[INFO] fetching crate ipp-headers-sys 0.4.3...
[INFO] checking ipp-headers-sys-0.4.3 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate ipp-headers-sys 0.4.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ipp-headers-sys 0.4.3 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b4126fb1e1bd184e6cb9c5a8b00689e3b21e372e4b8f535dd3ebb18c7ca6096
[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" "7b4126fb1e1bd184e6cb9c5a8b00689e3b21e372e4b8f535dd3ebb18c7ca6096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b4126fb1e1bd184e6cb9c5a8b00689e3b21e372e4b8f535dd3ebb18c7ca6096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4126fb1e1bd184e6cb9c5a8b00689e3b21e372e4b8f535dd3ebb18c7ca6096", kill_on_drop: false }`
[INFO] [stdout] 7b4126fb1e1bd184e6cb9c5a8b00689e3b21e372e4b8f535dd3ebb18c7ca6096
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f982782cd47b744439e63a48b301f857961222ded08a85065e9d1a29b6583f14
[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" "f982782cd47b744439e63a48b301f857961222ded08a85065e9d1a29b6583f14", kill_on_drop: false }`
[INFO] [stderr]     Checking 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`
[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] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f982782cd47b744439e63a48b301f857961222ded08a85065e9d1a29b6583f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f982782cd47b744439e63a48b301f857961222ded08a85065e9d1a29b6583f14", kill_on_drop: false }`
[INFO] [stdout] f982782cd47b744439e63a48b301f857961222ded08a85065e9d1a29b6583f14