[INFO] cloning repository https://github.com/tismith/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tismith/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftismith%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftismith%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 249a23a1491c16a2cbf478c2075bba55ed4a2ead
[INFO] documenting tismith/chip8 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%2Ftismith%2Fchip8" "/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/tismith/chip8 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/tismith/chip8
[INFO] finished tweaking git repo https://github.com/tismith/chip8
[INFO] tweaked toml for git repo https://github.com/tismith/chip8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tismith/chip8 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-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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81fd0b6e53bc78acc04f012156700f445a373dcb5cf9554e1a27c8715136a80f
[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" "81fd0b6e53bc78acc04f012156700f445a373dcb5cf9554e1a27c8715136a80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81fd0b6e53bc78acc04f012156700f445a373dcb5cf9554e1a27c8715136a80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fd0b6e53bc78acc04f012156700f445a373dcb5cf9554e1a27c8715136a80f", kill_on_drop: false }`
[INFO] [stdout] 81fd0b6e53bc78acc04f012156700f445a373dcb5cf9554e1a27c8715136a80f
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f5fbd4ef6f9ba70a48132bd6360ef75e1ba16e4f3f996d2dfa8da02666cf20
[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" "17f5fbd4ef6f9ba70a48132bd6360ef75e1ba16e4f3f996d2dfa8da02666cf20", 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] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking chrono v0.4.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling quote v0.6.5
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking chip8-tismith v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting chip8-tismith v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.25s
[INFO] running `Command { std: "docker" "inspect" "17f5fbd4ef6f9ba70a48132bd6360ef75e1ba16e4f3f996d2dfa8da02666cf20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f5fbd4ef6f9ba70a48132bd6360ef75e1ba16e4f3f996d2dfa8da02666cf20", kill_on_drop: false }`
[INFO] [stdout] 17f5fbd4ef6f9ba70a48132bd6360ef75e1ba16e4f3f996d2dfa8da02666cf20