[INFO] fetching crate avalanche-macro 0.1.0...
[INFO] checking avalanche-macro-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate avalanche-macro 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate avalanche-macro 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 avalanche-macro 0.1.0
[INFO] finished tweaking crates.io crate avalanche-macro 0.1.0
[INFO] tweaked toml for crates.io crate avalanche-macro 0.1.0 written to /workspace/builds/worker-7-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 20 packages to latest compatible versions
[INFO] [stderr]       Adding getrandom v0.1.16 (available: v0.2.15)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (available: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (available: v0.3.2)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] df4610aca111bfc89824c4f46f0b0a365985be0a155159adce35f7b08e7d5601
[INFO] running `Command { std: "docker" "start" "-a" "df4610aca111bfc89824c4f46f0b0a365985be0a155159adce35f7b08e7d5601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df4610aca111bfc89824c4f46f0b0a365985be0a155159adce35f7b08e7d5601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4610aca111bfc89824c4f46f0b0a365985be0a155159adce35f7b08e7d5601", kill_on_drop: false }`
[INFO] [stdout] df4610aca111bfc89824c4f46f0b0a365985be0a155159adce35f7b08e7d5601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 69563b17f577acca3ff84af42dda697c3a6051e8335b3dbd2d58b87dde18d9c7
[INFO] running `Command { std: "docker" "start" "-a" "69563b17f577acca3ff84af42dda697c3a6051e8335b3dbd2d58b87dde18d9c7", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking libc v0.2.159
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking proc-macro-error v1.0.4
[INFO] [stderr]     Checking avalanche-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Closure` is never constructed
[INFO] [stdout]   --> src/transform.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | struct Closure {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Closure` is never constructed
[INFO] [stdout]   --> src/transform.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | struct Closure {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `sub` are never read
[INFO] [stdout]    --> src/transform.rs:834:5
[INFO] [stdout]     |
[INFO] [stdout] 833 | struct Atom {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] 834 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 835 |     sub: Option<Vec<usize>>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Atom` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `sub` are never read
[INFO] [stdout]    --> src/transform.rs:834:5
[INFO] [stdout]     |
[INFO] [stdout] 833 | struct Atom {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] 834 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 835 |     sub: Option<Vec<usize>>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Atom` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "69563b17f577acca3ff84af42dda697c3a6051e8335b3dbd2d58b87dde18d9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69563b17f577acca3ff84af42dda697c3a6051e8335b3dbd2d58b87dde18d9c7", kill_on_drop: false }`
[INFO] [stdout] 69563b17f577acca3ff84af42dda697c3a6051e8335b3dbd2d58b87dde18d9c7