[INFO] fetching crate libtuntap 0.0.2... [INFO] checking libtuntap-0.0.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate libtuntap 0.0.2 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate libtuntap 0.0.2 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate libtuntap 0.0.2 [INFO] finished tweaking crates.io crate libtuntap 0.0.2 [INFO] tweaked toml for crates.io crate libtuntap 0.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate libtuntap 0.0.2 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b51798506f0eb91e960888ad5c389a009fc47d52e518a5623a36b101b8b5b0ae [INFO] running `Command { std: "docker" "start" "-a" "b51798506f0eb91e960888ad5c389a009fc47d52e518a5623a36b101b8b5b0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b51798506f0eb91e960888ad5c389a009fc47d52e518a5623a36b101b8b5b0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b51798506f0eb91e960888ad5c389a009fc47d52e518a5623a36b101b8b5b0ae", kill_on_drop: false }` [INFO] [stdout] b51798506f0eb91e960888ad5c389a009fc47d52e518a5623a36b101b8b5b0ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 37c7f46d32a54c3b7f2ddc770640d35239a65d8ce2c1c8172df7303fa9d70587 [INFO] running `Command { std: "docker" "start" "-a" "37c7f46d32a54c3b7f2ddc770640d35239a65d8ce2c1c8172df7303fa9d70587", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.82 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling thiserror v1.0.60 [INFO] [stderr] Checking ioctl-sys v0.6.0 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.61 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling thiserror-impl v1.0.60 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking libtuntap v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `global_reactor` is never used [INFO] [stdout] --> src/async/reactor.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn global_reactor() -> &'static mut Reactor { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Reactor` is never constructed [INFO] [stdout] --> src/async/reactor.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct Reactor { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `run_once`, `wakeup`, `add_waker`, and `remove_waker` are never used [INFO] [stdout] --> src/async/reactor.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl Reactor { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 31 | fn new(time_interval: Duration) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn run_once(&mut self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn wakeup(&mut self, token: Token) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn add_waker(&mut self, token: Token, waker: Waker) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 64 | fn remove_waker(&mut self, token: Token) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `try_invoke` is never used [INFO] [stdout] --> src/async/reactor.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 72 | pub fn try_invoke( [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/async/reactor.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | GLOBAL_REACTOR.as_mut().unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `global_reactor` is never used [INFO] [stdout] --> src/async/reactor.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn global_reactor() -> &'static mut Reactor { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Reactor` is never constructed [INFO] [stdout] --> src/async/reactor.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct Reactor { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `run_once`, `wakeup`, `add_waker`, and `remove_waker` are never used [INFO] [stdout] --> src/async/reactor.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl Reactor { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 31 | fn new(time_interval: Duration) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn run_once(&mut self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn wakeup(&mut self, token: Token) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn add_waker(&mut self, token: Token, waker: Waker) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 64 | fn remove_waker(&mut self, token: Token) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `try_invoke` is never used [INFO] [stdout] --> src/async/reactor.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 72 | pub fn try_invoke( [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/async/reactor.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | GLOBAL_REACTOR.as_mut().unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.30s [INFO] running `Command { std: "docker" "inspect" "37c7f46d32a54c3b7f2ddc770640d35239a65d8ce2c1c8172df7303fa9d70587", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37c7f46d32a54c3b7f2ddc770640d35239a65d8ce2c1c8172df7303fa9d70587", kill_on_drop: false }` [INFO] [stdout] 37c7f46d32a54c3b7f2ddc770640d35239a65d8ce2c1c8172df7303fa9d70587