[INFO] fetching crate unifier_set 0.2.0... [INFO] checking unifier_set-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate unifier_set 0.2.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate unifier_set 0.2.0 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 crates.io crate unifier_set 0.2.0 [INFO] finished tweaking crates.io crate unifier_set 0.2.0 [INFO] tweaked toml for crates.io crate unifier_set 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 4 packages to latest compatible versions [INFO] [stderr] Adding archery v0.4.0 (available: v1.2.1) [INFO] [stderr] Adding rpds v0.12.0 (available: v1.1.0) [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b6d35253e465ae1ea61eeac111733014a1aaf69e61648875fa2bd285db682919 [INFO] running `Command { std: "docker" "start" "-a" "b6d35253e465ae1ea61eeac111733014a1aaf69e61648875fa2bd285db682919", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b6d35253e465ae1ea61eeac111733014a1aaf69e61648875fa2bd285db682919", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b6d35253e465ae1ea61eeac111733014a1aaf69e61648875fa2bd285db682919", kill_on_drop: false }` [INFO] [stdout] b6d35253e465ae1ea61eeac111733014a1aaf69e61648875fa2bd285db682919 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6787ece3ce8e2ac2032746d5ad1c2505c06a2bdbac4d1927a05ad2afe06d03ce [INFO] running `Command { std: "docker" "start" "-a" "6787ece3ce8e2ac2032746d5ad1c2505c06a2bdbac4d1927a05ad2afe06d03ce", kill_on_drop: false }` [INFO] [stderr] Checking archery v0.4.0 [INFO] [stderr] Checking dot_graph v0.2.3 [INFO] [stderr] Checking rpds v0.12.0 [INFO] [stderr] Checking unifier_set v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/unit_tests/mod.rs:58:34 [INFO] [stdout] | [INFO] [stdout] 58 | Pred(h, cs) => Pred(h.clone(), cs.iter().map(f).collect()), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s [INFO] running `Command { std: "docker" "inspect" "6787ece3ce8e2ac2032746d5ad1c2505c06a2bdbac4d1927a05ad2afe06d03ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6787ece3ce8e2ac2032746d5ad1c2505c06a2bdbac4d1927a05ad2afe06d03ce", kill_on_drop: false }` [INFO] [stdout] 6787ece3ce8e2ac2032746d5ad1c2505c06a2bdbac4d1927a05ad2afe06d03ce