[INFO] fetching crate lightpack 0.2.8...
[INFO] checking lightpack-0.2.8 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate lightpack 0.2.8 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate lightpack 0.2.8 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 lightpack 0.2.8
[INFO] finished tweaking crates.io crate lightpack 0.2.8
[INFO] tweaked toml for crates.io crate lightpack 0.2.8 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate lightpack 0.2.8 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] [stderr]     Blocking waiting for file lock on package cache
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1bcae850079cc68031e4ff6817a5204c77d348f22af16962e035f252d0e4ef4
[INFO] running `Command { std: "docker" "start" "-a" "f1bcae850079cc68031e4ff6817a5204c77d348f22af16962e035f252d0e4ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1bcae850079cc68031e4ff6817a5204c77d348f22af16962e035f252d0e4ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1bcae850079cc68031e4ff6817a5204c77d348f22af16962e035f252d0e4ef4", kill_on_drop: false }`
[INFO] [stdout] f1bcae850079cc68031e4ff6817a5204c77d348f22af16962e035f252d0e4ef4
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd5f7aa501fc77f8944205535c417a71bf1a46f25f34fcc4dedaa62c88370a5e
[INFO] running `Command { std: "docker" "start" "-a" "dd5f7aa501fc77f8944205535c417a71bf1a46f25f34fcc4dedaa62c88370a5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling lightpack-derive v0.2.8
[INFO] [stderr]     Checking lightpack v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/size_test.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |     struct Tuple(X, Y);
[INFO] [stdout]    |            ----- ^  ^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[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 4.76s
[INFO] running `Command { std: "docker" "inspect" "dd5f7aa501fc77f8944205535c417a71bf1a46f25f34fcc4dedaa62c88370a5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5f7aa501fc77f8944205535c417a71bf1a46f25f34fcc4dedaa62c88370a5e", kill_on_drop: false }`
[INFO] [stdout] dd5f7aa501fc77f8944205535c417a71bf1a46f25f34fcc4dedaa62c88370a5e