[INFO] cloning repository https://github.com/hsjoihs/heightmap_valley
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsjoihs/heightmap_valley" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsjoihs%2Fheightmap_valley", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsjoihs%2Fheightmap_valley'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f51577f35372ec4fa7d8a36a77d4963c8672bdc8
[INFO] documenting hsjoihs/heightmap_valley 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%2Fhsjoihs%2Fheightmap_valley" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hsjoihs/heightmap_valley 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/hsjoihs/heightmap_valley
[INFO] finished tweaking git repo https://github.com/hsjoihs/heightmap_valley
[INFO] tweaked toml for git repo https://github.com/hsjoihs/heightmap_valley written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/hsjoihs/heightmap_valley 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 lodepng v2.5.0
[INFO] [stderr]   Downloaded console v0.9.0
[INFO] [stderr]   Downloaded lab v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 771f04b5e496e4b5212f1cd45351fcc9b64e8a51c807160c5b93e4dd2ffb4afa
[INFO] running `Command { std: "docker" "start" "-a" "771f04b5e496e4b5212f1cd45351fcc9b64e8a51c807160c5b93e4dd2ffb4afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "771f04b5e496e4b5212f1cd45351fcc9b64e8a51c807160c5b93e4dd2ffb4afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "771f04b5e496e4b5212f1cd45351fcc9b64e8a51c807160c5b93e4dd2ffb4afa", kill_on_drop: false }`
[INFO] [stdout] 771f04b5e496e4b5212f1cd45351fcc9b64e8a51c807160c5b93e4dd2ffb4afa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 6149b438d485c20c23d8441a65a52adef1eb2c2c866508962d152511faa71ef3
[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" "6149b438d485c20c23d8441a65a52adef1eb2c2c866508962d152511faa71ef3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking lab v0.7.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking lodepng v2.5.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking console v0.9.0
[INFO] [stderr]     Checking indicatif v0.12.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]  Documenting heightmap_valley v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 17.95s
[INFO] running `Command { std: "docker" "inspect" "6149b438d485c20c23d8441a65a52adef1eb2c2c866508962d152511faa71ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6149b438d485c20c23d8441a65a52adef1eb2c2c866508962d152511faa71ef3", kill_on_drop: false }`
[INFO] [stdout] 6149b438d485c20c23d8441a65a52adef1eb2c2c866508962d152511faa71ef3