Dec 19 16:46:46.591 INFO checking fschutt/xlib-programming-rust against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:46:46.592 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:46:47.092 INFO [stdout] 0e9fb48be3d34b711ea8088e26fe8a8bfe56aedb2a1051f6c9484095a600dfae
Dec 19 16:46:47.092 INFO running `"docker" "start" "-a" "0e9fb48be3d34b711ea8088e26fe8a8bfe56aedb2a1051f6c9484095a600dfae"`
Dec 19 16:46:48.340 INFO [stderr]    Compiling metadeps v1.1.2
Dec 19 16:46:48.340 INFO [stderr]     Checking x11-dl v2.14.0
Dec 19 16:46:49.000 INFO [stderr]    Compiling dbus v0.5.3
Dec 19 16:46:52.797 INFO [stderr]     Checking xlibprogramming v0.1.0 (/opt/crater/workdir)
Dec 19 16:46:52.999 INFO [stderr] warning: unused imports: `CurrentTime`, `GrabModeAsync`
Dec 19 16:46:52.999 INFO [stderr]  --> src/main.rs:7:33
Dec 19 16:46:52.999 INFO [stderr]   |
Dec 19 16:46:52.999 INFO [stderr] 7 | use x11_dl::xlib::{True, False, GrabModeAsync, CurrentTime, XEvent};
Dec 19 16:46:52.999 INFO [stderr]   |                                 ^^^^^^^^^^^^^  ^^^^^^^^^^^
Dec 19 16:46:52.999 INFO [stderr]   |
Dec 19 16:46:52.999 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 16:46:52.999 INFO [stderr] 
Dec 19 16:46:53.026 INFO [stderr] warning: unused imports: `CurrentTime`, `GrabModeAsync`
Dec 19 16:46:53.026 INFO [stderr]  --> src/main.rs:7:33
Dec 19 16:46:53.026 INFO [stderr]   |
Dec 19 16:46:53.026 INFO [stderr] 7 | use x11_dl::xlib::{True, False, GrabModeAsync, CurrentTime, XEvent};
Dec 19 16:46:53.026 INFO [stderr]   |                                 ^^^^^^^^^^^^^  ^^^^^^^^^^^
Dec 19 16:46:53.026 INFO [stderr]   |
Dec 19 16:46:53.026 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 16:46:53.026 INFO [stderr] 
Dec 19 16:46:53.071 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:46:53.071 INFO [stderr]   --> examples/simple_opengl_window.rs:44:9
Dec 19 16:46:53.071 INFO [stderr]    |
Dec 19 16:46:53.072 INFO [stderr] 44 |     let mut display = {
Dec 19 16:46:53.072 INFO [stderr]    |         ----^^^^^^^
Dec 19 16:46:53.072 INFO [stderr]    |         |
Dec 19 16:46:53.072 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:46:53.072 INFO [stderr]    |
Dec 19 16:46:53.072 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:46:53.072 INFO [stderr] 
Dec 19 16:46:53.072 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:46:53.072 INFO [stderr]   --> examples/simple_opengl_window.rs:64:9
Dec 19 16:46:53.072 INFO [stderr]    |
Dec 19 16:46:53.072 INFO [stderr] 64 |     let mut visual_info = { if vi.is_null() {
Dec 19 16:46:53.072 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 19 16:46:53.072 INFO [stderr]    |         |
Dec 19 16:46:53.072 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:46:53.076 INFO [stderr] 
Dec 19 16:46:53.137 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
Dec 19 16:46:53.384 INFO running `"docker" "inspect" "0e9fb48be3d34b711ea8088e26fe8a8bfe56aedb2a1051f6c9484095a600dfae"`
Dec 19 16:46:53.456 INFO running `"docker" "rm" "-f" "0e9fb48be3d34b711ea8088e26fe8a8bfe56aedb2a1051f6c9484095a600dfae"`
Dec 19 16:46:53.618 INFO [stdout] 0e9fb48be3d34b711ea8088e26fe8a8bfe56aedb2a1051f6c9484095a600dfae