[INFO] fetching crate silhouette 0.1.0...
[INFO] checking silhouette-0.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate silhouette 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate silhouette 0.1.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate silhouette 0.1.0
[INFO] finished tweaking crates.io crate silhouette 0.1.0
[INFO] tweaked toml for crates.io crate silhouette 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages to latest compatible versions
[INFO] [stderr]       Adding dashmap v5.5.3 (available: v6.1.0)
[INFO] [stderr]       Adding serial_test v2.0.0 (available: v3.1.1)
[INFO] [stderr]       Adding serial_test_derive v2.0.0 (available: v3.1.1)
[INFO] [stderr]       Adding try_default v1.0.1 (available: v2.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bbb696bf0576bf82a71478902785889e5f00ea4ca514a7a6812d8ee2a7a8deb
[INFO] running `Command { std: "docker" "start" "-a" "9bbb696bf0576bf82a71478902785889e5f00ea4ca514a7a6812d8ee2a7a8deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bbb696bf0576bf82a71478902785889e5f00ea4ca514a7a6812d8ee2a7a8deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bbb696bf0576bf82a71478902785889e5f00ea4ca514a7a6812d8ee2a7a8deb", kill_on_drop: false }`
[INFO] [stdout] 9bbb696bf0576bf82a71478902785889e5f00ea4ca514a7a6812d8ee2a7a8deb
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 726bab6f5c4a40330d3cb53afe5e7a5251ac41a18b7bd0b765383bcbb7d5be61
[INFO] running `Command { std: "docker" "start" "-a" "726bab6f5c4a40330d3cb53afe5e7a5251ac41a18b7bd0b765383bcbb7d5be61", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling serial_test_derive v2.0.0
[INFO] [stderr]     Checking serial_test v2.0.0
[INFO] [stderr]     Checking silhouette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.01s
[INFO] running `Command { std: "docker" "inspect" "726bab6f5c4a40330d3cb53afe5e7a5251ac41a18b7bd0b765383bcbb7d5be61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "726bab6f5c4a40330d3cb53afe5e7a5251ac41a18b7bd0b765383bcbb7d5be61", kill_on_drop: false }`
[INFO] [stdout] 726bab6f5c4a40330d3cb53afe5e7a5251ac41a18b7bd0b765383bcbb7d5be61