[INFO] fetching crate prometheus-manager 0.0.30...
[INFO] checking prometheus-manager-0.0.30 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate prometheus-manager 0.0.30 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate prometheus-manager 0.0.30 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 prometheus-manager 0.0.30
[INFO] finished tweaking crates.io crate prometheus-manager 0.0.30
[INFO] tweaked toml for crates.io crate prometheus-manager 0.0.30 written to /workspace/builds/worker-2-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 72 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.5)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding rust-embed v6.8.1 (available: v8.5.0)
[INFO] [stderr]       Adding rust-embed-impl v6.8.1 (available: v8.5.0)
[INFO] [stderr]       Adding rust-embed-utils v7.8.1 (available: v8.5.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2622da7f955355aafd28e40bd29a3c62edfb37463d35082bfa02ab28bbbb0f1f
[INFO] running `Command { std: "docker" "start" "-a" "2622da7f955355aafd28e40bd29a3c62edfb37463d35082bfa02ab28bbbb0f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2622da7f955355aafd28e40bd29a3c62edfb37463d35082bfa02ab28bbbb0f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2622da7f955355aafd28e40bd29a3c62edfb37463d35082bfa02ab28bbbb0f1f", kill_on_drop: false }`
[INFO] [stdout] 2622da7f955355aafd28e40bd29a3c62edfb37463d35082bfa02ab28bbbb0f1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 277c81b25403a53f50bbecdecddfa69a6c44560fdc693150712728f28cda6086
[INFO] running `Command { std: "docker" "start" "-a" "277c81b25403a53f50bbecdecddfa69a6c44560fdc693150712728f28cda6086", kill_on_drop: false }`
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking human-readable v0.0.1
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking rust-embed-utils v7.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling rust-embed-impl v6.8.1
[INFO] [stderr]     Checking rust-embed v6.8.1
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking prometheus-manager v0.0.30 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Metric` instead of cloning the inner type
[INFO] [stdout]     --> src/lib.rs:3534:33
[INFO] [stdout]      |
[INFO] [stdout] 3534 |         assert_eq!(matched[i], v.clone(), "mismatched at {}", i);
[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 13.33s
[INFO] running `Command { std: "docker" "inspect" "277c81b25403a53f50bbecdecddfa69a6c44560fdc693150712728f28cda6086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277c81b25403a53f50bbecdecddfa69a6c44560fdc693150712728f28cda6086", kill_on_drop: false }`
[INFO] [stdout] 277c81b25403a53f50bbecdecddfa69a6c44560fdc693150712728f28cda6086