[INFO] fetching crate ipp-headers-sys 0.4.3...
[INFO] testing ipp-headers-sys-0.4.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ipp-headers-sys 0.4.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate ipp-headers-sys 0.4.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipp-headers-sys 0.4.3
[INFO] finished tweaking crates.io crate ipp-headers-sys 0.4.3
[INFO] tweaked toml for crates.io crate ipp-headers-sys 0.4.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31a9e30afa6118fd47abfc12bf6879a9f6015727fae88bb2a75613f4ffd83490
[INFO] running `Command { std: "docker" "start" "-a" "31a9e30afa6118fd47abfc12bf6879a9f6015727fae88bb2a75613f4ffd83490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31a9e30afa6118fd47abfc12bf6879a9f6015727fae88bb2a75613f4ffd83490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a9e30afa6118fd47abfc12bf6879a9f6015727fae88bb2a75613f4ffd83490", kill_on_drop: false }`
[INFO] [stdout] 31a9e30afa6118fd47abfc12bf6879a9f6015727fae88bb2a75613f4ffd83490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35c39df755c57a0db72106335ba6beae06d6277297961f63b2cf899fcbd4cadb
[INFO] running `Command { std: "docker" "start" "-a" "35c39df755c57a0db72106335ba6beae06d6277297961f63b2cf899fcbd4cadb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ipp-headers-sys v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: You are attempting to compile without a required feature flag being used. You must use one of either `2017`, `2018`, `2019`
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | / compile_error!("You are attempting to compile without a required feature flag \
[INFO] [stdout] 38 | |     being used. You must use one of either `2017`, `2018`, `2019`");
[INFO] [stdout]    | |____________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipp-headers-sys` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "35c39df755c57a0db72106335ba6beae06d6277297961f63b2cf899fcbd4cadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35c39df755c57a0db72106335ba6beae06d6277297961f63b2cf899fcbd4cadb", kill_on_drop: false }`
[INFO] [stdout] 35c39df755c57a0db72106335ba6beae06d6277297961f63b2cf899fcbd4cadb