[INFO] crate hifb-sys 0.1.8 is already in cache
[INFO] testing hifb-sys-0.1.8 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate hifb-sys 0.1.8 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hifb-sys 0.1.8 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hifb-sys 0.1.8
[INFO] finished tweaking crates.io crate hifb-sys 0.1.8
[INFO] tweaked toml for crates.io crate hifb-sys 0.1.8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb1aaa0f738b8a2701609122c723dde1e6d568f78dd820d81eb45c4e4d3a6f21
[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" "eb1aaa0f738b8a2701609122c723dde1e6d568f78dd820d81eb45c4e4d3a6f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb1aaa0f738b8a2701609122c723dde1e6d568f78dd820d81eb45c4e4d3a6f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb1aaa0f738b8a2701609122c723dde1e6d568f78dd820d81eb45c4e4d3a6f21", kill_on_drop: false }`
[INFO] [stdout] eb1aaa0f738b8a2701609122c723dde1e6d568f78dd820d81eb45c4e4d3a6f21
[INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f74611777dc4a6356a5e739a12da6c65a034c60f53f039641578f1285e960dbb
[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" "f74611777dc4a6356a5e739a12da6c65a034c60f53f039641578f1285e960dbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling hifb-sys v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `union_fields_prefix` found for struct `bindgen::Builder` in the current scope
[INFO] [stdout]    --> build.rs:189:10
[INFO] [stdout]     |
[INFO] [stdout] 189 |         .union_fields_prefix("un")
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^ method not found in `bindgen::Builder`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hifb-sys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f74611777dc4a6356a5e739a12da6c65a034c60f53f039641578f1285e960dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f74611777dc4a6356a5e739a12da6c65a034c60f53f039641578f1285e960dbb", kill_on_drop: false }`
[INFO] [stdout] f74611777dc4a6356a5e739a12da6c65a034c60f53f039641578f1285e960dbb