[INFO] fetching crate libR-sys 0.7.1...
[INFO] checking libR-sys-0.7.1 against try#dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e for pr-153721
[INFO] extracting crate libR-sys 0.7.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate libR-sys 0.7.1
[INFO] finished tweaking crates.io crate libR-sys 0.7.1
[INFO] tweaked toml for crates.io crate libR-sys 0.7.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libR-sys 0.7.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0
[INFO] running `Command { std: "docker" "start" "ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0", 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" "ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0" "/opt/rustwide/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0", 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" "ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0" "/opt/rustwide/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libR-sys v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]   --> build.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(target_family = "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:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg(target_family = "windows")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]   --> build.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 | #[cfg(target_family = "unix")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]   --> build.rs:86:7
[INFO] [stdout]    |
[INFO] [stdout] 86 | #[cfg(target_family = "windows")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]    --> build.rs:103:7
[INFO] [stdout]     |
[INFO] [stdout] 103 | #[cfg(target_family = "windows")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]    --> build.rs:132:7
[INFO] [stdout]     |
[INFO] [stdout] 132 | #[cfg(target_family = "windows")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]   --> build.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |         if cfg!(windows) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^ help: use cargo environment variables if possible: `std::env::var("CARGO_CFG_WINDOWS").is_ok()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: target-based cfg should be avoided in build scripts
[INFO] [stdout]    --> build.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 |     match (cfg!(windows), pkg_target_arch.as_str()) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^ help: use cargo environment variables if possible: `std::env::var("CARGO_CFG_WINDOWS").is_ok()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |     InvalidEnvVar(&'static str),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 72 -     InvalidEnvVar(&'static str),
[INFO] [stdout] 72 +     InvalidEnvVar(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |     RInvocationError(io::Error),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 73 -     RInvocationError(io::Error),
[INFO] [stdout] 73 +     RInvocationError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     InvalidROutput(&'static str),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 74 -     InvalidROutput(&'static str),
[INFO] [stdout] 74 +     InvalidROutput(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libR-sys` (build script) due to 8 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0", kill_on_drop: false }`
[INFO] [stdout] ddc4c68d729950da76a370be533fb09bde0f63315396c4cdb0bfc335220a9db0