[INFO] fetching crate em-app 0.5.3...
[INFO] checking em-app-0.5.3 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate em-app 0.5.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate em-app 0.5.3
[INFO] finished tweaking crates.io crate em-app 0.5.3
[INFO] tweaked toml for crates.io crate em-app 0.5.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate em-app 0.5.3 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 em-app 0.5.3 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] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | 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: `em-app` (manifest) generated 1 warning
[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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3
[INFO] running `Command { std: "docker" "start" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3", 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" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3", 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" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3" "/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:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | 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: `em-app` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.5
[INFO] [stderr]    Compiling rustix v0.38.10
[INFO] [stderr]    Compiling prettyplease v0.2.17
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling libloading v0.7.2
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling cc v1.2.46
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking traitobject v0.1.1
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking b64-ct v0.1.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.115
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling mbedtls-platform-support v0.1.1
[INFO] [stderr]    Compiling mbedtls v0.13.6
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking yasna v0.2.2
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.20.2/src/unistd.rs:854:56
[INFO] [stdout]     |
[INFO] [stdout] 854 |                       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-0.20.2/src/unistd.rs:854:56
[INFO] [stdout]     |
[INFO] [stdout] 854 |                       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" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3", kill_on_drop: false }`
[INFO] [stdout] 299fbd6b84c36a8e787572635929768221fe773a809c25f0b481da13bcf8bfd3
