[INFO] fetching crate weechat 0.4.0...
[INFO] checking weechat-0.4.0 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate weechat 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate weechat 0.4.0
[INFO] finished tweaking crates.io crate weechat 0.4.0
[INFO] tweaked toml for crates.io crate weechat 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate weechat 0.4.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 119 packages to highest compatible versions
[INFO] [stderr]       Adding strum v0.19.5 (available: v0.28.0)
[INFO] [stderr]       Adding strum_macros v0.19.4 (available: v0.28.0)
[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] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 | homepage = "https://github.com/poljar/rust-weechat/"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 68 | repository = "https://github.com/poljar/rust-weechat/"
[INFO] [stderr]    |              -----------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `weechat` (manifest) generated 2 warnings
[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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b
[INFO] running `Command { std: "docker" "start" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b", 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" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b", 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" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 | homepage = "https://github.com/poljar/rust-weechat/"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 68 | repository = "https://github.com/poljar/rust-weechat/"
[INFO] [stderr]    |              -----------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `weechat` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling value-bag v1.14.1
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling clang-sys v1.9.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]     Checking piper v0.2.5
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking strum v0.19.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]    Compiling log v0.4.34
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking futures-util v0.3.34
[INFO] [stderr]     Checking async-executor v1.14.0
[INFO] [stderr]     Checking blocking v1.7.0
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.17.0/src/unistd.rs:833:56
[INFO] [stdout]     |
[INFO] [stdout] 833 |                       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-0.17.0/src/unistd.rs:833:56
[INFO] [stdout]     |
[INFO] [stdout] 833 |                       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] 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" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b", kill_on_drop: false }`
[INFO] [stdout] 304fdd56a7e8ddccabebc7942886560739c48a418cf1f0d9cdceccd2764ff79b
