[INFO] fetching crate packetize_derive 0.96.0...
[INFO] checking packetize_derive-0.96.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate packetize_derive 0.96.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate packetize_derive 0.96.0 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 packetize_derive 0.96.0
[INFO] finished tweaking crates.io crate packetize_derive 0.96.0
[INFO] tweaked toml for crates.io crate packetize_derive 0.96.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54f53b87c3e1b9880256e4b3990ead6e8ef8f928e68ee6715f3747a22dcabe34
[INFO] running `Command { std: "docker" "start" "-a" "54f53b87c3e1b9880256e4b3990ead6e8ef8f928e68ee6715f3747a22dcabe34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54f53b87c3e1b9880256e4b3990ead6e8ef8f928e68ee6715f3747a22dcabe34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f53b87c3e1b9880256e4b3990ead6e8ef8f928e68ee6715f3747a22dcabe34", kill_on_drop: false }`
[INFO] [stdout] 54f53b87c3e1b9880256e4b3990ead6e8ef8f928e68ee6715f3747a22dcabe34
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b509ab0d48dbf1aad9ad53ab54cb2246c6df60dbf96e4c48c4f60dc247f8b70b
[INFO] running `Command { std: "docker" "start" "-a" "b509ab0d48dbf1aad9ad53ab54cb2246c6df60dbf96e4c48c4f60dc247f8b70b", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]     Checking proc-macro2 v1.0.86
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.77
[INFO] [stderr]     Checking packetize_derive v0.96.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `quotes_of_match_case`
[INFO] [stdout]    --> src/lib.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let quotes_of_match_case: Vec<_> =  packet_stream.states.iter().map(|state| {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_quotes_of_match_case`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encode_packet`
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let encode_packet = if bound_packets.is_empty() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encode_packet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_idents`
[INFO] [stdout]    --> src/lib.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let state_idents: Vec<&Ident> = idents_by_states(&packet_stream.states);
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_idents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decode_fn_name`
[INFO] [stdout]    --> src/lib.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let decode_fn_name = format_ident!("decode_{}_packet", bound.fn_name);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decode_fn_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encode_fn_name`
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let encode_fn_name = format_ident!("encode_{}_packet", bound.fn_name);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encode_fn_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trait_name`
[INFO] [stdout]    --> src/lib.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     let trait_name = format_ident!("{}", bound.trait_name);
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trait_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quotes_of_match_case`
[INFO] [stdout]    --> src/lib.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let quotes_of_match_case: Vec<_> =  packet_stream.states.iter().map(|state| {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_quotes_of_match_case`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encode_packet`
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let encode_packet = if bound_packets.is_empty() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encode_packet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_idents`
[INFO] [stdout]    --> src/lib.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let state_idents: Vec<&Ident> = idents_by_states(&packet_stream.states);
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_idents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decode_fn_name`
[INFO] [stdout]    --> src/lib.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let decode_fn_name = format_ident!("decode_{}_packet", bound.fn_name);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decode_fn_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encode_fn_name`
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let encode_fn_name = format_ident!("encode_{}_packet", bound.fn_name);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encode_fn_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trait_name`
[INFO] [stdout]    --> src/lib.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     let trait_name = format_ident!("{}", bound.trait_name);
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trait_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "b509ab0d48dbf1aad9ad53ab54cb2246c6df60dbf96e4c48c4f60dc247f8b70b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b509ab0d48dbf1aad9ad53ab54cb2246c6df60dbf96e4c48c4f60dc247f8b70b", kill_on_drop: false }`
[INFO] [stdout] b509ab0d48dbf1aad9ad53ab54cb2246c6df60dbf96e4c48c4f60dc247f8b70b