[INFO] fetching crate cakerabbit-core 0.1.3...
[INFO] checking cakerabbit-core-0.1.3 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate cakerabbit-core 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cakerabbit-core 0.1.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cakerabbit-core 0.1.3
[INFO] tweaked toml for crates.io crate cakerabbit-core 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cakerabbit-core 0.1.3 on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cakerabbit-core 0.1.3 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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1
[INFO] running `Command { std: "docker" "start" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1", 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" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1", 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 --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]     Checking rand_xorshift v0.1.1
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[INFO] [stderr]    Compiling num-integer v0.1.44
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[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]    Compiling tokio v1.10.1
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking local_ipaddress v0.1.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rmpv v0.4.7
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking uuid v0.7.4
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[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.23.1/src/unistd.rs:855:56
[INFO] [stdout]     |
[INFO] [stdout] 855 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.23.1/src/unistd.rs:855:56
[INFO] [stdout]     |
[INFO] [stdout] 855 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: requested on the command line with `--force-warn invalid-c-variadic-arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr] error: could not compile `nix` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1", kill_on_drop: false }`
[INFO] [stdout] c3804a35cf9fe80221ec39e6fc3853cc2dd028fb10e138a5b8946abb7e4657d1
