[INFO] fetching crate passwd_gen 0.1.1...
[INFO] checking passwd_gen-0.1.1 against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] extracting crate passwd_gen 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate passwd_gen 0.1.1
[INFO] finished tweaking crates.io crate passwd_gen 0.1.1
[INFO] tweaked toml for crates.io crate passwd_gen 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate passwd_gen 0.1.1 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 passwd_gen 0.1.1 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:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | 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: binary `passwd_gen` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-6-tc2/source/target/.../passwd_gen
[INFO] [stderr]    |                                                  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `passwd-gen`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 - name = "passwd_gen"
[INFO] [stderr] 18 + name = "passwd-gen"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `passwd-gen`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:22:19
[INFO] [stderr]    |
[INFO] [stderr] 22 ~ version = "0.1.1"
[INFO] [stderr] 23 + [[bin]]
[INFO] [stderr] 24 + name = "passwd-gen"
[INFO] [stderr] 25 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `passwd_gen` (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] c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba
[INFO] running `Command { std: "docker" "start" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba", 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" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba", 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" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba" "/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:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | 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: binary `passwd_gen` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../passwd_gen
[INFO] [stderr]    |                          ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `passwd-gen`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 - name = "passwd_gen"
[INFO] [stderr] 18 + name = "passwd-gen"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `passwd-gen`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:22:19
[INFO] [stderr]    |
[INFO] [stderr] 22 ~ version = "0.1.1"
[INFO] [stderr] 23 + [[bin]]
[INFO] [stderr] 24 + name = "passwd-gen"
[INFO] [stderr] 25 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `passwd_gen` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking gethostname v0.2.2
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking clap v3.0.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking thiserror v1.0.30
[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] running `Command { std: "docker" "inspect" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba", kill_on_drop: false }`
[INFO] [stdout] c68178cb62bb102a59a89c6097e5cf8d67addb15fa712b1a3704139d06d135ba
