Dec 18 08:33:11.437 INFO checking AnthonyP4312/i3-alt-tab against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:33:11.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/AnthonyP4312/i3-alt-tab:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:33:11.860 INFO [stdout] b6c55d138f97174e247bfe5b6e5caa3cbafb49fae3c1b23a8043edf1c0ff2b39
Dec 18 08:33:11.862 INFO running `"docker" "start" "-a" "b6c55d138f97174e247bfe5b6e5caa3cbafb49fae3c1b23a8043edf1c0ff2b39"`
Dec 18 08:33:13.416 INFO [stderr]     Checking alt_tabber v0.1.0 (/opt/crater/workdir)
Dec 18 08:33:15.054 INFO [stderr] warning: unused variable: `child_c`
Dec 18 08:33:15.054 INFO [stderr]   --> src/main.rs:85:13
Dec 18 08:33:15.054 INFO [stderr]    |
Dec 18 08:33:15.054 INFO [stderr] 85 |         let child_c = Node {
Dec 18 08:33:15.054 INFO [stderr]    |             ^^^^^^^ help: consider using `_child_c` instead
Dec 18 08:33:15.054 INFO [stderr]    |
Dec 18 08:33:15.054 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:33:15.054 INFO [stderr] 
Dec 18 08:33:15.054 INFO [stderr] warning: unused variable: `node_with_children`
Dec 18 08:33:15.054 INFO [stderr]   --> src/main.rs:89:13
Dec 18 08:33:15.054 INFO [stderr]    |
Dec 18 08:33:15.054 INFO [stderr] 89 |         let node_with_children = Node {
Dec 18 08:33:15.054 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: consider using `_node_with_children` instead
Dec 18 08:33:15.054 INFO [stderr] 
Dec 18 08:33:15.067 INFO [stderr] warning: function is never used: `setup`
Dec 18 08:33:15.067 INFO [stderr]   --> src/main.rs:67:5
Dec 18 08:33:15.067 INFO [stderr]    |
Dec 18 08:33:15.067 INFO [stderr] 67 |     fn setup() {
Dec 18 08:33:15.067 INFO [stderr]    |     ^^^^^^^^^^
Dec 18 08:33:15.067 INFO [stderr]    |
Dec 18 08:33:15.067 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 08:33:15.067 INFO [stderr] 
Dec 18 08:33:15.072 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:33:15.072 INFO [stderr]   --> src/main.rs:39:5
Dec 18 08:33:15.072 INFO [stderr]    |
Dec 18 08:33:15.072 INFO [stderr] 39 | /     Command::new("i3-msg")
Dec 18 08:33:15.072 INFO [stderr] 40 | |         .arg(format!("[con_id={}] focus", next.id))
Dec 18 08:33:15.072 INFO [stderr] 41 | |         .output();
Dec 18 08:33:15.072 INFO [stderr]    | |__________________^
Dec 18 08:33:15.072 INFO [stderr]    |
Dec 18 08:33:15.072 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 08:33:15.072 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:33:15.072 INFO [stderr] 
Dec 18 08:33:15.148 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:33:15.148 INFO [stderr]   --> src/main.rs:39:5
Dec 18 08:33:15.148 INFO [stderr]    |
Dec 18 08:33:15.148 INFO [stderr] 39 | /     Command::new("i3-msg")
Dec 18 08:33:15.148 INFO [stderr] 40 | |         .arg(format!("[con_id={}] focus", next.id))
Dec 18 08:33:15.148 INFO [stderr] 41 | |         .output();
Dec 18 08:33:15.148 INFO [stderr]    | |__________________^
Dec 18 08:33:15.148 INFO [stderr]    |
Dec 18 08:33:15.148 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 08:33:15.148 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:33:15.148 INFO [stderr] 
Dec 18 08:33:15.175 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
Dec 18 08:33:15.494 INFO running `"docker" "inspect" "b6c55d138f97174e247bfe5b6e5caa3cbafb49fae3c1b23a8043edf1c0ff2b39"`
Dec 18 08:33:15.618 INFO running `"docker" "rm" "-f" "b6c55d138f97174e247bfe5b6e5caa3cbafb49fae3c1b23a8043edf1c0ff2b39"`
Dec 18 08:33:15.904 INFO [stdout] b6c55d138f97174e247bfe5b6e5caa3cbafb49fae3c1b23a8043edf1c0ff2b39