[INFO] cloning repository https://github.com/KingZJ/design-pattern-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KingZJ/design-pattern-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKingZJ%2Fdesign-pattern-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKingZJ%2Fdesign-pattern-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 393cbe5fcecfb3f9351a161c04fa933ae737809f
[INFO] checking KingZJ/design-pattern-rs/393cbe5fcecfb3f9351a161c04fa933ae737809f against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKingZJ%2Fdesign-pattern-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KingZJ/design-pattern-rs on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KingZJ/design-pattern-rs
[INFO] finished tweaking git repo https://github.com/KingZJ/design-pattern-rs
[INFO] tweaked toml for git repo https://github.com/KingZJ/design-pattern-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KingZJ/design-pattern-rs 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfa340e95fe9e841919e70b7fcf722ef38f9129c5f1864d951a076896670a8ec
[INFO] running `Command { std: "docker" "start" "-a" "dfa340e95fe9e841919e70b7fcf722ef38f9129c5f1864d951a076896670a8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfa340e95fe9e841919e70b7fcf722ef38f9129c5f1864d951a076896670a8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa340e95fe9e841919e70b7fcf722ef38f9129c5f1864d951a076896670a8ec", kill_on_drop: false }`
[INFO] [stdout] dfa340e95fe9e841919e70b7fcf722ef38f9129c5f1864d951a076896670a8ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b08851ac095515a99b3f76c9364e0676a61f2a0f3417f06cb95894c7e32a0287
[INFO] running `Command { std: "docker" "start" "-a" "b08851ac095515a99b3f76c9364e0676a61f2a0f3417f06cb95894c7e32a0287", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking design-pattern-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/creational/singleton.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         CONF.as_mut_ptr().write(Mutex::new(Singleton));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/creational/singleton.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     unsafe { &*CONF.as_ptr() }
[INFO] [stdout]    |                ^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/creational/singleton.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         CONF.as_mut_ptr().write(Mutex::new(Singleton));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/creational/singleton.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     unsafe { &*CONF.as_ptr() }
[INFO] [stdout]    |                ^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "b08851ac095515a99b3f76c9364e0676a61f2a0f3417f06cb95894c7e32a0287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08851ac095515a99b3f76c9364e0676a61f2a0f3417f06cb95894c7e32a0287", kill_on_drop: false }`
[INFO] [stdout] b08851ac095515a99b3f76c9364e0676a61f2a0f3417f06cb95894c7e32a0287