[INFO] cloning repository https://github.com/BearzRobotics/cache_cleaner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BearzRobotics/cache_cleaner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBearzRobotics%2Fcache_cleaner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBearzRobotics%2Fcache_cleaner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a07e14a9bc051536c354ace5005c830959cf7bff
[INFO] documenting BearzRobotics/cache_cleaner against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBearzRobotics%2Fcache_cleaner" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BearzRobotics/cache_cleaner on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BearzRobotics/cache_cleaner
[INFO] finished tweaking git repo https://github.com/BearzRobotics/cache_cleaner
[INFO] tweaked toml for git repo https://github.com/BearzRobotics/cache_cleaner written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/BearzRobotics/cache_cleaner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wild v0.1.1
[INFO] [stderr]   Downloaded crossterm v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c6079e32ac9188c10ad96e43f971157b49418e5d9a91ad37931324d10755688
[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" "4c6079e32ac9188c10ad96e43f971157b49418e5d9a91ad37931324d10755688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c6079e32ac9188c10ad96e43f971157b49418e5d9a91ad37931324d10755688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6079e32ac9188c10ad96e43f971157b49418e5d9a91ad37931324d10755688", kill_on_drop: false }`
[INFO] [stdout] 4c6079e32ac9188c10ad96e43f971157b49418e5d9a91ad37931324d10755688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f68738ce42f9a792abce30b3875cabaebd03282cdeedc00495f3aa6323aa7ba7
[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" "f68738ce42f9a792abce30b3875cabaebd03282cdeedc00495f3aa6323aa7ba7", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking wild v0.1.1
[INFO] [stderr]     Checking log v0.4.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking crossterm v0.2.0
[INFO] [stderr]     Checking clap v2.29.0
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]  Documenting cache_cleaner v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "f68738ce42f9a792abce30b3875cabaebd03282cdeedc00495f3aa6323aa7ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68738ce42f9a792abce30b3875cabaebd03282cdeedc00495f3aa6323aa7ba7", kill_on_drop: false }`
[INFO] [stdout] f68738ce42f9a792abce30b3875cabaebd03282cdeedc00495f3aa6323aa7ba7