[INFO] fetching crate mahogany 0.1.0...
[INFO] checking mahogany-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate mahogany 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate mahogany 0.1.0 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 mahogany 0.1.0
[INFO] finished tweaking crates.io crate mahogany 0.1.0
[INFO] tweaked toml for crates.io crate mahogany 0.1.0 written to /workspace/builds/worker-0-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]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 01acb18ee11c7b4642b70ff6bffcd97a154b1cad38a37d90fe537d77598ac6e6
[INFO] running `Command { std: "docker" "start" "-a" "01acb18ee11c7b4642b70ff6bffcd97a154b1cad38a37d90fe537d77598ac6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01acb18ee11c7b4642b70ff6bffcd97a154b1cad38a37d90fe537d77598ac6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01acb18ee11c7b4642b70ff6bffcd97a154b1cad38a37d90fe537d77598ac6e6", kill_on_drop: false }`
[INFO] [stdout] 01acb18ee11c7b4642b70ff6bffcd97a154b1cad38a37d90fe537d77598ac6e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 404b3706fdf7b2a5d7e9043f4b7962d15195be5d338e3ebe384fad007fd08b0a
[INFO] running `Command { std: "docker" "start" "-a" "404b3706fdf7b2a5d7e9043f4b7962d15195be5d338e3ebe384fad007fd08b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking mahogany v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Close` is never constructed
[INFO] [stdout]   --> src/logger.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub enum LogTransmit<T: LogLevel> {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 91 |     Log(LogInstance<T>),
[INFO] [stdout] 92 |     Close,
[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: variant `Close` is never constructed
[INFO] [stdout]   --> src/logger.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub enum LogTransmit<T: LogLevel> {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 91 |     Log(LogInstance<T>),
[INFO] [stdout] 92 |     Close,
[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 2.62s
[INFO] running `Command { std: "docker" "inspect" "404b3706fdf7b2a5d7e9043f4b7962d15195be5d338e3ebe384fad007fd08b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "404b3706fdf7b2a5d7e9043f4b7962d15195be5d338e3ebe384fad007fd08b0a", kill_on_drop: false }`
[INFO] [stdout] 404b3706fdf7b2a5d7e9043f4b7962d15195be5d338e3ebe384fad007fd08b0a