[INFO] cloning repository https://github.com/cptroot/tetris-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cptroot/tetris-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcptroot%2Ftetris-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcptroot%2Ftetris-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 570fa57f9e398b01ca6ff9c22d65a4158df41984
[INFO] documenting cptroot/tetris-rs 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%2Fcptroot%2Ftetris-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cptroot/tetris-rs 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/cptroot/tetris-rs
[INFO] finished tweaking git repo https://github.com/cptroot/tetris-rs
[INFO] tweaked toml for git repo https://github.com/cptroot/tetris-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/cptroot/tetris-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 5f61001051d3db2d46d7bcf4e38c283451005320620093f35454751de6434e0a
[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" "5f61001051d3db2d46d7bcf4e38c283451005320620093f35454751de6434e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f61001051d3db2d46d7bcf4e38c283451005320620093f35454751de6434e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f61001051d3db2d46d7bcf4e38c283451005320620093f35454751de6434e0a", kill_on_drop: false }`
[INFO] [stdout] 5f61001051d3db2d46d7bcf4e38c283451005320620093f35454751de6434e0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 76a4340251d75f4df44e0c283126c1b47ccd166ea1097ec28a5e369b8617e324
[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" "76a4340251d75f4df44e0c283126c1b47ccd166ea1097ec28a5e369b8617e324", kill_on_drop: false }`
[INFO] [stderr]     Checking piston-float v0.2.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.2.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]     Checking gfx_core v0.4.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking piston-viewport v0.2.0
[INFO] [stderr]     Checking vecmath v0.2.0
[INFO] [stderr]     Checking memmap v0.2.3
[INFO] [stderr]     Checking pistoncore-input v0.14.0
[INFO] [stderr]     Checking stb_truetype v0.2.8
[INFO] [stderr]     Checking rusttype v0.2.4
[INFO] [stderr]     Checking piston2d-graphics v0.17.3
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking pistoncore-window v0.22.1
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking pistoncore-event_loop v0.25.1
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking piston v0.25.1
[INFO] [stderr]     Checking gfx v0.12.2
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking piston-gfx_texture v0.17.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.31.2
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking gfx_device_gl v0.11.2
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.5.11
[INFO] [stderr]     Checking wayland-kbd v0.3.6
[INFO] [stderr]     Checking wayland-window v0.2.3
[INFO] [stderr]     Checking pistoncore-glutin_window v0.29.0
[INFO] [stderr]     Checking piston_window v0.52.0
[INFO] [stderr]  Documenting tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.57s
[INFO] running `Command { std: "docker" "inspect" "76a4340251d75f4df44e0c283126c1b47ccd166ea1097ec28a5e369b8617e324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a4340251d75f4df44e0c283126c1b47ccd166ea1097ec28a5e369b8617e324", kill_on_drop: false }`
[INFO] [stdout] 76a4340251d75f4df44e0c283126c1b47ccd166ea1097ec28a5e369b8617e324