[INFO] cloning repository https://github.com/krscott/bracketlib-roguelike-hecs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krscott/bracketlib-roguelike-hecs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrscott%2Fbracketlib-roguelike-hecs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrscott%2Fbracketlib-roguelike-hecs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 261952fa82153a94aeceb3afa79842c30f6d8409
[INFO] testing krscott/bracketlib-roguelike-hecs against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrscott%2Fbracketlib-roguelike-hecs" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krscott/bracketlib-roguelike-hecs on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krscott/bracketlib-roguelike-hecs
[INFO] finished tweaking git repo https://github.com/krscott/bracketlib-roguelike-hecs
[INFO] tweaked toml for git repo https://github.com/krscott/bracketlib-roguelike-hecs written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/krscott/bracketlib-roguelike-hecs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70a6591dfbac51af990e99872db08ef4b68a16795af8eb059a499a7ee111efc3
[INFO] running `Command { std: "docker" "start" "-a" "70a6591dfbac51af990e99872db08ef4b68a16795af8eb059a499a7ee111efc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70a6591dfbac51af990e99872db08ef4b68a16795af8eb059a499a7ee111efc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a6591dfbac51af990e99872db08ef4b68a16795af8eb059a499a7ee111efc3", kill_on_drop: false }`
[INFO] [stdout] 70a6591dfbac51af990e99872db08ef4b68a16795af8eb059a499a7ee111efc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 713d87dfd6bce5539440e19b1329d12ea2137a42fb3decbaaa5f81a5f872f0e2
[INFO] running `Command { std: "docker" "start" "-a" "713d87dfd6bce5539440e19b1329d12ea2137a42fb3decbaaa5f81a5f872f0e2", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.87
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[INFO] [stderr]    Compiling bracket-color v0.8.2 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling bracket-random v0.8.3 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling object-pool v0.5.3
[INFO] [stderr]    Compiling bracket-noise v0.8.2 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
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[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]    Compiling bracket-geometry v0.8.2 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling bracket-algorithm-traits v0.8.2 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling bracket-pathfinding v0.8.4 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling calloop v0.6.5
[INFO] [stderr]    Compiling wayland-commons v0.28.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling wayland-cursor v0.28.5
[INFO] [stderr]    Compiling wayland-egl v0.28.5
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling smithay-client-toolkit v0.12.2
[INFO] [stderr]    Compiling winit v0.24.0
[INFO] [stderr]    Compiling glutin v0.26.0
[INFO] [stderr]    Compiling bracket-terminal v0.8.3 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling bracket-lib v0.8.2 (https://github.com/amethyst/bracket-lib?rev=927d2292b5e74dd6ef16b46bc9e40c815c36c8a0#927d2292)
[INFO] [stderr]    Compiling bracketlib-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'backtrace'
[INFO] [stdout]   --> src/main.rs:56:55
[INFO] [stdout]    |
[INFO] [stdout] 56 |             console::log(format!("Backtrace: {}", err.backtrace()));
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #53487 <https://github.com/rust-lang/rust/issues/53487> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `std::option::Option<&Backtrace>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:56:51
[INFO] [stdout]    |
[INFO] [stdout] 56 |             console::log(format!("Backtrace: {}", err.backtrace()));
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^ `std::option::Option<&Backtrace>` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<&Backtrace>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bracketlib-book` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "713d87dfd6bce5539440e19b1329d12ea2137a42fb3decbaaa5f81a5f872f0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713d87dfd6bce5539440e19b1329d12ea2137a42fb3decbaaa5f81a5f872f0e2", kill_on_drop: false }`
[INFO] [stdout] 713d87dfd6bce5539440e19b1329d12ea2137a42fb3decbaaa5f81a5f872f0e2