Record Case Detail

This function is in beta test. Please help improve it in the issues here.

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==10497==ERROR: AddressSanitizer: heap-use-after-free on address 0x604000000090 at pc 0x00000051c84a bp 0x7ffcd3e830f0 sp 0x7ffcd3e830e8
READ of size 4 at 0x604000000090 thread T0
    #0 0x51c849  (/out/package/call_mem+0x51c849)
    #1 0x7f01a82dec86  (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
    #2 0x41da19  (/out/package/call_mem+0x41da19)

0x604000000090 is located 0 bytes inside of 48-byte region [0x604000000090,0x6040000000c0)
freed by thread T0 here:
    #0 0x516bf8  (/out/package/call_mem+0x516bf8)
    #1 0x51abd0  (/out/package/call_mem+0x51abd0)
    #2 0x7f01a82dec86  (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

previously allocated by thread T0 here:
    #0 0x515e80  (/out/package/call_mem+0x515e80)
    #1 0x51a474  (/out/package/call_mem+0x51a474)
    #2 0x7f01a82dec86  (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

SUMMARY: AddressSanitizer: heap-use-after-free (/out/package/call_mem+0x51c849) 
Shadow bytes around the buggy address:
  0x

Your answer may be identical to the JOJ answer in the first several lines.

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

Please double check your code to solve this problem and try again.

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