[INFO] cloning repository https://github.com/shempignon/docker-compose-backup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shempignon/docker-compose-backup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshempignon%2Fdocker-compose-backup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshempignon%2Fdocker-compose-backup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7108df0bb9227f05f99dafa50762701cd92c18b
[INFO] documenting shempignon/docker-compose-backup 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%2Fshempignon%2Fdocker-compose-backup" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shempignon/docker-compose-backup 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/shempignon/docker-compose-backup
[INFO] finished tweaking git repo https://github.com/shempignon/docker-compose-backup
[INFO] tweaked toml for git repo https://github.com/shempignon/docker-compose-backup written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/shempignon/docker-compose-backup 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 bollard v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 139207aef6750c41bfe8dcec4814ed086dd89fbf9e554eb92f229cc1ae67e561
[INFO] running `Command { std: "docker" "start" "-a" "139207aef6750c41bfe8dcec4814ed086dd89fbf9e554eb92f229cc1ae67e561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "139207aef6750c41bfe8dcec4814ed086dd89fbf9e554eb92f229cc1ae67e561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "139207aef6750c41bfe8dcec4814ed086dd89fbf9e554eb92f229cc1ae67e561", kill_on_drop: false }`
[INFO] [stdout] 139207aef6750c41bfe8dcec4814ed086dd89fbf9e554eb92f229cc1ae67e561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e793c1f8dcf9e32946a87146ba5538d2079dc2b0631aa7e4aee7e464c590c34e
[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" "e793c1f8dcf9e32946a87146ba5538d2079dc2b0631aa7e4aee7e464c590c34e", kill_on_drop: false }`
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking pin-project v0.4.9
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking hyper-unix-connector v0.1.4
[INFO] [stderr]     Checking bollard v0.5.1
[INFO] [stderr]  Documenting docker-compose-backup v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "e793c1f8dcf9e32946a87146ba5538d2079dc2b0631aa7e4aee7e464c590c34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e793c1f8dcf9e32946a87146ba5538d2079dc2b0631aa7e4aee7e464c590c34e", kill_on_drop: false }`
[INFO] [stdout] e793c1f8dcf9e32946a87146ba5538d2079dc2b0631aa7e4aee7e464c590c34e