[INFO] fetching crate heartbeat-server 0.1.0...
[INFO] checking heartbeat-server-0.1.0 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate heartbeat-server 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate heartbeat-server 0.1.0
[INFO] finished tweaking crates.io crate heartbeat-server 0.1.0
[INFO] tweaked toml for crates.io crate heartbeat-server 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate heartbeat-server 0.1.0 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] crate crates.io crate heartbeat-server 0.1.0 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-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] 1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa
[INFO] running `Command { std: "docker" "start" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa", 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" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa", 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" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking easy-parallel v3.2.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]    Compiling inlinable_string v0.1.15
[INFO] [stderr]     Checking async-task v4.1.0
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking async-broadcast v0.3.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking ordered-stream v0.0.1
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling multer v2.0.2
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]    Compiling anyhow v1.0.54
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling state v0.5.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling rocket v0.5.0-rc.1
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking quoted_printable v0.4.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]     Checking webpki-roots v0.22.2
[INFO] [stderr]    Compiling devise_core v0.3.1
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling h2 v0.3.11
[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 serde_derive v1.0.136
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling enumflags2_derive v0.7.3
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling derivative v2.2.0
[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" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa", kill_on_drop: false }`
[INFO] [stdout] 1db5e5be515275ab87105d6f91951c537be2e49816595554a47309adb4d174aa
