[INFO] fetching crate cyclang-backend 0.1.20...
[INFO] testing cyclang-backend-0.1.20 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate cyclang-backend 0.1.20 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate cyclang-backend 0.1.20
[INFO] finished tweaking crates.io crate cyclang-backend 0.1.20
[INFO] tweaked toml for crates.io crate cyclang-backend 0.1.20 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cyclang-backend 0.1.20 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding llvm-sys v191.0.0 (available: v201.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cyclang-parser v0.1.20
[INFO] [stderr]   Downloaded llvm-sys v191.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed9e9c1bce0956f61771254b51149f51d8cdadfc075b39f0e00ed45e38bc7b8e
[INFO] running `Command { std: "docker" "start" "-a" "ed9e9c1bce0956f61771254b51149f51d8cdadfc075b39f0e00ed45e38bc7b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed9e9c1bce0956f61771254b51149f51d8cdadfc075b39f0e00ed45e38bc7b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9e9c1bce0956f61771254b51149f51d8cdadfc075b39f0e00ed45e38bc7b8e", kill_on_drop: false }`
[INFO] [stdout] ed9e9c1bce0956f61771254b51149f51d8cdadfc075b39f0e00ed45e38bc7b8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] d69219aa6e1e20e5b710207ae62170cc3ee8a9f63caac434250060432beaa45e
[INFO] running `Command { std: "docker" "start" "-a" "d69219aa6e1e20e5b710207ae62170cc3ee8a9f63caac434250060432beaa45e", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling cyclang-parser v0.1.20
[INFO] [stderr]    Compiling llvm-sys v191.0.0
[INFO] [stdout] error: No suitable version of LLVM was found system-wide or pointed
[INFO] [stdout]               to by LLVM_SYS_191_PREFIX.
[INFO] [stdout]        
[INFO] [stdout]               Consider using `llvmenv` to compile an appropriate copy of LLVM, and
[INFO] [stdout]               refer to the llvm-sys documentation for more information.
[INFO] [stdout]        
[INFO] [stdout]               llvm-sys: https://crates.io/crates/llvm-sys
[INFO] [stdout]               llvmenv: https://crates.io/crates/llvmenv
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/llvm-sys-191.0.0/src/lib.rs:529:1
[INFO] [stdout]     |
[INFO] [stdout] 529 | / std::compile_error!(concat!(
[INFO] [stdout] 530 | |     "No suitable version of LLVM was found system-wide or pointed
[INFO] [stdout] 531 | |        to by LLVM_SYS_",
[INFO] [stdout] 532 | |     env!("CARGO_PKG_VERSION_MAJOR"),
[INFO] [stdout] ...   |
[INFO] [stdout] 539 | |        llvmenv: https://crates.io/crates/llvmenv"
[INFO] [stdout] 540 | | ));
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `llvm-sys` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d69219aa6e1e20e5b710207ae62170cc3ee8a9f63caac434250060432beaa45e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d69219aa6e1e20e5b710207ae62170cc3ee8a9f63caac434250060432beaa45e", kill_on_drop: false }`
[INFO] [stdout] d69219aa6e1e20e5b710207ae62170cc3ee8a9f63caac434250060432beaa45e