[INFO] fetching crate ldtk 0.4.1...
[INFO] testing ldtk-0.4.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ldtk 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ldtk 0.4.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ldtk 0.4.1
[INFO] finished tweaking crates.io crate ldtk 0.4.1
[INFO] tweaked toml for crates.io crate ldtk 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate ldtk 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sluice v0.5.4
[INFO] [stderr]   Downloaded syn v1.0.70
[INFO] [stderr]   Downloaded isahc v1.3.1
[INFO] [stderr]   Downloaded curl v0.4.35
[INFO] [stderr]   Downloaded curl-sys v0.4.42+curl-7.76.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f67b0c7ef04591800ed043d380aed418c4700794e348f4b58d5dfbacc8f6d20
[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" "0f67b0c7ef04591800ed043d380aed418c4700794e348f4b58d5dfbacc8f6d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f67b0c7ef04591800ed043d380aed418c4700794e348f4b58d5dfbacc8f6d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f67b0c7ef04591800ed043d380aed418c4700794e348f4b58d5dfbacc8f6d20", kill_on_drop: false }`
[INFO] [stdout] 0f67b0c7ef04591800ed043d380aed418c4700794e348f4b58d5dfbacc8f6d20
[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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96b6595ac855f051771532ed7e2ec104bb1d9c937cfb31b54d8e483e39ce6b65
[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" "96b6595ac855f051771532ed7e2ec104bb1d9c937cfb31b54d8e483e39ce6b65", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling ldtk v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: You must specify an `ldtk-[version]` cargo feature or the `download-schema` feature to automatically download the latest schema version.
[INFO] [stdout]    --> build.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     compile_error!(
[INFO] [stdout] 131 | |         "You must specify an `ldtk-[version]` cargo feature or the `download-schema` feature \
[INFO] [stdout] 132 | |         to automatically download the latest schema version."
[INFO] [stdout] 133 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `ldtk_version` in this scope
[INFO] [stdout]    --> build.rs:158:59
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let version = std::env::var("LDTK_VERSION").unwrap_or(ldtk_version.to_string());
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ldtk` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "96b6595ac855f051771532ed7e2ec104bb1d9c937cfb31b54d8e483e39ce6b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b6595ac855f051771532ed7e2ec104bb1d9c937cfb31b54d8e483e39ce6b65", kill_on_drop: false }`
[INFO] [stdout] 96b6595ac855f051771532ed7e2ec104bb1d9c937cfb31b54d8e483e39ce6b65