1594737074490,fatal error: concurrent map read and map write
1594737074493,goroutine 1385994 [running]:
1594737074493,"runtime.throw(0x10170e9, 0x21)"
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/runtime/panic.go:774 +0x72 fp=0xc00096ea80 sp=0xc00096ea50 pc=0x42dc02
1594737074493,"runtime.mapaccess1(0xe630a0, 0xc000396060, 0xc00096eb60, 0x19844c0)"
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/runtime/map.go:411 +0x269 fp=0xc00096eac8 sp=0xc00096ea80 pc=0x40da49
1594737074493,"net/http.(*Transport).removeIdleConnLocked(0x1957300, 0xc00116e480, 0x8)"
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/net/http/transport.go:983 +0x1ac fp=0xc00096eba8 sp=0xc00096eac8 pc=0x6bcc4c
1594737074493,"net/http.(*Transport).removeIdleConn(0x1957300, 0xc00116e480, 0xc000080b00)"
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/net/http/transport.go:973 +0x80 fp=0xc00096ec08 sp=0xc00096eba8 pc=0x6bca50
1594737074493,"net/http.(*persistConn).readLoop.func1(0xc00116e480, 0xc00096ed88)"
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/net/http/transport.go:1880 +0x58 fp=0xc00096ec30 sp=0xc00096ec08 pc=0x6ca168
1594737074493,net/http.(*persistConn).readLoop(0xc00116e480)
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/net/http/transport.go:1917 +0x1148 fp=0xc00096efd8 sp=0xc00096ec30 pc=0x6c37b8
1594737074493,runtime.goexit()
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/runtime/asm_amd64.s:1357 +0x1 fp=0xc00096efe0 sp=0xc00096efd8 pc=0x45b151
1594737074493,created by net/http.(*Transport).dialConn
1594737074493, /home/travis/.gimme/versions/go1.13.8.linux.amd64/src/net/http/transport.go:1580 +0xb0d