[INFO] fetching crate mlcg 0.0.1...
[INFO] checking mlcg-0.0.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate mlcg 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate mlcg 0.0.1 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 mlcg 0.0.1
[INFO] finished tweaking crates.io crate mlcg 0.0.1
[INFO] tweaked toml for crates.io crate mlcg 0.0.1 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[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-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 528382494ecf55eb90426344b698965acdf06b1db606cec050fd53cdf0b49de5
[INFO] running `Command { std: "docker" "start" "-a" "528382494ecf55eb90426344b698965acdf06b1db606cec050fd53cdf0b49de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528382494ecf55eb90426344b698965acdf06b1db606cec050fd53cdf0b49de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528382494ecf55eb90426344b698965acdf06b1db606cec050fd53cdf0b49de5", kill_on_drop: false }`
[INFO] [stdout] 528382494ecf55eb90426344b698965acdf06b1db606cec050fd53cdf0b49de5
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e23fa86b92efb758e9ddf6af2e27cbaabc0d020b579ca5eeb16d08b6db7ade6
[INFO] running `Command { std: "docker" "start" "-a" "1e23fa86b92efb758e9ddf6af2e27cbaabc0d020b579ca5eeb16d08b6db7ade6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling mlcg-derive v0.0.1
[INFO] [stderr]     Checking mlcg v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `appends` is never read
[INFO] [stdout]    --> src/processor.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub(crate) struct RawProcessor {
[INFO] [stdout]     |                   ------------ field in this struct
[INFO] [stdout] 134 |     pub main: Block,
[INFO] [stdout] 135 |     pub appends: Vec<Block>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RawProcessor` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis
[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: field `appends` is never read
[INFO] [stdout]    --> src/processor.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub(crate) struct RawProcessor {
[INFO] [stdout]     |                   ------------ field in this struct
[INFO] [stdout] 134 |     pub main: Block,
[INFO] [stdout] 135 |     pub appends: Vec<Block>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RawProcessor` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis
[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 6.00s
[INFO] running `Command { std: "docker" "inspect" "1e23fa86b92efb758e9ddf6af2e27cbaabc0d020b579ca5eeb16d08b6db7ade6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e23fa86b92efb758e9ddf6af2e27cbaabc0d020b579ca5eeb16d08b6db7ade6", kill_on_drop: false }`
[INFO] [stdout] 1e23fa86b92efb758e9ddf6af2e27cbaabc0d020b579ca5eeb16d08b6db7ade6