[INFO] fetching crate icemelter 0.3.2...
[INFO] checking icemelter-0.3.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate icemelter 0.3.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate icemelter 0.3.2 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 icemelter 0.3.2
[INFO] finished tweaking crates.io crate icemelter 0.3.2
[INFO] tweaked toml for crates.io crate icemelter 0.3.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate icemelter 0.3.2 already has a lockfile, it will not be regenerated
[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] bc833ec06cdad1fe223904c9227056ddc48562295c60eaf59085c71c6666c71e
[INFO] running `Command { std: "docker" "start" "-a" "bc833ec06cdad1fe223904c9227056ddc48562295c60eaf59085c71c6666c71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc833ec06cdad1fe223904c9227056ddc48562295c60eaf59085c71c6666c71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc833ec06cdad1fe223904c9227056ddc48562295c60eaf59085c71c6666c71e", kill_on_drop: false }`
[INFO] [stdout] bc833ec06cdad1fe223904c9227056ddc48562295c60eaf59085c71c6666c71e
[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] 12880dcb06fa87ebefa2deb10ba058e405ddb3fdccf8c22c12e34431c4157704
[INFO] running `Command { std: "docker" "start" "-a" "12880dcb06fa87ebefa2deb10ba058e405ddb3fdccf8c22c12e34431c4157704", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking regex-syntax v0.7.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]    Compiling rustix v0.36.9
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling rustix v0.37.20
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling tree-sitter v0.20.10
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling tree-sitter-rust v0.20.3
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking nu-ansi-term v0.48.0
[INFO] [stderr]     Checking is-terminal v0.4.4
[INFO] [stderr]     Checking anstream v0.3.0
[INFO] [stderr]     Checking clap_builder v4.3.12
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking tree-sitter-traversal v0.1.2
[INFO] [stderr]     Checking tree-sitter-edit v0.3.0
[INFO] [stderr]     Checking clap v4.3.12
[INFO] [stderr]     Checking clap-verbosity-flag v2.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.39
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]     Checking serde v1.0.171
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking treereduce v0.3.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking icemelter v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |     Changed(Vec<u8>),
[INFO] [stdout]     |     ------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 286 |     Changed(()),
[INFO] [stdout]     |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |     Changed(Vec<u8>),
[INFO] [stdout]     |     ------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 286 |     Changed(()),
[INFO] [stdout]     |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.76s
[INFO] running `Command { std: "docker" "inspect" "12880dcb06fa87ebefa2deb10ba058e405ddb3fdccf8c22c12e34431c4157704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12880dcb06fa87ebefa2deb10ba058e405ddb3fdccf8c22c12e34431c4157704", kill_on_drop: false }`
[INFO] [stdout] 12880dcb06fa87ebefa2deb10ba058e405ddb3fdccf8c22c12e34431c4157704