[INFO] cloning repository https://github.com/ericrobolson/RMercury
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ericrobolson/RMercury" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericrobolson%2FRMercury", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericrobolson%2FRMercury'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19f9bc01ef80b4f130c21bf44e78fc751bdc212b
[INFO] documenting ericrobolson/RMercury 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%2Fericrobolson%2FRMercury" "/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/ericrobolson/RMercury 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/ericrobolson/RMercury
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/ericrobolson/RMercury
[INFO] tweaked toml for git repo https://github.com/ericrobolson/RMercury written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ericrobolson/RMercury 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 time-macros-impl v0.1.0
[INFO] [stderr]   Downloaded unidiff v0.3.2
[INFO] [stderr]   Downloaded sdl2-sys v0.33.0
[INFO] [stderr]   Downloaded sdl2 v0.33.0
[INFO] [stderr]   Downloaded time v0.2.7
[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] db7c2ac455eeb7ff102dfb26729095729d49e695ba2bcbf095b66d47477c323b
[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" "db7c2ac455eeb7ff102dfb26729095729d49e695ba2bcbf095b66d47477c323b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db7c2ac455eeb7ff102dfb26729095729d49e695ba2bcbf095b66d47477c323b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db7c2ac455eeb7ff102dfb26729095729d49e695ba2bcbf095b66d47477c323b", kill_on_drop: false }`
[INFO] [stdout] db7c2ac455eeb7ff102dfb26729095729d49e695ba2bcbf095b66d47477c323b
[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] [stdout] 249b08a0d456e10a0c62ca7facf9e4ce49bee00296b8c5b1e43bf64e47238d1b
[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" "249b08a0d456e10a0c62ca7facf9e4ce49bee00296b8c5b1e43bf64e47238d1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.0
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking time v0.2.7
[INFO] [stderr]  Documenting rmercury v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.13s
[INFO] running `Command { std: "docker" "inspect" "249b08a0d456e10a0c62ca7facf9e4ce49bee00296b8c5b1e43bf64e47238d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "249b08a0d456e10a0c62ca7facf9e4ce49bee00296b8c5b1e43bf64e47238d1b", kill_on_drop: false }`
[INFO] [stdout] 249b08a0d456e10a0c62ca7facf9e4ce49bee00296b8c5b1e43bf64e47238d1b