Dec 18 00:03:12.115 INFO checking fschutt/xlib-programming-rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 00:03:12.116 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/fschutt/xlib-programming-rust:/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 00:03:12.594 INFO [stdout] 83335e2dbaa7063812103a085fc63be0851a613fc3844036c28e02d0cdb8cfab
Dec 18 00:03:12.596 INFO running `"docker" "start" "-a" "83335e2dbaa7063812103a085fc63be0851a613fc3844036c28e02d0cdb8cfab"`
Dec 18 00:03:14.292 INFO [stderr]    Compiling dbus v0.5.3
Dec 18 00:03:17.815 INFO [stderr]     Checking xlibprogramming v0.1.0 (/opt/crater/workdir)
Dec 18 00:03:18.025 INFO [stderr] warning: unused imports: `CurrentTime`, `GrabModeAsync`
Dec 18 00:03:18.025 INFO [stderr]  --> src/main.rs:7:33
Dec 18 00:03:18.025 INFO [stderr]   |
Dec 18 00:03:18.025 INFO [stderr] 7 | use x11_dl::xlib::{True, False, GrabModeAsync, CurrentTime, XEvent};
Dec 18 00:03:18.025 INFO [stderr]   |                                 ^^^^^^^^^^^^^  ^^^^^^^^^^^
Dec 18 00:03:18.026 INFO [stderr]   |
Dec 18 00:03:18.026 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 00:03:18.026 INFO [stderr] 
Dec 18 00:03:18.084 INFO [stderr] warning: unused imports: `CurrentTime`, `GrabModeAsync`
Dec 18 00:03:18.084 INFO [stderr]  --> src/main.rs:7:33
Dec 18 00:03:18.084 INFO [stderr]   |
Dec 18 00:03:18.084 INFO [stderr] 7 | use x11_dl::xlib::{True, False, GrabModeAsync, CurrentTime, XEvent};
Dec 18 00:03:18.085 INFO [stderr]   |                                 ^^^^^^^^^^^^^  ^^^^^^^^^^^
Dec 18 00:03:18.085 INFO [stderr]   |
Dec 18 00:03:18.085 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 00:03:18.085 INFO [stderr] 
Dec 18 00:03:18.108 INFO [stderr] warning: variable does not need to be mutable
Dec 18 00:03:18.108 INFO [stderr]   --> examples/simple_opengl_window.rs:44:9
Dec 18 00:03:18.109 INFO [stderr]    |
Dec 18 00:03:18.109 INFO [stderr] 44 |     let mut display = {
Dec 18 00:03:18.109 INFO [stderr]    |         ----^^^^^^^
Dec 18 00:03:18.109 INFO [stderr]    |         |
Dec 18 00:03:18.109 INFO [stderr]    |         help: remove this `mut`
Dec 18 00:03:18.109 INFO [stderr]    |
Dec 18 00:03:18.109 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 00:03:18.109 INFO [stderr] 
Dec 18 00:03:18.109 INFO [stderr] warning: variable does not need to be mutable
Dec 18 00:03:18.109 INFO [stderr]   --> examples/simple_opengl_window.rs:64:9
Dec 18 00:03:18.109 INFO [stderr]    |
Dec 18 00:03:18.109 INFO [stderr] 64 |     let mut visual_info = { if vi.is_null() {
Dec 18 00:03:18.109 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 18 00:03:18.109 INFO [stderr]    |         |
Dec 18 00:03:18.109 INFO [stderr]    |         help: remove this `mut`
Dec 18 00:03:18.109 INFO [stderr] 
Dec 18 00:03:18.209 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
Dec 18 00:03:18.474 INFO running `"docker" "inspect" "83335e2dbaa7063812103a085fc63be0851a613fc3844036c28e02d0cdb8cfab"`
Dec 18 00:03:18.599 INFO running `"docker" "rm" "-f" "83335e2dbaa7063812103a085fc63be0851a613fc3844036c28e02d0cdb8cfab"`
Dec 18 00:03:18.682 INFO [stdout] 83335e2dbaa7063812103a085fc63be0851a613fc3844036c28e02d0cdb8cfab