[INFO] cloning repository https://github.com/taiki-e/cargo-hack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taiki-e/cargo-hack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaiki-e%2Fcargo-hack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaiki-e%2Fcargo-hack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 854596fd8f65a3b7d1b22a0e2144c5e46dd9a28a
[INFO] documenting taiki-e/cargo-hack 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%2Ftaiki-e%2Fcargo-hack" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taiki-e/cargo-hack 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/taiki-e/cargo-hack
[INFO] removed workspace from git repo https://github.com/taiki-e/cargo-hack
[INFO] finished tweaking git repo https://github.com/taiki-e/cargo-hack
[INFO] tweaked toml for git repo https://github.com/taiki-e/cargo-hack written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/taiki-e/cargo-hack 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 706bd9a5e6413782090a6a9834221a85d6265caec90535bbf33a6bc8102dad7e
[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" "706bd9a5e6413782090a6a9834221a85d6265caec90535bbf33a6bc8102dad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "706bd9a5e6413782090a6a9834221a85d6265caec90535bbf33a6bc8102dad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706bd9a5e6413782090a6a9834221a85d6265caec90535bbf33a6bc8102dad7e", kill_on_drop: false }`
[INFO] [stdout] 706bd9a5e6413782090a6a9834221a85d6265caec90535bbf33a6bc8102dad7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0dcf37c903663dfc65592fbe197288448790798d6e0f2883bcbd54dedc322ab9
[INFO] running `Command { std: "docker" "start" "-a" "0dcf37c903663dfc65592fbe197288448790798d6e0f2883bcbd54dedc322ab9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking ctrlc v3.1.4
[INFO] [stderr]  Documenting cargo-hack v0.3.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.41s
[INFO] running `Command { std: "docker" "inspect" "0dcf37c903663dfc65592fbe197288448790798d6e0f2883bcbd54dedc322ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dcf37c903663dfc65592fbe197288448790798d6e0f2883bcbd54dedc322ab9", kill_on_drop: false }`
[INFO] [stdout] 0dcf37c903663dfc65592fbe197288448790798d6e0f2883bcbd54dedc322ab9