[INFO] fetching crate rill 0.21.0...
[INFO] checking rill-0.21.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate rill 0.21.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate rill 0.21.0 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 rill 0.21.0
[INFO] finished tweaking crates.io crate rill 0.21.0
[INFO] tweaked toml for crates.io crate rill 0.21.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 147 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding block-buffer v0.9.0 (available: v0.10.4)
[INFO] [stderr]       Adding convert_case v0.4.0 (available: v0.6.0)
[INFO] [stderr]       Adding derive_more v0.99.18 (available: v1.0.0)
[INFO] [stderr]       Adding digest v0.9.0 (available: v0.10.7)
[INFO] [stderr]       Adding env_logger v0.8.4 (available: v0.11.5)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding h2 v0.3.26 (available: v0.4.6)
[INFO] [stderr]       Adding headers v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding headers-core v0.2.0 (available: v0.3.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (available: v0.4.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding http v0.2.12 (available: v1.1.0)
[INFO] [stderr]       Adding http-body v0.4.6 (available: v1.0.1)
[INFO] [stderr]       Adding hyper v0.14.30 (available: v1.4.1)
[INFO] [stderr]       Adding idna v0.5.0 (available: v1.0.2)
[INFO] [stderr]       Adding input_buffer v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding meio v0.82.0 (available: v0.97.0)
[INFO] [stderr]       Adding meio-connect v0.82.0 (available: v0.97.0)
[INFO] [stderr]       Adding meio-protocol v0.82.0 (available: v0.97.0)
[INFO] [stderr]       Adding rill-protocol v0.21.0 (available: v0.41.0)
[INFO] [stderr]       Adding serde_qs v0.8.5 (available: v0.13.0)
[INFO] [stderr]       Adding sha-1 v0.9.8 (available: v0.10.1)
[INFO] [stderr]       Adding tokio-tungstenite v0.13.0 (available: v0.24.0)
[INFO] [stderr]       Adding tokio-util v0.6.10 (available: v0.7.12)
[INFO] [stderr]       Adding tungstenite v0.12.0 (available: v0.24.0)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.10.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ecd5700812a860ab9df2e1bc27af3a9e4b254e1dcb5a08e3c9f9da6ff0f8ee2e
[INFO] running `Command { std: "docker" "start" "-a" "ecd5700812a860ab9df2e1bc27af3a9e4b254e1dcb5a08e3c9f9da6ff0f8ee2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecd5700812a860ab9df2e1bc27af3a9e4b254e1dcb5a08e3c9f9da6ff0f8ee2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd5700812a860ab9df2e1bc27af3a9e4b254e1dcb5a08e3c9f9da6ff0f8ee2e", kill_on_drop: false }`
[INFO] [stdout] ecd5700812a860ab9df2e1bc27af3a9e4b254e1dcb5a08e3c9f9da6ff0f8ee2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6634c142a2ea00423924497b47a09161cf71c3ff7e65b9f355f121363ad7ec2e
[INFO] running `Command { std: "docker" "start" "-a" "6634c142a2ea00423924497b47a09161cf71c3ff7e65b9f355f121363ad7ec2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking metacrate v0.1.2
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking headers v0.3.9
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking ctrlc v3.4.5
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tungstenite v0.12.0
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking tokio-tungstenite v0.13.0
[INFO] [stderr]     Checking meio v0.82.0
[INFO] [stderr]     Checking meio-protocol v0.82.0
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking serde_qs v0.8.5
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking rill-protocol v0.21.0
[INFO] [stderr]     Checking hyper v0.14.30
[INFO] [stderr]     Checking meio-connect v0.82.0
[INFO] [stderr]     Checking rill v0.21.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Internal` is never constructed
[INFO] [stdout]  --> src/protocol.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub struct Internal<T: Send + 'static>(pub T);
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Internal` is never constructed
[INFO] [stdout]  --> src/protocol.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub struct Internal<T: Send + 'static>(pub 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.00s
[INFO] running `Command { std: "docker" "inspect" "6634c142a2ea00423924497b47a09161cf71c3ff7e65b9f355f121363ad7ec2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6634c142a2ea00423924497b47a09161cf71c3ff7e65b9f355f121363ad7ec2e", kill_on_drop: false }`
[INFO] [stdout] 6634c142a2ea00423924497b47a09161cf71c3ff7e65b9f355f121363ad7ec2e