[INFO] fetching crate barse 0.3.0...
[INFO] checking barse-0.3.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate barse 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate barse 0.3.0 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 barse 0.3.0
[INFO] finished tweaking crates.io crate barse 0.3.0
[INFO] tweaked toml for crates.io crate barse 0.3.0 written to /workspace/builds/worker-1-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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 731edd183bb4bbcf1306a78ebc87966da79fc690f977f40679adc9f36a987470
[INFO] running `Command { std: "docker" "start" "-a" "731edd183bb4bbcf1306a78ebc87966da79fc690f977f40679adc9f36a987470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "731edd183bb4bbcf1306a78ebc87966da79fc690f977f40679adc9f36a987470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731edd183bb4bbcf1306a78ebc87966da79fc690f977f40679adc9f36a987470", kill_on_drop: false }`
[INFO] [stdout] 731edd183bb4bbcf1306a78ebc87966da79fc690f977f40679adc9f36a987470
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f9df1bd8cc04c6f92369035419f345d3d8b2d8cb99321b755653f55b1802ed81
[INFO] running `Command { std: "docker" "start" "-a" "f9df1bd8cc04c6f92369035419f345d3d8b2d8cb99321b755653f55b1802ed81", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]     Checking bytesize v1.3.0
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling barse-derive-impl v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling barse-derive v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking barse v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/derive_with.rs:121:41
[INFO] [stdout]     |
[INFO] [stdout] 121 | struct CarryOpt(#[barse(with = "cond")] Option<u8>);
[INFO] [stdout]     |        -------- field in this struct    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/derive_with.rs:125:75
[INFO] [stdout]     |
[INFO] [stdout] 125 | struct UseFn(#[barse(with = "wrap::Fn(|| Ok::<_, barse::Error>(carry))")] String);
[INFO] [stdout]     |        ----- field in this struct                                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/derive_with.rs:129:55
[INFO] [stdout]     |
[INFO] [stdout] 129 | struct UseCarry(#[barse(with = "wrap::Value(carry)")] String);
[INFO] [stdout]     |        -------- field in this struct                  ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/derive_with.rs:132:48
[INFO] [stdout]     |
[INFO] [stdout] 132 | struct UseDef(#[barse(with = "wrap::Default")] String);
[INFO] [stdout]     |        ------ field in this struct             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "f9df1bd8cc04c6f92369035419f345d3d8b2d8cb99321b755653f55b1802ed81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9df1bd8cc04c6f92369035419f345d3d8b2d8cb99321b755653f55b1802ed81", kill_on_drop: false }`
[INFO] [stdout] f9df1bd8cc04c6f92369035419f345d3d8b2d8cb99321b755653f55b1802ed81