[INFO] fetching crate crows-bindings 0.3.0...
[INFO] checking crows-bindings-0.3.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate crows-bindings 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate crows-bindings 0.3.0 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 crows-bindings 0.3.0
[INFO] finished tweaking crates.io crate crows-bindings 0.3.0
[INFO] tweaked toml for crates.io crate crows-bindings 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate crows-bindings 0.3.0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6aca8688901afa2a472c87a2b2f1fd26bbe53e8ef4fb0a3ef7300586c0ea0bc9
[INFO] running `Command { std: "docker" "start" "-a" "6aca8688901afa2a472c87a2b2f1fd26bbe53e8ef4fb0a3ef7300586c0ea0bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aca8688901afa2a472c87a2b2f1fd26bbe53e8ef4fb0a3ef7300586c0ea0bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aca8688901afa2a472c87a2b2f1fd26bbe53e8ef4fb0a3ef7300586c0ea0bc9", kill_on_drop: false }`
[INFO] [stdout] 6aca8688901afa2a472c87a2b2f1fd26bbe53e8ef4fb0a3ef7300586c0ea0bc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a8cc7f88b9aa9af5c7c68a6ff31836675e4a7020e3224564108dcd36cae8b7c2
[INFO] running `Command { std: "docker" "start" "-a" "a8cc7f88b9aa9af5c7c68a6ff31836675e4a7020e3224564108dcd36cae8b7c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling crows-macros v0.3.0
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling serde_with_macros v3.7.0
[INFO] [stderr]     Checking serde_with v3.7.0
[INFO] [stderr]     Checking crows-shared v0.3.0
[INFO] [stderr]     Checking crows-bindings v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `with_buffer` is never used
[INFO] [stdout]   --> src/lib.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn with_buffer<R>(f: impl FnOnce(&mut Vec<u8>) -> R) -> R {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log` is never used
[INFO] [stdout]   --> src/lib.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |         pub fn log(content: *mut u8, content_len: usize);
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_buffer` is never used
[INFO] [stdout]   --> src/lib.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn with_buffer<R>(f: impl FnOnce(&mut Vec<u8>) -> R) -> R {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log` is never used
[INFO] [stdout]   --> src/lib.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |         pub fn log(content: *mut u8, content_len: usize);
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.93s
[INFO] running `Command { std: "docker" "inspect" "a8cc7f88b9aa9af5c7c68a6ff31836675e4a7020e3224564108dcd36cae8b7c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8cc7f88b9aa9af5c7c68a6ff31836675e4a7020e3224564108dcd36cae8b7c2", kill_on_drop: false }`
[INFO] [stdout] a8cc7f88b9aa9af5c7c68a6ff31836675e4a7020e3224564108dcd36cae8b7c2