[INFO] cloning repository https://github.com/photowey/snowflake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/photowey/snowflake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphotowey%2Fsnowflake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphotowey%2Fsnowflake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 608c74b0b3def07af799f2733df218a9148e0dfd
[INFO] checking photowey/snowflake against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphotowey%2Fsnowflake" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/photowey/snowflake
[INFO] finished tweaking git repo https://github.com/photowey/snowflake
[INFO] tweaked toml for git repo https://github.com/photowey/snowflake written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/photowey/snowflake 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 git repo https://github.com/photowey/snowflake 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:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | 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:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | homepage = "https://github.com/photowey/snowflake"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 | repository = "https://github.com/photowey/snowflake"
[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: `snowflaker` (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4
[INFO] running `Command { std: "docker" "start" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4", 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" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4", 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" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4" "/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:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | 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:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | homepage = "https://github.com/photowey/snowflake"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 | repository = "https://github.com/photowey/snowflake"
[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: `snowflaker` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking memoffset v0.6.5
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking chronounit v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[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" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4", kill_on_drop: false }`
[INFO] [stdout] 89c9cabe77cbb97f9f37e42017cc0251b9bf4a12907b48bc2445e5b24425b7c4
