[INFO] cloning repository https://github.com/John2143/bdo2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/John2143/bdo2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohn2143%2Fbdo2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohn2143%2Fbdo2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a7acab91d3047d35dcf0ef30af0cd3234cd9bc0
[INFO] testing John2143/bdo2 against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohn2143%2Fbdo2" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/John2143/bdo2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] started tweaking git repo https://github.com/John2143/bdo2
[INFO] finished tweaking git repo https://github.com/John2143/bdo2
[INFO] tweaked toml for git repo https://github.com/John2143/bdo2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/John2143/bdo2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec97d8a1fce25cf58b7f8aa80686d97821cb1b108d982aa965e09fc497bcca9d
[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" "ec97d8a1fce25cf58b7f8aa80686d97821cb1b108d982aa965e09fc497bcca9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec97d8a1fce25cf58b7f8aa80686d97821cb1b108d982aa965e09fc497bcca9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec97d8a1fce25cf58b7f8aa80686d97821cb1b108d982aa965e09fc497bcca9d", kill_on_drop: false }`
[INFO] [stdout] ec97d8a1fce25cf58b7f8aa80686d97821cb1b108d982aa965e09fc497bcca9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4d5e8630e98a9be8fbb335803d57b1fc0727f433c2b42361c720409f6bec168
[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" "f4d5e8630e98a9be8fbb335803d57b1fc0727f433c2b42361c720409f6bec168", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling fixedbitset v0.3.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling bevy-glsl-to-spirv v0.2.1
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling ttf-parser v0.9.0
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling inflections v1.1.1
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.2
[INFO] [stderr]    Compiling rectangle-pack v0.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling glam v0.11.2
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling sharded-slab v0.1.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling wgpu-types v0.6.0
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling stretch v0.3.2
[INFO] [stderr]    Compiling euclid v0.22.1
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling ash v0.31.0
[INFO] [stderr]    Compiling image v0.23.12
[INFO] [stderr]    Compiling owned_ttf_parser v0.9.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling ab_glyph v0.2.7
[INFO] [stderr]    Compiling spirv-reflect v0.2.3
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling guillotiere v0.6.0
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling glyph_brush_layout v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling slice-deque v0.3.0
[INFO] [stderr]    Compiling inotify v0.8.3
[INFO] [stderr]    Compiling ahash v0.6.2
[INFO] [stderr]    Compiling gfx-hal v0.6.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling bevy_tasks v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling minimp3 v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v5.0.0-pre.3
[INFO] [stderr]    Compiling alsa v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling gltf-derive v0.15.2
[INFO] [stderr]    Compiling gfx-memory v0.2.0
[INFO] [stderr]    Compiling gfx-descriptor v0.2.0
[INFO] [stderr]    Compiling gfx-backend-empty v0.6.0
[INFO] [stderr]    Compiling tracing v0.1.19
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling naga v0.2.0
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling rodio v0.13.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling erased-serde v0.3.12
[INFO] [stderr]    Compiling ron v0.6.2
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling gfx-backend-vulkan v0.6.1
[INFO] [stderr]    Compiling bevy_utils v0.4.0
[INFO] [stderr]    Compiling gilrs-core v0.3.0
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling winit v0.24.0
[INFO] [stderr]    Compiling gilrs v0.8.0
[INFO] [stderr]    Compiling hexasphere v3.1.0
[INFO] [stderr]    Compiling gltf-json v0.15.2
[INFO] [stderr]    Compiling tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling find-crate v0.6.1
[INFO] [stderr]    Compiling wgpu-core v0.6.0
[INFO] [stderr]    Compiling bevy_ecs_macros v0.4.0
[INFO] [stderr]    Compiling bevy_derive v0.4.0
[INFO] [stderr]    Compiling bevy_reflect_derive v0.4.0
[INFO] [stderr]    Compiling bevy_ecs v0.4.0
[INFO] [stderr]    Compiling gltf v0.15.2
[INFO] [stderr]    Compiling wgpu v0.6.0
[INFO] [stderr]    Compiling bevy_app v0.4.0
[INFO] [stderr]    Compiling bevy_reflect v0.4.0
[INFO] [stderr]    Compiling bevy_log v0.4.0
[INFO] [stderr]    Compiling bevy_dynamic_plugin v0.4.0
[INFO] [stderr]    Compiling bevy_math v0.4.0
[INFO] [stderr]    Compiling bevy_asset v0.4.0
[INFO] [stderr]    Compiling bevy_core v0.4.0
[INFO] [stderr]    Compiling bevy_transform v0.4.0
[INFO] [stderr]    Compiling bevy_window v0.4.0
[INFO] [stderr]    Compiling bevy_input v0.4.0
[INFO] [stderr]    Compiling bevy_diagnostic v0.4.0
[INFO] [stderr]    Compiling bevy_render v0.4.0
[INFO] [stderr]    Compiling bevy_scene v0.4.0
[INFO] [stderr]    Compiling bevy_audio v0.4.0
[INFO] [stderr]    Compiling bevy_winit v0.4.0
[INFO] [stderr]    Compiling bevy_gilrs v0.4.0
[INFO] [stderr]    Compiling bevy_sprite v0.4.0
[INFO] [stderr]    Compiling bevy_pbr v0.4.0
[INFO] [stderr]    Compiling bevy_wgpu v0.4.0
[INFO] [stderr]    Compiling bevy_gltf v0.4.0
[INFO] [stderr]    Compiling bevy_text v0.4.0
[INFO] [stderr]    Compiling bevy_ui v0.4.0
[INFO] [stderr]    Compiling bevy_internal v0.4.0
[INFO] [stderr]    Compiling bevy v0.4.0
[INFO] [stderr]    Compiling bdo3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(min_const_generics, cow_is_borrowed)]
[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 `bdo3`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f4d5e8630e98a9be8fbb335803d57b1fc0727f433c2b42361c720409f6bec168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4d5e8630e98a9be8fbb335803d57b1fc0727f433c2b42361c720409f6bec168", kill_on_drop: false }`
[INFO] [stdout] f4d5e8630e98a9be8fbb335803d57b1fc0727f433c2b42361c720409f6bec168