[INFO] fetching crate libdw-sys 0.0.6...
[INFO] checking libdw-sys-0.0.6 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate libdw-sys 0.0.6 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate libdw-sys 0.0.6 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libdw-sys 0.0.6
[INFO] finished tweaking crates.io crate libdw-sys 0.0.6
[INFO] tweaked toml for crates.io crate libdw-sys 0.0.6 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b674ab24e3765c3daf4a0bdbfa889f93201450d3a44505eba94b1a56a400a4e4
[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" "b674ab24e3765c3daf4a0bdbfa889f93201450d3a44505eba94b1a56a400a4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b674ab24e3765c3daf4a0bdbfa889f93201450d3a44505eba94b1a56a400a4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b674ab24e3765c3daf4a0bdbfa889f93201450d3a44505eba94b1a56a400a4e4", kill_on_drop: false }`
[INFO] [stdout] b674ab24e3765c3daf4a0bdbfa889f93201450d3a44505eba94b1a56a400a4e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba0e1a6c3fadfed7319beab4ba4ec57f8d46beb1df65c16d2d60da1ab9d9050f
[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" "ba0e1a6c3fadfed7319beab4ba4ec57f8d46beb1df65c16d2d60da1ab9d9050f", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling libelf-sys v0.0.6
[INFO] [stderr]    Compiling libdw-sys v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `target_supported` in crate `pkg_config`
[INFO] [stdout]  --> build.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 |     assert!(pkg_config::target_supported());
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^ not found in `pkg_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `target_supported` in crate `pkg_config`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libelf-sys-0.0.6/build.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 |     assert!(pkg_config::target_supported());
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^ not found in `pkg_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libdw-sys`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ba0e1a6c3fadfed7319beab4ba4ec57f8d46beb1df65c16d2d60da1ab9d9050f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba0e1a6c3fadfed7319beab4ba4ec57f8d46beb1df65c16d2d60da1ab9d9050f", kill_on_drop: false }`
[INFO] [stdout] ba0e1a6c3fadfed7319beab4ba4ec57f8d46beb1df65c16d2d60da1ab9d9050f