[INFO] fetching crate if-watch 3.2.1...
[INFO] testing if-watch-3.2.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate if-watch 3.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate if-watch 3.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate if-watch 3.2.1
[INFO] tweaked toml for crates.io crate if-watch 3.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate if-watch 3.2.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate if-watch 3.2.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a5b399203759e8135b106efa4048bb7cb0e5cd6a2bf6aa7493c917fefdcaed2
[INFO] running `Command { std: "docker" "start" "-a" "4a5b399203759e8135b106efa4048bb7cb0e5cd6a2bf6aa7493c917fefdcaed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a5b399203759e8135b106efa4048bb7cb0e5cd6a2bf6aa7493c917fefdcaed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5b399203759e8135b106efa4048bb7cb0e5cd6a2bf6aa7493c917fefdcaed2", kill_on_drop: false }`
[INFO] [stdout] 4a5b399203759e8135b106efa4048bb7cb0e5cd6a2bf6aa7493c917fefdcaed2
[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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b4f1764170aac5865d9e04eca3d51a5aacadeadea06bbf2bbe23fd8e380ceb6
[INFO] running `Command { std: "docker" "start" "-a" "6b4f1764170aac5865d9e04eca3d51a5aacadeadea06bbf2bbe23fd8e380ceb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling bytes v1.8.0
[INFO] [stderr]    Compiling ipnet v2.10.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio v1.41.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling netlink-sys v0.8.6
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling netlink-packet-utils v0.5.2
[INFO] [stderr]    Compiling netlink-packet-core v0.7.0
[INFO] [stderr]    Compiling netlink-packet-route v0.17.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling netlink-proto v0.11.3
[INFO] [stderr]    Compiling rtnetlink v0.13.1
[INFO] [stderr]    Compiling if-watch v3.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `IfWatcher` is never constructed
[INFO] [stdout]   --> src/linux.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct IfWatcher<T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout]  3 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: associated items `new`, `iter`, `add_address`, `rem_address`, and `poll_if_event` are never used
[INFO] [stdout]    --> src/linux.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  52 | / impl<T> IfWatcher<T>
[INFO] [stdout]  53 | | where
[INFO] [stdout]  54 | |     T: AsyncSocket + Unpin,
[INFO] [stdout]     | |___________________________- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  57 |       pub fn new() -> Result<Self> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  87 |       pub fn iter(&self) -> impl Iterator<Item = &IpNet> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |       fn add_address(&mut self, msg: AddressMessage) {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |       fn rem_address(&mut self, msg: AddressMessage) {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |       pub fn poll_if_event(&mut self, cx: &mut Context) -> Poll<Result<IfEvent>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function `socket_err` is never used
[INFO] [stdout]    --> src/linux.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn socket_err(error: &str) -> std::io::Error {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function `iter_nets` is never used
[INFO] [stdout]    --> src/linux.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn iter_nets(msg: AddressMessage) -> impl Iterator<Item = IpNet> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `if-watch` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "6b4f1764170aac5865d9e04eca3d51a5aacadeadea06bbf2bbe23fd8e380ceb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b4f1764170aac5865d9e04eca3d51a5aacadeadea06bbf2bbe23fd8e380ceb6", kill_on_drop: false }`
[INFO] [stdout] 6b4f1764170aac5865d9e04eca3d51a5aacadeadea06bbf2bbe23fd8e380ceb6
