[INFO] cloning repository https://github.com/ChrisMacNaughton/cargo-cacher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChrisMacNaughton/cargo-cacher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisMacNaughton%2Fcargo-cacher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisMacNaughton%2Fcargo-cacher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b874d97fa0e65005df6c8456c7879fa08056d530
[INFO] documenting ChrisMacNaughton/cargo-cacher 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%2FChrisMacNaughton%2Fcargo-cacher" "/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/ChrisMacNaughton/cargo-cacher 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/ChrisMacNaughton/cargo-cacher
[INFO] finished tweaking git repo https://github.com/ChrisMacNaughton/cargo-cacher
[INFO] tweaked toml for git repo https://github.com/ChrisMacNaughton/cargo-cacher written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ChrisMacNaughton/cargo-cacher 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] [stderr]     Blocking waiting for file lock on package cache
[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" "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] 97c61e395750b7eb57174ad3a1b51e6cab33da1bac26f3007cd03bbe6a13fae8
[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" "97c61e395750b7eb57174ad3a1b51e6cab33da1bac26f3007cd03bbe6a13fae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97c61e395750b7eb57174ad3a1b51e6cab33da1bac26f3007cd03bbe6a13fae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c61e395750b7eb57174ad3a1b51e6cab33da1bac26f3007cd03bbe6a13fae8", kill_on_drop: false }`
[INFO] [stdout] 97c61e395750b7eb57174ad3a1b51e6cab33da1bac26f3007cd03bbe6a13fae8
[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" "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] 3123d1491d06b2d342de33504f24d15e18d8d9ea875c5979d503936c4782c8d6
[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" "3123d1491d06b2d342de33504f24d15e18d8d9ea875c5979d503936c4782c8d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking simple_logger v1.6.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking logger v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking cargo-lock v4.0.1
[INFO] [stderr]  Documenting cargo-cacher v1.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.26s
[INFO] running `Command { std: "docker" "inspect" "3123d1491d06b2d342de33504f24d15e18d8d9ea875c5979d503936c4782c8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3123d1491d06b2d342de33504f24d15e18d8d9ea875c5979d503936c4782c8d6", kill_on_drop: false }`
[INFO] [stdout] 3123d1491d06b2d342de33504f24d15e18d8d9ea875c5979d503936c4782c8d6