[INFO] fetching crate lightning-wire-msgs-derive-base 0.2.6...
[INFO] checking lightning-wire-msgs-derive-base-0.2.6 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate lightning-wire-msgs-derive-base 0.2.6 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate lightning-wire-msgs-derive-base 0.2.6 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lightning-wire-msgs-derive-base 0.2.6
[INFO] finished tweaking crates.io crate lightning-wire-msgs-derive-base 0.2.6
[INFO] tweaked toml for crates.io crate lightning-wire-msgs-derive-base 0.2.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b6c3d919a80ced5efb10680a47d5dcc0e06cc2e80576e2f080d8ae257f4afdc
[INFO] running `Command { std: "docker" "start" "-a" "5b6c3d919a80ced5efb10680a47d5dcc0e06cc2e80576e2f080d8ae257f4afdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6c3d919a80ced5efb10680a47d5dcc0e06cc2e80576e2f080d8ae257f4afdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6c3d919a80ced5efb10680a47d5dcc0e06cc2e80576e2f080d8ae257f4afdc", kill_on_drop: false }`
[INFO] [stdout] 5b6c3d919a80ced5efb10680a47d5dcc0e06cc2e80576e2f080d8ae257f4afdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b20912d7cf064a7b2840879f947f4010372e71d55a5fb54ce94e53a64cd80fa
[INFO] running `Command { std: "docker" "start" "-a" "9b20912d7cf064a7b2840879f947f4010372e71d55a5fb54ce94e53a64cd80fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking lightning-wire-msgs-derive-base v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/wire_msg.rs:176:29
[INFO] [stdout]     |
[INFO] [stdout] 176 | ...                   (match a.args.first().expect("tlv value must be Option") {
[INFO] [stdout]     |                       ^
[INFO] [stdout] ...
[INFO] [stdout] 179 | ...                   })
[INFO] [stdout]     |                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 176 ~                             match a.args.first().expect("tlv value must be Option") {
[INFO] [stdout] 177 |                                 syn::GenericArgument::Type(t) => t.clone(),
[INFO] [stdout] 178 |                                 _ => panic!("tlv value must be Option"),
[INFO] [stdout] 179 ~                             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/wire_msg.rs:176:29
[INFO] [stdout]     |
[INFO] [stdout] 176 | ...                   (match a.args.first().expect("tlv value must be Option") {
[INFO] [stdout]     |                       ^
[INFO] [stdout] ...
[INFO] [stdout] 179 | ...                   })
[INFO] [stdout]     |                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 176 ~                             match a.args.first().expect("tlv value must be Option") {
[INFO] [stdout] 177 |                                 syn::GenericArgument::Type(t) => t.clone(),
[INFO] [stdout] 178 |                                 _ => panic!("tlv value must be Option"),
[INFO] [stdout] 179 ~                             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "9b20912d7cf064a7b2840879f947f4010372e71d55a5fb54ce94e53a64cd80fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b20912d7cf064a7b2840879f947f4010372e71d55a5fb54ce94e53a64cd80fa", kill_on_drop: false }`
[INFO] [stdout] 9b20912d7cf064a7b2840879f947f4010372e71d55a5fb54ce94e53a64cd80fa