[INFO] cloning repository https://github.com/twetzel59/luminance_procedural_world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twetzel59/luminance_procedural_world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwetzel59%2Fluminance_procedural_world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwetzel59%2Fluminance_procedural_world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29880919bca6f10480ca73f8bd2605f37c7d2a2d
[INFO] documenting twetzel59/luminance_procedural_world 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%2Ftwetzel59%2Fluminance_procedural_world" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twetzel59/luminance_procedural_world 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/twetzel59/luminance_procedural_world
[INFO] finished tweaking git repo https://github.com/twetzel59/luminance_procedural_world
[INFO] tweaked toml for git repo https://github.com/twetzel59/luminance_procedural_world written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/twetzel59/luminance_procedural_world 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]     Updating git repository `https://github.com/twetzel59/luminance-glfw.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded glfw v0.16.0
[INFO] [stderr]   Downloaded glfw-sys v3.2.2
[INFO] [stderr]   Downloaded luminance-windowing v0.1.1
[INFO] [stderr]   Downloaded luminance v0.24.0
[INFO] [stderr]   Downloaded cmake v0.1.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 0db45060c3ca3768f399ef97396606b016ca354fcb8e7de233819490bb3e1115
[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" "0db45060c3ca3768f399ef97396606b016ca354fcb8e7de233819490bb3e1115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0db45060c3ca3768f399ef97396606b016ca354fcb8e7de233819490bb3e1115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db45060c3ca3768f399ef97396606b016ca354fcb8e7de233819490bb3e1115", kill_on_drop: false }`
[INFO] [stdout] 0db45060c3ca3768f399ef97396606b016ca354fcb8e7de233819490bb3e1115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 05b92007a2c8f53294a00c39f0b40ff6831974fd561935a41ca5ba44447d533e
[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" "05b92007a2c8f53294a00c39f0b40ff6831974fd561935a41ca5ba44447d533e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.0.0
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking luminance-windowing v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.27
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking noise v0.4.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling glfw-sys v3.2.2
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking glfw v0.16.0
[INFO] [stderr]     Checking luminance-glfw v0.4.1 (https://github.com/twetzel59/luminance-glfw.git#49b154ce)
[INFO] [stderr]     Checking luminance v0.24.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/luminance-0.24.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `luminance`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "05b92007a2c8f53294a00c39f0b40ff6831974fd561935a41ca5ba44447d533e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b92007a2c8f53294a00c39f0b40ff6831974fd561935a41ca5ba44447d533e", kill_on_drop: false }`
[INFO] [stdout] 05b92007a2c8f53294a00c39f0b40ff6831974fd561935a41ca5ba44447d533e