[INFO] fetching crate tarc 0.1.4...
[INFO] checking tarc-0.1.4 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate tarc 0.1.4 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tarc 0.1.4 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 tarc 0.1.4
[INFO] finished tweaking crates.io crate tarc 0.1.4
[INFO] tweaked toml for crates.io crate tarc 0.1.4 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]     Blocking waiting for file lock on package cache
[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] 754d0a32704db6caa9ab79f197a8cb06898137aae72d012804092904afd43a57
[INFO] running `Command { std: "docker" "start" "-a" "754d0a32704db6caa9ab79f197a8cb06898137aae72d012804092904afd43a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "754d0a32704db6caa9ab79f197a8cb06898137aae72d012804092904afd43a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754d0a32704db6caa9ab79f197a8cb06898137aae72d012804092904afd43a57", kill_on_drop: false }`
[INFO] [stdout] 754d0a32704db6caa9ab79f197a8cb06898137aae72d012804092904afd43a57
[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] 21b424c76144e729c7c3539cc26298f1ef5902ff5ac3a17300d6b7aa5dcf4209
[INFO] running `Command { std: "docker" "start" "-a" "21b424c76144e729c7c3539cc26298f1ef5902ff5ac3a17300d6b7aa5dcf4209", kill_on_drop: false }`
[INFO] [stderr]     Checking tarc v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `do_drop_in_place` is never used
[INFO] [stdout]   --> src/lib.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 | unsafe extern "C" fn do_drop_in_place<T>(data: *mut ()) {
[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: function `do_drop_in_place` is never used
[INFO] [stdout]   --> src/lib.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 | unsafe extern "C" fn do_drop_in_place<T>(data: *mut ()) {
[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 0.14s
[INFO] running `Command { std: "docker" "inspect" "21b424c76144e729c7c3539cc26298f1ef5902ff5ac3a17300d6b7aa5dcf4209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b424c76144e729c7c3539cc26298f1ef5902ff5ac3a17300d6b7aa5dcf4209", kill_on_drop: false }`
[INFO] [stdout] 21b424c76144e729c7c3539cc26298f1ef5902ff5ac3a17300d6b7aa5dcf4209