[INFO] crate newt-sys 0.1.6 is already in cache
[INFO] checking newt-sys-0.1.6 against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] extracting crate newt-sys 0.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate newt-sys 0.1.6 on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate newt-sys 0.1.6
[INFO] finished tweaking crates.io crate newt-sys 0.1.6
[INFO] tweaked toml for crates.io crate newt-sys 0.1.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fb40eed40bed4baeb3e8e23fe8127b19028d0d3ae9c4e26e1b178affe5b3bd2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fb40eed40bed4baeb3e8e23fe8127b19028d0d3ae9c4e26e1b178affe5b3bd2d"`
[INFO] [stderr]    Compiling newt-sys v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `extern` block uses type `[__va_list_tag; 1]`, which is not FFI-safe
[INFO] [stderr]     --> src/lib.rs:1926:15
[INFO] [stderr]      |
[INFO] [stderr] 1926 |         args: va_list,
[INFO] [stderr]      |               ^^^^^^^ not FFI-safe
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]      = help: consider passing a pointer to the array
[INFO] [stderr]      = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[__va_list_tag; 1]`, which is not FFI-safe
[INFO] [stderr]     --> src/lib.rs:1949:15
[INFO] [stderr]      |
[INFO] [stderr] 1949 |         argv: va_list,
[INFO] [stderr]      |               ^^^^^^^ not FFI-safe
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider passing a pointer to the array
[INFO] [stderr]      = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[__va_list_tag; 1]`, which is not FFI-safe
[INFO] [stderr]     --> src/lib.rs:1926:15
[INFO] [stderr]      |
[INFO] [stderr] 1926 |         args: va_list,
[INFO] [stderr]      |               ^^^^^^^ not FFI-safe
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]      = help: consider passing a pointer to the array
[INFO] [stderr]      = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[__va_list_tag; 1]`, which is not FFI-safe
[INFO] [stderr]     --> src/lib.rs:1949:15
[INFO] [stderr]      |
[INFO] [stderr] 1949 |         argv: va_list,
[INFO] [stderr]      |               ^^^^^^^ not FFI-safe
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider passing a pointer to the array
[INFO] [stderr]      = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.06s
[INFO] running `"docker" "inspect" "fb40eed40bed4baeb3e8e23fe8127b19028d0d3ae9c4e26e1b178affe5b3bd2d"`
[INFO] running `"docker" "rm" "-f" "fb40eed40bed4baeb3e8e23fe8127b19028d0d3ae9c4e26e1b178affe5b3bd2d"`
[INFO] [stdout] fb40eed40bed4baeb3e8e23fe8127b19028d0d3ae9c4e26e1b178affe5b3bd2d