[INFO] fetching crate reis 0.2.0...
[INFO] checking reis-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate reis 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate reis 0.2.0 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 reis 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate reis 0.2.0
[INFO] tweaked toml for crates.io crate reis 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate reis 0.2.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 891cd6da102d498185ca71bd22396a93cd232e87db2edeec57f4e4b07409a2c2
[INFO] running `Command { std: "docker" "start" "-a" "891cd6da102d498185ca71bd22396a93cd232e87db2edeec57f4e4b07409a2c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "891cd6da102d498185ca71bd22396a93cd232e87db2edeec57f4e4b07409a2c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891cd6da102d498185ca71bd22396a93cd232e87db2edeec57f4e4b07409a2c2", kill_on_drop: false }`
[INFO] [stdout] 891cd6da102d498185ca71bd22396a93cd232e87db2edeec57f4e4b07409a2c2
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 128e2622aabbb8e71eb8c982094c1346302c40e21ef8b121147437db094c00e4
[INFO] running `Command { std: "docker" "start" "-a" "128e2622aabbb8e71eb8c982094c1346302c40e21ef8b121147437db094c00e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling async-trait v0.1.78
[INFO] [stderr]     Checking endi v1.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ordered-stream v0.2.0
[INFO] [stderr]     Checking xdg-home v1.1.0
[INFO] [stderr]     Checking memmap2 v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]    Compiling indexmap v2.2.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking xkeysym v0.2.0
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.2.0
[INFO] [stderr]     Checking pollster v0.3.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking async-broadcast v0.7.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking xkbcommon v0.7.0
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling zvariant_utils v1.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling enumflags2_derive v0.7.9
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking reis v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]    Compiling zvariant_derive v4.0.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling zbus_macros v4.1.2
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/util.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct LockFile(UnlinkOnDrop<fs::File>);
[INFO] [stdout]     |            -------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[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: method `enum_name` is never used
[INFO] [stdout]   --> src/wire/arg.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub(crate) trait OwnedArg: Sized {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn enum_name(&self) -> Option<(&'static str, &'static str)> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking polling v3.5.0
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking async-fs v2.1.1
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking enumflags2 v0.7.9
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking zvariant v4.0.2
[INFO] [stderr]     Checking zbus_names v3.0.0
[INFO] [stderr]     Checking zbus v4.1.2
[INFO] [stderr]     Checking ashpd v0.8.1
[INFO] [stdout] warning: unused import: `xkbcommon::xkb`
[INFO] [stdout]  --> examples/receive-synchronous.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xkbcommon::xkb;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> examples/receive-synchronous.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let h = region.height() as i32;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/receive-synchronous.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 context.flush();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 let _ = context.flush();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/util.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct LockFile(UnlinkOnDrop<fs::File>);
[INFO] [stdout]     |            -------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[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: method `enum_name` is never used
[INFO] [stdout]   --> src/wire/arg.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub(crate) trait OwnedArg: Sized {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn enum_name(&self) -> Option<(&'static str, &'static str)> {
[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 38.00s
[INFO] running `Command { std: "docker" "inspect" "128e2622aabbb8e71eb8c982094c1346302c40e21ef8b121147437db094c00e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128e2622aabbb8e71eb8c982094c1346302c40e21ef8b121147437db094c00e4", kill_on_drop: false }`
[INFO] [stdout] 128e2622aabbb8e71eb8c982094c1346302c40e21ef8b121147437db094c00e4