[INFO] fetching crate libubox-sys 0.2.0...
[INFO] checking libubox-sys-0.2.0 against try#f4690f24e7d9bcb0b168a02b06dd61391e8bd55a for pr-157814-crater-rollup
[INFO] extracting crate libubox-sys 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate libubox-sys 0.2.0
[INFO] finished tweaking crates.io crate libubox-sys 0.2.0
[INFO] tweaked toml for crates.io crate libubox-sys 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libubox-sys 0.2.0 on toolchain f4690f24e7d9bcb0b168a02b06dd61391e8bd55a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libubox-sys 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d
[INFO] running `Command { std: "docker" "start" "47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d" "/opt/rustwide/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d" "/opt/rustwide/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]    Compiling cmake v0.1.58
[INFO] [stderr]    Compiling libubox-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]    --> build.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 155 |     if cfg!(target_os = "linux") {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use cargo environment variables if possible: `std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default() == "linux"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(misleading_cfg_in_build_script)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libubox-sys` (build script) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d", kill_on_drop: false }`
[INFO] [stdout] 47ba98d98953da24a4e5160f537b7d05a1a163c91cae16fa691a0acb33f5823d
