[INFO] cloning repository https://github.com/Elements6007v2/lvgl-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Elements6007v2/lvgl-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElements6007v2%2Flvgl-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElements6007v2%2Flvgl-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f109654e5bf0fe332d9ba83cafdc1629620f9ba
[INFO] testing Elements6007v2/lvgl-wasm against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElements6007v2%2Flvgl-wasm" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/Elements6007v2/lvgl-wasm on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Elements6007v2/lvgl-wasm
[INFO] finished tweaking git repo https://github.com/Elements6007v2/lvgl-wasm
[INFO] tweaked toml for git repo https://github.com/Elements6007v2/lvgl-wasm written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/Elements6007v2/lvgl-wasm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8554f397ebcce437b64ffd033fe007a0cc2c02eac8d74052745d8ed27fe7b9ac
[INFO] running `Command { std: "docker" "start" "-a" "8554f397ebcce437b64ffd033fe007a0cc2c02eac8d74052745d8ed27fe7b9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8554f397ebcce437b64ffd033fe007a0cc2c02eac8d74052745d8ed27fe7b9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8554f397ebcce437b64ffd033fe007a0cc2c02eac8d74052745d8ed27fe7b9ac", kill_on_drop: false }`
[INFO] [stdout] 8554f397ebcce437b64ffd033fe007a0cc2c02eac8d74052745d8ed27fe7b9ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f69677f70b8cd6e0d988365e3f8c5cf12957c6e0153f55bbcebc59ffeffc26d5
[INFO] running `Command { std: "docker" "start" "-a" "f69677f70b8cd6e0d988365e3f8c5cf12957c6e0153f55bbcebc59ffeffc26d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.67
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.67
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]    Compiling js-sys v0.3.44
[INFO] [stderr]    Compiling web-sys v0.3.44
[INFO] [stderr]    Compiling lvgl_wasm_rust v0.1.0 (/opt/rustwide/workdir/rust)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> rust/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(libc)]
[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 `lvgl_wasm_rust` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f69677f70b8cd6e0d988365e3f8c5cf12957c6e0153f55bbcebc59ffeffc26d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69677f70b8cd6e0d988365e3f8c5cf12957c6e0153f55bbcebc59ffeffc26d5", kill_on_drop: false }`
[INFO] [stdout] f69677f70b8cd6e0d988365e3f8c5cf12957c6e0153f55bbcebc59ffeffc26d5