Exit instead of panicking on X11 connection loss. #5

Job	Run time
Check for typos	4s
Check formatting	11s
Run cargo-deny on Android	25s
Run cargo-deny on iOS	21s
Test stable Windows 64bit MSVC	2m 6s
Run cargo-deny on Linux	25s
Test stable Windows 32bit MSVC	2m 8s
Run cargo-deny on macOS	24s
Test stable Windows 64bit GNU	1m 53s
Run cargo-deny on Redox OS	23s
Test stable Windows 32bit GNU	2m 13s
Test stable Linux 32bit	1m 58s
Run cargo-deny on web	23s
Test stable Linux 64bit	1m 54s
Run cargo-deny on Windows	22s
Test stable X11	1m 35s
Test stable Wayland	1m 38s
Test stable Android	1m 4s
Test stable Redox OS	25s
Test stable macOS	53s
Test stable iOS x86_64	49s
Test stable iOS Aarch64	55s
Test stable web	50s
Test nightly Windows 64bit MSVC	57s
Test nightly Windows 32bit MSVC	59s
Test nightly Windows 64bit GNU	59s
Test nightly Windows 32bit GNU	1m 4s
Test nightly Linux 32bit	45s
Test nightly Linux 64bit	36s
Test nightly X11	32s
Test nightly Wayland	36s
Test nightly Android	27s
Test nightly Redox OS	16s
Test nightly macOS	25s
Test nightly iOS x86_64	27s
Test nightly iOS Aarch64	26s
Test nightly web	32s
Test 1.70.0 Windows 64bit MSVC	1m 1s
Test 1.70.0 Windows 32bit MSVC	1m 9s
Test 1.70.0 Windows 64bit GNU	1m 12s
Test 1.70.0 Windows 32bit GNU	1m 4s
Test 1.70.0 Linux 32bit	1m 20s
Test 1.70.0 Linux 64bit	59s
Test 1.70.0 X11	55s
Test 1.70.0 Wayland	51s
Test 1.70.0 Redox OS	23s
Test 1.70.0 macOS	33s
Test 1.70.0 iOS x86_64	33s
Test 1.70.0 iOS Aarch64	35s
Test 1.70.0 web	45s
Test 1.70.0 Android	38s
Test nightly web Atomic	39s
	44m 57s

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