[INFO] fetching crate jatsl 0.2.0...
[INFO] checking jatsl-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate jatsl 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate jatsl 0.2.0 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 jatsl 0.2.0
[INFO] finished tweaking crates.io crate jatsl 0.2.0
[INFO] tweaked toml for crates.io crate jatsl 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate jatsl 0.2.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] be5bb123977dfea2dc4565395369526f6bd7f6f43571457bb7806f284d26b367
[INFO] running `Command { std: "docker" "start" "-a" "be5bb123977dfea2dc4565395369526f6bd7f6f43571457bb7806f284d26b367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be5bb123977dfea2dc4565395369526f6bd7f6f43571457bb7806f284d26b367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5bb123977dfea2dc4565395369526f6bd7f6f43571457bb7806f284d26b367", kill_on_drop: false }`
[INFO] [stdout] be5bb123977dfea2dc4565395369526f6bd7f6f43571457bb7806f284d26b367
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7235c28a06b9572b3cf3c73f6abbbdae9bf42abf030abbf7c261fa22b0912f5f
[INFO] running `Command { std: "docker" "start" "-a" "7235c28a06b9572b3cf3c73f6abbbdae9bf42abf030abbf7c261fa22b0912f5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]     Checking futures-sink v0.3.18
[INFO] [stderr]    Compiling serde_derive v1.0.131
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking futures-io v0.3.18
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling serde v1.0.131
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking ryu v1.0.7
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking futures-executor v0.3.18
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stderr]     Checking futures v0.3.18
[INFO] [stderr]     Checking jatsl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ExampleContext` is never constructed
[INFO] [stdout]  --> examples/basic.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct ExampleContext {
[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 27.73s
[INFO] running `Command { std: "docker" "inspect" "7235c28a06b9572b3cf3c73f6abbbdae9bf42abf030abbf7c261fa22b0912f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7235c28a06b9572b3cf3c73f6abbbdae9bf42abf030abbf7c261fa22b0912f5f", kill_on_drop: false }`
[INFO] [stdout] 7235c28a06b9572b3cf3c73f6abbbdae9bf42abf030abbf7c261fa22b0912f5f