[INFO] fetching crate libtuntap 0.0.2...
[INFO] checking libtuntap-0.0.2 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate libtuntap 0.0.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate libtuntap 0.0.2 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "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-6-tc1/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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ioctl-sys v0.6.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.60
[INFO] [stderr]   Downloaded thiserror v1.0.60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e76f7b8fda0fab3a7e6bbe76854dd41af0e9ca8394d5bacf69725d8b0bc44a4
[INFO] running `Command { std: "docker" "start" "-a" "9e76f7b8fda0fab3a7e6bbe76854dd41af0e9ca8394d5bacf69725d8b0bc44a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e76f7b8fda0fab3a7e6bbe76854dd41af0e9ca8394d5bacf69725d8b0bc44a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e76f7b8fda0fab3a7e6bbe76854dd41af0e9ca8394d5bacf69725d8b0bc44a4", kill_on_drop: false }`
[INFO] [stdout] 9e76f7b8fda0fab3a7e6bbe76854dd41af0e9ca8394d5bacf69725d8b0bc44a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0c143f73c76e83650e32c9a6221ea9b9d519537215bc66b98f6480f18bb56ee
[INFO] running `Command { std: "docker" "start" "-a" "e0c143f73c76e83650e32c9a6221ea9b9d519537215bc66b98f6480f18bb56ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[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<F, T>(
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 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<F, T>(
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.20s
[INFO] running `Command { std: "docker" "inspect" "e0c143f73c76e83650e32c9a6221ea9b9d519537215bc66b98f6480f18bb56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0c143f73c76e83650e32c9a6221ea9b9d519537215bc66b98f6480f18bb56ee", kill_on_drop: false }`
[INFO] [stdout] e0c143f73c76e83650e32c9a6221ea9b9d519537215bc66b98f6480f18bb56ee