[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] testing uzkbwza/rust-rl against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzkbwza%2Frust-rl" "/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/uzkbwza/rust-rl on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/thebracket/rltk_rs`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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] 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" "+1.47.0" "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] 50a3d4af44ccc9b7b416c095ab09de2f79433388e231b4604ade9a8364c66d67
[INFO] running `Command { std: "docker" "start" "-a" "50a3d4af44ccc9b7b416c095ab09de2f79433388e231b4604ade9a8364c66d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50a3d4af44ccc9b7b416c095ab09de2f79433388e231b4604ade9a8364c66d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50a3d4af44ccc9b7b416c095ab09de2f79433388e231b4604ade9a8364c66d67", kill_on_drop: false }`
[INFO] [stdout] 50a3d4af44ccc9b7b416c095ab09de2f79433388e231b4604ade9a8364c66d67
[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" "RUSTFLAGS=--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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c73c07a916b2fef9f657693d43809315df01a4924ea1568d393455edca633e96
[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" "c73c07a916b2fef9f657693d43809315df01a4924ea1568d393455edca633e96", 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 getrandom v0.2.0
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling atom v0.3.6
[INFO] [stderr]    Compiling vecmap v0.1.0
[INFO] [stderr]    Compiling array2d v0.2.1
[INFO] [stderr]    Compiling tcod-sys v5.0.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling wayland-sys v0.23.6
[INFO] [stderr]    Compiling wayland-sys v0.20.12
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling bracket-geometry v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling object-pool v0.5.3
[INFO] [stderr]    Compiling bracket-color v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling shred-derive v0.6.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling bracket-algorithm-traits v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling wayland-commons v0.20.12
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling ron v0.6.2
[INFO] [stderr]    Compiling bracket-pathfinding v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling glow v0.4.0
[INFO] [stderr]    Compiling hibitset v0.6.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling bracket-random v0.8.0 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling mapgen v0.4.0
[INFO] [stderr]    Compiling const-random v0.1.11
[INFO] [stderr]    Compiling ahash v0.2.19
[INFO] [stderr]    Compiling bracket-noise v0.8.1 (https://github.com/thebracket/rltk_rs#320e8f9d)
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling wayland-commons v0.23.6
[INFO] [stderr]    Compiling shred v0.9.4
[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]    Compiling wayland-client v0.23.6
[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" "c73c07a916b2fef9f657693d43809315df01a4924ea1568d393455edca633e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c73c07a916b2fef9f657693d43809315df01a4924ea1568d393455edca633e96", kill_on_drop: false }`
[INFO] [stdout] c73c07a916b2fef9f657693d43809315df01a4924ea1568d393455edca633e96
