[INFO] crate tango-client-sys 0.1.0 is already in cache
[INFO] extracting crate tango-client-sys 0.1.0 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/tango-client-sys/0.1.0
[INFO] extracting crate tango-client-sys 0.1.0 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/tango-client-sys/0.1.0
[INFO] validating manifest of tango-client-sys-0.1.0 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tango-client-sys-0.1.0 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tango-client-sys-0.1.0
[INFO] finished frobbing tango-client-sys-0.1.0
[INFO] frobbed toml for tango-client-sys-0.1.0 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/tango-client-sys/0.1.0/Cargo.toml
[INFO] started frobbing tango-client-sys-0.1.0
[INFO] finished frobbing tango-client-sys-0.1.0
[INFO] frobbed toml for tango-client-sys-0.1.0 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/tango-client-sys/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tango-client-sys-0.1.0 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/tango-client-sys/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7172d1eafc5ae472a0824a83abb7a6517fcd6ed703b8581b2cbdd36ff63e4f49
[INFO] running `"docker" "start" "-a" "7172d1eafc5ae472a0824a83abb7a6517fcd6ed703b8581b2cbdd36ff63e4f49"`
[INFO] [stderr]    Compiling tango-client-sys v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `tango-client-sys v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/tango-client-sys-bb5ae563e2ee34f8/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" "7172d1eafc5ae472a0824a83abb7a6517fcd6ed703b8581b2cbdd36ff63e4f49"`
[INFO] running `"docker" "rm" "-f" "7172d1eafc5ae472a0824a83abb7a6517fcd6ed703b8581b2cbdd36ff63e4f49"`
[INFO] [stdout] 7172d1eafc5ae472a0824a83abb7a6517fcd6ed703b8581b2cbdd36ff63e4f49