Dec 11 18:13:27.059 INFO checking futurepaul/friend-ui against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 18:13:27.060 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 18:13:27.452 INFO [stdout] 394e587176c92539542599ec436afc2af353712f657013fbafb59ebb2ba423af
Dec 11 18:13:27.454 INFO running `"docker" "start" "-a" "394e587176c92539542599ec436afc2af353712f657013fbafb59ebb2ba423af"`
Dec 11 18:13:28.681 INFO [stderr] usermod: no changes
Dec 11 18:13:28.776 INFO [stderr]     Checking friendui v0.1.0 (/source)
Dec 11 18:13:29.388 INFO [stderr] warning: variable does not need to be mutable
Dec 11 18:13:29.388 INFO [stderr]    --> src/main.rs:139:9
Dec 11 18:13:29.389 INFO [stderr]     |
Dec 11 18:13:29.389 INFO [stderr] 139 |     let mut buffer = Buffer {
Dec 11 18:13:29.389 INFO [stderr]     |         ----^^^^^^
Dec 11 18:13:29.389 INFO [stderr]     |         |
Dec 11 18:13:29.389 INFO [stderr]     |         help: remove this `mut`
Dec 11 18:13:29.389 INFO [stderr]     |
Dec 11 18:13:29.389 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.389 INFO [stderr] warning: field is never used: `width`
Dec 11 18:13:29.389 INFO [stderr]   --> src/main.rs:13:5
Dec 11 18:13:29.389 INFO [stderr]    |
Dec 11 18:13:29.389 INFO [stderr] 13 |     width: u16,
Dec 11 18:13:29.389 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 18:13:29.389 INFO [stderr]    |
Dec 11 18:13:29.389 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.389 INFO [stderr] warning: field is never used: `height`
Dec 11 18:13:29.389 INFO [stderr]   --> src/main.rs:14:5
Dec 11 18:13:29.389 INFO [stderr]    |
Dec 11 18:13:29.389 INFO [stderr] 14 |     height: u16,
Dec 11 18:13:29.389 INFO [stderr]    |     ^^^^^^^^^^^
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.389 INFO [stderr] warning: field is never used: `cursor_x`
Dec 11 18:13:29.389 INFO [stderr]   --> src/main.rs:18:5
Dec 11 18:13:29.389 INFO [stderr]    |
Dec 11 18:13:29.389 INFO [stderr] 18 |     cursor_x: u16,
Dec 11 18:13:29.389 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.389 INFO [stderr] warning: field is never used: `cursor_y`
Dec 11 18:13:29.389 INFO [stderr]   --> src/main.rs:19:5
Dec 11 18:13:29.389 INFO [stderr]    |
Dec 11 18:13:29.389 INFO [stderr] 19 |     cursor_y: u16,
Dec 11 18:13:29.389 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.389 INFO [stderr] warning: field is never used: `height`
Dec 11 18:13:29.389 INFO [stderr]   --> src/main.rs:24:5
Dec 11 18:13:29.389 INFO [stderr]    |
Dec 11 18:13:29.389 INFO [stderr] 24 |     height: u16,
Dec 11 18:13:29.389 INFO [stderr]    |     ^^^^^^^^^^^
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.389 INFO [stderr] warning: struct is never constructed: `Pane`
Dec 11 18:13:29.389 INFO [stderr]    --> src/main.rs:110:1
Dec 11 18:13:29.389 INFO [stderr]     |
Dec 11 18:13:29.389 INFO [stderr] 110 | struct Pane {
Dec 11 18:13:29.389 INFO [stderr]     | ^^^^^^^^^^^
Dec 11 18:13:29.389 INFO [stderr] 
Dec 11 18:13:29.407 INFO [stderr] warning: variable does not need to be mutable
Dec 11 18:13:29.408 INFO [stderr]    --> src/main.rs:139:9
Dec 11 18:13:29.408 INFO [stderr]     |
Dec 11 18:13:29.408 INFO [stderr] 139 |     let mut buffer = Buffer {
Dec 11 18:13:29.408 INFO [stderr]     |         ----^^^^^^
Dec 11 18:13:29.408 INFO [stderr]     |         |
Dec 11 18:13:29.408 INFO [stderr]     |         help: remove this `mut`
Dec 11 18:13:29.408 INFO [stderr]     |
Dec 11 18:13:29.408 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.408 INFO [stderr] warning: field is never used: `width`
Dec 11 18:13:29.408 INFO [stderr]   --> src/main.rs:13:5
Dec 11 18:13:29.408 INFO [stderr]    |
Dec 11 18:13:29.408 INFO [stderr] 13 |     width: u16,
Dec 11 18:13:29.408 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 18:13:29.408 INFO [stderr]    |
Dec 11 18:13:29.408 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.408 INFO [stderr] warning: field is never used: `height`
Dec 11 18:13:29.408 INFO [stderr]   --> src/main.rs:14:5
Dec 11 18:13:29.408 INFO [stderr]    |
Dec 11 18:13:29.408 INFO [stderr] 14 |     height: u16,
Dec 11 18:13:29.408 INFO [stderr]    |     ^^^^^^^^^^^
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.408 INFO [stderr] warning: field is never used: `cursor_x`
Dec 11 18:13:29.408 INFO [stderr]   --> src/main.rs:18:5
Dec 11 18:13:29.408 INFO [stderr]    |
Dec 11 18:13:29.408 INFO [stderr] 18 |     cursor_x: u16,
Dec 11 18:13:29.408 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.408 INFO [stderr] warning: field is never used: `cursor_y`
Dec 11 18:13:29.408 INFO [stderr]   --> src/main.rs:19:5
Dec 11 18:13:29.408 INFO [stderr]    |
Dec 11 18:13:29.408 INFO [stderr] 19 |     cursor_y: u16,
Dec 11 18:13:29.408 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.408 INFO [stderr] warning: field is never used: `height`
Dec 11 18:13:29.408 INFO [stderr]   --> src/main.rs:24:5
Dec 11 18:13:29.408 INFO [stderr]    |
Dec 11 18:13:29.408 INFO [stderr] 24 |     height: u16,
Dec 11 18:13:29.408 INFO [stderr]    |     ^^^^^^^^^^^
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.408 INFO [stderr] warning: struct is never constructed: `Pane`
Dec 11 18:13:29.408 INFO [stderr]    --> src/main.rs:110:1
Dec 11 18:13:29.408 INFO [stderr]     |
Dec 11 18:13:29.408 INFO [stderr] 110 | struct Pane {
Dec 11 18:13:29.408 INFO [stderr]     | ^^^^^^^^^^^
Dec 11 18:13:29.408 INFO [stderr] 
Dec 11 18:13:29.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:13:29.424 INFO [stderr]   --> src/main.rs:68:8
Dec 11 18:13:29.424 INFO [stderr]    |
Dec 11 18:13:29.424 INFO [stderr] 68 |        write!(self.stdout, "{}x{}", size.0, size.1);
Dec 11 18:13:29.424 INFO [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:13:29.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:13:29.424 INFO [stderr]   --> src/main.rs:68:8
Dec 11 18:13:29.424 INFO [stderr]    |
Dec 11 18:13:29.424 INFO [stderr] 68 |        write!(self.stdout, "{}x{}", size.0, size.1);
Dec 11 18:13:29.424 INFO [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:13:29.424 INFO [stderr]    |
Dec 11 18:13:29.424 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 18:13:29.424 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:13:29.424 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 18:13:29.424 INFO [stderr] 
Dec 11 18:13:29.424 INFO [stderr]    |
Dec 11 18:13:29.424 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 18:13:29.424 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:13:29.425 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 18:13:29.425 INFO [stderr] 
Dec 11 18:13:29.469 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 11 18:13:29.481 INFO [stderr] su: No module specific data is present
Dec 11 18:13:30.540 INFO running `"docker" "inspect" "394e587176c92539542599ec436afc2af353712f657013fbafb59ebb2ba423af"`
Dec 11 18:13:30.750 INFO running `"docker" "rm" "-f" "394e587176c92539542599ec436afc2af353712f657013fbafb59ebb2ba423af"`
Dec 11 18:13:30.967 INFO [stdout] 394e587176c92539542599ec436afc2af353712f657013fbafb59ebb2ba423af