[INFO] cloning repository https://github.com/uzkbwza/rust-rl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uzkbwza/rust-rl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzkbwza%2Frust-rl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzkbwza%2Frust-rl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ed7841e5ff0c8ca108c0e36a0c165c607e640fe
[INFO] documenting uzkbwza/rust-rl 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%2Fuzkbwza%2Frust-rl" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uzkbwza/rust-rl 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/uzkbwza/rust-rl
[INFO] removed path dependency mapgen from git repo https://github.com/uzkbwza/rust-rl
[INFO] removed path dependency vecmap from git repo https://github.com/uzkbwza/rust-rl
[INFO] finished tweaking git repo https://github.com/uzkbwza/rust-rl
[INFO] tweaked toml for git repo https://github.com/uzkbwza/rust-rl written to /workspace/builds/worker-2/source/Cargo.toml
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/thebracket/rltk_rs`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (mapgen) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (vecmap) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ffb663a536545f3ac0771fcba288d90d36bc931d5ede92dddc9f3de50a7faf45
[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" "ffb663a536545f3ac0771fcba288d90d36bc931d5ede92dddc9f3de50a7faf45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffb663a536545f3ac0771fcba288d90d36bc931d5ede92dddc9f3de50a7faf45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb663a536545f3ac0771fcba288d90d36bc931d5ede92dddc9f3de50a7faf45", kill_on_drop: false }`
[INFO] [stdout] ffb663a536545f3ac0771fcba288d90d36bc931d5ede92dddc9f3de50a7faf45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c31158f620016884bb80c82c45a8ab18a9f4cc02afab9a4d1b716ec3cd667f20
[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" "c31158f620016884bb80c82c45a8ab18a9f4cc02afab9a4d1b716ec3cd667f20", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (mapgen) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (vecmap) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling wide v0.4.6
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]     Checking vecmap v0.1.0
[INFO] [stderr]     Checking array2d v0.2.1
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling tcod-sys v5.0.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking image v0.23.9
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]     Checking ultraviolet v0.4.6
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking bracket-color v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]     Checking object-pool v0.5.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]    Compiling glow v0.4.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking bracket-random v0.8.0 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]     Checking mapgen v0.1.2
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]     Checking bracket-noise v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]     Checking bracket-geometry v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking bracket-algorithm-traits v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]     Checking bracket-pathfinding v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]     Checking calloop v0.4.4
[INFO] [stderr]     Checking wayland-client v0.23.6
[INFO] [stderr]     Checking wayland-protocols v0.23.6
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling shred-derive v0.6.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]     Checking winit v0.16.2
[INFO] [stderr]     Checking shred v0.9.4
[INFO] [stderr]     Checking smithay-client-toolkit v0.6.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/shred-0.9.4/src/lib.rs:54:34
[INFO] [stdout]    |
[INFO] [stdout] 54 | #![cfg_attr(feature = "nightly", feature(core_intrinsics))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking uni-gl v0.1.2
[INFO] [stderr]     Checking tcod v0.15.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shred`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c31158f620016884bb80c82c45a8ab18a9f4cc02afab9a4d1b716ec3cd667f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c31158f620016884bb80c82c45a8ab18a9f4cc02afab9a4d1b716ec3cd667f20", kill_on_drop: false }`
[INFO] [stdout] c31158f620016884bb80c82c45a8ab18a9f4cc02afab9a4d1b716ec3cd667f20