[INFO] fetching crate fdb_tuple 0.4.0...
[INFO] checking fdb_tuple-0.4.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate fdb_tuple 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate fdb_tuple 0.4.0 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 fdb_tuple 0.4.0
[INFO] finished tweaking crates.io crate fdb_tuple 0.4.0
[INFO] tweaked toml for crates.io crate fdb_tuple 0.4.0 written to /workspace/builds/worker-4-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 2 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5b688280b0a7148a2868bdab449919b8a018261ce40ca3215fceb40406215e11
[INFO] running `Command { std: "docker" "start" "-a" "5b688280b0a7148a2868bdab449919b8a018261ce40ca3215fceb40406215e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b688280b0a7148a2868bdab449919b8a018261ce40ca3215fceb40406215e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b688280b0a7148a2868bdab449919b8a018261ce40ca3215fceb40406215e11", kill_on_drop: false }`
[INFO] [stdout] 5b688280b0a7148a2868bdab449919b8a018261ce40ca3215fceb40406215e11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d2236ce8c0394cacad0e004a6db63608ef1a99d7f343605facbd78e8eda0b396
[INFO] running `Command { std: "docker" "start" "-a" "d2236ce8c0394cacad0e004a6db63608ef1a99d7f343605facbd78e8eda0b396", kill_on_drop: false }`
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking fdb_tuple v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]    --> src/lib.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let (tag, timestamp, pubkey, kind, id): (String, u64, Vec<u8>, u64, Vec<u8>) = from_bytes(bytes).unwrap();
[INFO] [stdout]     |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pubkey`
[INFO] [stdout]    --> src/lib.rs:102:30
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let (tag, timestamp, pubkey, kind, id): (String, u64, Vec<u8>, u64, Vec<u8>) = from_bytes(bytes).unwrap();
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pubkey`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]    --> src/lib.rs:102:38
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let (tag, timestamp, pubkey, kind, id): (String, u64, Vec<u8>, u64, Vec<u8>) = from_bytes(bytes).unwrap();
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/lib.rs:102:44
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let (tag, timestamp, pubkey, kind, id): (String, u64, Vec<u8>, u64, Vec<u8>) = from_bytes(bytes).unwrap();
[INFO] [stdout]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "d2236ce8c0394cacad0e004a6db63608ef1a99d7f343605facbd78e8eda0b396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2236ce8c0394cacad0e004a6db63608ef1a99d7f343605facbd78e8eda0b396", kill_on_drop: false }`
[INFO] [stdout] d2236ce8c0394cacad0e004a6db63608ef1a99d7f343605facbd78e8eda0b396