[INFO] fetching crate ranked_voting 0.3.0...
[INFO] checking ranked_voting-0.3.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate ranked_voting 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate ranked_voting 0.3.0 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 ranked_voting 0.3.0
[INFO] finished tweaking crates.io crate ranked_voting 0.3.0
[INFO] tweaked toml for crates.io crate ranked_voting 0.3.0 written to /workspace/builds/worker-5-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 52 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.9.3 (available: v0.11.5)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (available: v0.4.0)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6b841ca097bd9b926f1a62a061d5d233de2d3b067bdb0ff5cdd358f43a0c1695
[INFO] running `Command { std: "docker" "start" "-a" "6b841ca097bd9b926f1a62a061d5d233de2d3b067bdb0ff5cdd358f43a0c1695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b841ca097bd9b926f1a62a061d5d233de2d3b067bdb0ff5cdd358f43a0c1695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b841ca097bd9b926f1a62a061d5d233de2d3b067bdb0ff5cdd358f43a0c1695", kill_on_drop: false }`
[INFO] [stdout] 6b841ca097bd9b926f1a62a061d5d233de2d3b067bdb0ff5cdd358f43a0c1695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fddf75a234a050e61f919d635a2aa360f341b45e1afbfeeb736c00c264c95d7d
[INFO] running `Command { std: "docker" "start" "-a" "fddf75a234a050e61f919d635a2aa360f341b45e1afbfeeb736c00c264c95d7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking bytes v1.7.2
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]     Checking sha256 v1.5.0
[INFO] [stderr]     Checking ranked_voting v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `VoteSignature` is never constructed
[INFO] [stdout]    --> src/lib.rs:198:8
[INFO] [stdout]     |
[INFO] [stdout] 198 | struct VoteSignature {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VoteSignature` is never constructed
[INFO] [stdout]    --> src/lib.rs:198:8
[INFO] [stdout]     |
[INFO] [stdout] 198 | struct VoteSignature {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.47s
[INFO] running `Command { std: "docker" "inspect" "fddf75a234a050e61f919d635a2aa360f341b45e1afbfeeb736c00c264c95d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fddf75a234a050e61f919d635a2aa360f341b45e1afbfeeb736c00c264c95d7d", kill_on_drop: false }`
[INFO] [stdout] fddf75a234a050e61f919d635a2aa360f341b45e1afbfeeb736c00c264c95d7d