[INFO] updating cached repository https://github.com/xd009642/llvm-embedded-coverage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c15428490e8b2767a8350017cbea93e591475c77
[INFO] testing xd009642/llvm-embedded-coverage 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%2Fxd009642%2Fllvm-embedded-coverage" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xd009642/llvm-embedded-coverage 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/xd009642/llvm-embedded-coverage
[INFO] finished tweaking git repo https://github.com/xd009642/llvm-embedded-coverage
[INFO] tweaked toml for git repo https://github.com/xd009642/llvm-embedded-coverage written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate git repo https://github.com/xd009642/llvm-embedded-coverage 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 245b5fc25ab07f9a0f6f3bd17df66b8718c9482fbc351b0d8e79861e22c2b8ae
[INFO] running `Command { std: "docker" "start" "-a" "245b5fc25ab07f9a0f6f3bd17df66b8718c9482fbc351b0d8e79861e22c2b8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "245b5fc25ab07f9a0f6f3bd17df66b8718c9482fbc351b0d8e79861e22c2b8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245b5fc25ab07f9a0f6f3bd17df66b8718c9482fbc351b0d8e79861e22c2b8ae", kill_on_drop: false }`
[INFO] [stdout] 245b5fc25ab07f9a0f6f3bd17df66b8718c9482fbc351b0d8e79861e22c2b8ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 3adf39073d161e4ecb61c45f4aa464344a9c587b055b0250208cf098b4c3b452
[INFO] running `Command { std: "docker" "start" "-a" "3adf39073d161e4ecb61c45f4aa464344a9c587b055b0250208cf098b4c3b452", kill_on_drop: false }`
[INFO] [stderr]    Compiling llvm-embedded-coverage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(maybe_uninit_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `llvm-embedded-coverage` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "3adf39073d161e4ecb61c45f4aa464344a9c587b055b0250208cf098b4c3b452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3adf39073d161e4ecb61c45f4aa464344a9c587b055b0250208cf098b4c3b452", kill_on_drop: false }`
[INFO] [stdout] 3adf39073d161e4ecb61c45f4aa464344a9c587b055b0250208cf098b4c3b452