[INFO] fetching crate safex11 0.0.6...
[INFO] checking safex11-0.0.6 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate safex11 0.0.6 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate safex11 0.0.6 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] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate safex11 0.0.6
[INFO] finished tweaking crates.io crate safex11 0.0.6
[INFO] tweaked toml for crates.io crate safex11 0.0.6 written to /workspace/builds/worker-3-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 16 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1e27d1535e26c2eb4d00fe5733616ca36b9627ec791ba5ba161487d06de00a73
[INFO] running `Command { std: "docker" "start" "-a" "1e27d1535e26c2eb4d00fe5733616ca36b9627ec791ba5ba161487d06de00a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e27d1535e26c2eb4d00fe5733616ca36b9627ec791ba5ba161487d06de00a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e27d1535e26c2eb4d00fe5733616ca36b9627ec791ba5ba161487d06de00a73", kill_on_drop: false }`
[INFO] [stdout] 1e27d1535e26c2eb4d00fe5733616ca36b9627ec791ba5ba161487d06de00a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 413f3d52a3aec2ed03eaa10cddb35736c4b52538209c5cec3f9329f85e98eaa0
[INFO] running `Command { std: "docker" "start" "-a" "413f3d52a3aec2ed03eaa10cddb35736c4b52538209c5cec3f9329f85e98eaa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling safex11 v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/xlib/display.rs:226:31
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub struct ListExtensions<'a>(&'a Display, *mut *mut c_char, isize);
[INFO] [stdout]     |            --------------     ^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[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] 226 | pub struct ListExtensions<'a>((), *mut *mut c_char, isize);
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/xlib/event.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct KeyEvent(xlib::XKeyEvent);
[INFO] [stdout]    |            -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `KeyEvent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/xlib/display.rs:226:31
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub struct ListExtensions<'a>(&'a Display, *mut *mut c_char, isize);
[INFO] [stdout]     |            --------------     ^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[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] 226 | pub struct ListExtensions<'a>((), *mut *mut c_char, isize);
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/xlib/event.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct KeyEvent(xlib::XKeyEvent);
[INFO] [stdout]    |            -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `KeyEvent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `Command { std: "docker" "inspect" "413f3d52a3aec2ed03eaa10cddb35736c4b52538209c5cec3f9329f85e98eaa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413f3d52a3aec2ed03eaa10cddb35736c4b52538209c5cec3f9329f85e98eaa0", kill_on_drop: false }`
[INFO] [stdout] 413f3d52a3aec2ed03eaa10cddb35736c4b52538209c5cec3f9329f85e98eaa0