c6cc0c1df3875d985bfcd73473020670513f5f235f71dbb", kill_on_drop: false }`
[INFO] [stdout] 725d703780337b298c6cc0c1df3875d985bfcd73473020670513f5f235f71dbb