[INFO] crate tango-client-sys 0.1.2 is already in cache
[INFO] checking tango-client-sys-0.1.2 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate tango-client-sys 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tango-client-sys 0.1.2 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tango-client-sys 0.1.2
[INFO] finished tweaking crates.io crate tango-client-sys 0.1.2
[INFO] tweaked toml for crates.io crate tango-client-sys 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9c6eb1b231ff316ae0441cdebce3374b9dcef6ae406e58c5d5a1a4a0f64a8298
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9c6eb1b231ff316ae0441cdebce3374b9dcef6ae406e58c5d5a1a4a0f64a8298"`
[INFO] [stderr]    Compiling tango-client-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `tango-client-sys v0.1.2 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/tango-client-sys-7e033f79e8eba0b0/build-script-build` (exit code: 1)
[INFO] [stderr] --- stdout
[INFO] [stderr] `"pkg-config" "--libs" "--cflags" "tango"` did not exit successfully: exit code: 1
[INFO] [stderr] --- stderr
[INFO] [stderr] Package tango was not found in the pkg-config search path.
[INFO] [stderr] Perhaps you should add the directory containing `tango.pc'
[INFO] [stderr] to the PKG_CONFIG_PATH environment variable
[INFO] [stderr] No package 'tango' found
[INFO] [stderr] ---
[INFO] running `"docker" "inspect" "9c6eb1b231ff316ae0441cdebce3374b9dcef6ae406e58c5d5a1a4a0f64a8298"`
[INFO] running `"docker" "rm" "-f" "9c6eb1b231ff316ae0441cdebce3374b9dcef6ae406e58c5d5a1a4a0f64a8298"`
[INFO] [stdout] 9c6eb1b231ff316ae0441cdebce3374b9dcef6ae406e58c5d5a1a4a0f64a8298