[INFO] crate libelf-sys 0.0.6 is already in cache
[INFO] checking libelf-sys-0.0.6 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] extracting crate libelf-sys 0.0.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libelf-sys 0.0.6 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libelf-sys 0.0.6
[INFO] finished tweaking crates.io crate libelf-sys 0.0.6
[INFO] tweaked toml for crates.io crate libelf-sys 0.0.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39c5910f971f0cb21ad9f1f9c4bc30c7a077ae4268cafbf1deafd5c834e7aad4
[INFO] running `"docker" "start" "-a" "39c5910f971f0cb21ad9f1f9c4bc30c7a077ae4268cafbf1deafd5c834e7aad4"`
[INFO] [stderr]    Compiling libelf-sys v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find function `target_supported` in crate `pkg_config`
[INFO] [stderr]  --> build.rs:4:25
[INFO] [stderr]   |
[INFO] [stderr] 4 |     assert!(pkg_config::target_supported());
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^ not found in `pkg_config`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `libelf-sys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "39c5910f971f0cb21ad9f1f9c4bc30c7a077ae4268cafbf1deafd5c834e7aad4"`
[INFO] running `"docker" "rm" "-f" "39c5910f971f0cb21ad9f1f9c4bc30c7a077ae4268cafbf1deafd5c834e7aad4"`
[INFO] [stdout] 39c5910f971f0cb21ad9f1f9c4bc30c7a077ae4268cafbf1deafd5c834e7aad4