[INFO] fetching crate gmp-mpfr-sys 1.7.1...
[INFO] checking gmp-mpfr-sys-1.7.1 against try#dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e for pr-153721
[INFO] extracting crate gmp-mpfr-sys 1.7.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate gmp-mpfr-sys 1.7.1
[INFO] finished tweaking crates.io crate gmp-mpfr-sys 1.7.1
[INFO] tweaked toml for crates.io crate gmp-mpfr-sys 1.7.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gmp-mpfr-sys 1.7.1 on toolchain dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gmp-mpfr-sys 1.7.1 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" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528
[INFO] running `Command { std: "docker" "start" "d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528", 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" "d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528" "/opt/rustwide/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528", 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" "d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528" "/opt/rustwide/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]   --> build.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[cfg(unix)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(misleading_cfg_in_build_script)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]   --> build.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[cfg(windows)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]     --> build.rs:1188:7
[INFO] [stdout]      |
[INFO] [stdout] 1188 | #[cfg(unix)]
[INFO] [stdout]      |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]     --> build.rs:1196:7
[INFO] [stdout]      |
[INFO] [stdout] 1196 | #[cfg(windows)]
[INFO] [stdout]      |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]     --> build.rs:1269:11
[INFO] [stdout]      |
[INFO] [stdout] 1269 |     #[cfg(target_os = "windows")]
[INFO] [stdout]      |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]     --> build.rs:1298:15
[INFO] [stdout]      |
[INFO] [stdout] 1298 |     #[cfg(any(target_os = "macos", target_os = "ios"))]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]     --> build.rs:1304:19
[INFO] [stdout]      |
[INFO] [stdout] 1304 |     #[cfg(not(any(target_os = "windows", target_os = "macos", target_os = "ios")))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gmp-mpfr-sys` (build script) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528", kill_on_drop: false }`
[INFO] [stdout] d2f1cd83d125ba1b59d60ef2a6709d8e9fae25f7909fb1e3748df4a161ceb528