[INFO] fetching crate llvm-alt 0.5.0...
[INFO] checking llvm-alt-0.5.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate llvm-alt 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate llvm-alt 0.5.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate llvm-alt 0.5.0
[INFO] finished tweaking crates.io crate llvm-alt 0.5.0
[INFO] tweaked toml for crates.io crate llvm-alt 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v120.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dddc669a206eb90da73c4068d9da9bf2b995de0f9cc31d3165f6279b1ec4f849
[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" "dddc669a206eb90da73c4068d9da9bf2b995de0f9cc31d3165f6279b1ec4f849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dddc669a206eb90da73c4068d9da9bf2b995de0f9cc31d3165f6279b1ec4f849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dddc669a206eb90da73c4068d9da9bf2b995de0f9cc31d3165f6279b1ec4f849", kill_on_drop: false }`
[INFO] [stdout] dddc669a206eb90da73c4068d9da9bf2b995de0f9cc31d3165f6279b1ec4f849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a99dbfd99ea92d1a17e33b825f39ebee528a92f112b215d028372b201f389325
[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" "a99dbfd99ea92d1a17e33b825f39ebee528a92f112b215d028372b201f389325", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling llvm-alt v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cbox v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling llvm-sys v120.0.0
[INFO] [stdout] error: No suitable version of LLVM was found system-wide or pointed
[INFO] [stdout]        to by LLVM_SYS_120_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/github.com-1ecc6299db9ec823/llvm-sys-120.0.0/src/lib.rs:486:1
[INFO] [stdout]     |
[INFO] [stdout] 486 | / std::compile_error!(concat!(
[INFO] [stdout] 487 | |     "No suitable version of LLVM was found system-wide or pointed
[INFO] [stdout] 488 | |        to by LLVM_SYS_",
[INFO] [stdout] 489 | |     env!("CARGO_PKG_VERSION_MAJOR"),
[INFO] [stdout] ...   |
[INFO] [stdout] 496 | |        llvmenv: https://crates.io/crates/llvmenv"
[INFO] [stdout] 497 | | ));
[INFO] [stdout]     | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `llvm-sys`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a99dbfd99ea92d1a17e33b825f39ebee528a92f112b215d028372b201f389325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99dbfd99ea92d1a17e33b825f39ebee528a92f112b215d028372b201f389325", kill_on_drop: false }`
[INFO] [stdout] a99dbfd99ea92d1a17e33b825f39ebee528a92f112b215d028372b201f389325