[INFO] fetching crate gomicollector 0.1.1...
[INFO] checking gomicollector-0.1.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate gomicollector 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate gomicollector 0.1.1 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 gomicollector 0.1.1
[INFO] finished tweaking crates.io crate gomicollector 0.1.1
[INFO] tweaked toml for crates.io crate gomicollector 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate gomicollector 0.1.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3ef8cadf8333b3786f17cd2e15d2c2230d7e2962d5911eef420fa2fac2684e0b
[INFO] running `Command { std: "docker" "start" "-a" "3ef8cadf8333b3786f17cd2e15d2c2230d7e2962d5911eef420fa2fac2684e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ef8cadf8333b3786f17cd2e15d2c2230d7e2962d5911eef420fa2fac2684e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef8cadf8333b3786f17cd2e15d2c2230d7e2962d5911eef420fa2fac2684e0b", kill_on_drop: false }`
[INFO] [stdout] 3ef8cadf8333b3786f17cd2e15d2c2230d7e2962d5911eef420fa2fac2684e0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3d4baf45ce958317965be51caac0e2d41a966f916dcf64476f0a27dec123a7dc
[INFO] running `Command { std: "docker" "start" "-a" "3d4baf45ce958317965be51caac0e2d41a966f916dcf64476f0a27dec123a7dc", kill_on_drop: false }`
[INFO] [stderr]     Checking gomicollector v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `force_gc` is never used
[INFO] [stdout]    --> src/lib.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 45  | impl<T: Debug + Clone> Heap<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn force_gc(&mut self, tmp_data: T) {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "3d4baf45ce958317965be51caac0e2d41a966f916dcf64476f0a27dec123a7dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d4baf45ce958317965be51caac0e2d41a966f916dcf64476f0a27dec123a7dc", kill_on_drop: false }`
[INFO] [stdout] 3d4baf45ce958317965be51caac0e2d41a966f916dcf64476f0a27dec123a7dc