[INFO] fetching crate tunio 0.3.0... [INFO] checking tunio-0.3.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate tunio 0.3.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate tunio 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 tunio 0.3.0 [INFO] finished tweaking crates.io crate tunio 0.3.0 [INFO] tweaked toml for crates.io crate tunio 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate tunio 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] 70d9cbe2c4ed2b51b509b466ecc9805283015a3aad6fa6c30e64988d0b000b7d [INFO] running `Command { std: "docker" "start" "-a" "70d9cbe2c4ed2b51b509b466ecc9805283015a3aad6fa6c30e64988d0b000b7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70d9cbe2c4ed2b51b509b466ecc9805283015a3aad6fa6c30e64988d0b000b7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70d9cbe2c4ed2b51b509b466ecc9805283015a3aad6fa6c30e64988d0b000b7d", kill_on_drop: false }` [INFO] [stdout] 70d9cbe2c4ed2b51b509b466ecc9805283015a3aad6fa6c30e64988d0b000b7d [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] 7e5751c1197e8e29989ec1eb7349993b96b640e1db6601a32d0403a0b11a4589 [INFO] running `Command { std: "docker" "start" "-a" "7e5751c1197e8e29989ec1eb7349993b96b640e1db6601a32d0403a0b11a4589", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling anyhow v1.0.58 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling paste v1.0.7 [INFO] [stderr] Compiling io-lifetimes v0.7.2 [INFO] [stderr] Checking ipnet v2.5.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking etherparse v0.10.1 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking nix v0.24.1 [INFO] [stderr] Checking netlink-sys v0.8.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Checking ipnetwork v0.19.0 [INFO] [stderr] Compiling darling_core v0.14.1 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Compiling delegate v0.7.0 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stderr] Checking tokio v1.19.2 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking netlink-packet-utils v0.5.1 [INFO] [stderr] Checking netlink-packet-core v0.4.2 [INFO] [stderr] Compiling darling_macro v0.14.1 [INFO] [stderr] Checking netlink-packet-route v0.11.0 [INFO] [stderr] Compiling darling v0.14.1 [INFO] [stderr] Compiling derive_builder_core v0.11.2 [INFO] [stderr] Compiling derive_builder_macro v0.11.2 [INFO] [stderr] Checking derive_builder v0.11.2 [INFO] [stderr] Checking netconfig v0.2.0 [INFO] [stderr] Checking tunio v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `AsyncReadExt` [INFO] [stdout] --> examples/simple.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `AsyncWriteExt` [INFO] [stdout] --> examples/simple.rs:4:31 [INFO] [stdout] | [INFO] [stdout] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buf` [INFO] [stdout] --> examples/simple.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut buf = vec![0u8; 4096]; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_buf` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/simple.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let mut interface = DefaultInterface::new_up(&mut driver, interface_config).unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/simple.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let mut buf = vec![0u8; 4096]; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/simple.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | tokio::signal::ctrl_c().await; [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] 52 | let _ = tokio::signal::ctrl_c().await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.49s [INFO] running `Command { std: "docker" "inspect" "7e5751c1197e8e29989ec1eb7349993b96b640e1db6601a32d0403a0b11a4589", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e5751c1197e8e29989ec1eb7349993b96b640e1db6601a32d0403a0b11a4589", kill_on_drop: false }` [INFO] [stdout] 7e5751c1197e8e29989ec1eb7349993b96b640e1db6601a32d0403a0b11a4589