[INFO] fetching crate llvm-sys 100.2.1...
[INFO] checking llvm-sys-100.2.1 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate llvm-sys 100.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate llvm-sys 100.2.1 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate llvm-sys 100.2.1
[INFO] finished tweaking crates.io crate llvm-sys 100.2.1
[INFO] tweaked toml for crates.io crate llvm-sys 100.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate llvm-sys 100.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e677fc24b828151fc6e2337768f8acf5a8033194bf5f076cb1faf01fe329a040
[INFO] running `Command { std: "docker" "start" "-a" "e677fc24b828151fc6e2337768f8acf5a8033194bf5f076cb1faf01fe329a040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e677fc24b828151fc6e2337768f8acf5a8033194bf5f076cb1faf01fe329a040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e677fc24b828151fc6e2337768f8acf5a8033194bf5f076cb1faf01fe329a040", kill_on_drop: false }`
[INFO] [stdout] e677fc24b828151fc6e2337768f8acf5a8033194bf5f076cb1faf01fe329a040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93d1a2c42e8d1d0052f0e4e00e84cebc29ccbcc5ee7d9361876c54a52f5b1ee1
[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" "93d1a2c42e8d1d0052f0e4e00e84cebc29ccbcc5ee7d9361876c54a52f5b1ee1", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling llvm-sys v100.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> build.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | /// Environment variables that can guide compilation
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> build.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | ///
[INFO] [stdout]    | ^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> build.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | /// When adding new ones, they should also be added to main() to force a
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> build.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | /// rebuild if they are changed.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> build.rs:226:23
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let version_str = try!(llvm_config_ex(binary.as_ref(), "--version"));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> examples/jit-function.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut ee = mem::uninitialized();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.46s
[INFO] running `Command { std: "docker" "inspect" "93d1a2c42e8d1d0052f0e4e00e84cebc29ccbcc5ee7d9361876c54a52f5b1ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d1a2c42e8d1d0052f0e4e00e84cebc29ccbcc5ee7d9361876c54a52f5b1ee1", kill_on_drop: false }`
[INFO] [stdout] 93d1a2c42e8d1d0052f0e4e00e84cebc29ccbcc5ee7d9361876c54a52f5b1ee1