goc运行大概8天就会重启一次，重启时的日志如下

[zhuang111]

fatal error: concurrent map iteration and map write

goroutine 232621 [running]:
runtime.throw({0xbae576?, 0xc00056f438?})
/opt/hostedtoolcache/go/1.18.3/x64/src/runtime/panic.go:992 +0x71 fp=0xc00056f3d8 sp=0xc00056f3a8 pc=0x434431
runtime.mapiternext(0xb9058d?)
/opt/hostedtoolcache/go/1.18.3/x64/src/runtime/map.go:871 +0x4eb fp=0xc00056f448 sp=0xc00056f3d8 pc=0x40fd2b
github.com/qiniu/goc/pkg/cover.(*fileStore).Set(0xc000486b80, 0xc00030a7b0?)
/home/runner/work/goc/goc/pkg/cover/store.go:186 +0x1d3 fp=0xc00056f588 sp=0xc00056f448 pc=0x93b153
github.com/qiniu/goc/pkg/cover.(*fileStore).Remove(0xc000486b80, {0xc00030a7b0?, 0xc0001ce070?})
/home/runner/work/goc/goc/pkg/cover/store.go:113 +0x5e fp=0xc00056f5b0 sp=0xc00056f588 pc=0x93a67e
github.com/qiniu/goc/pkg/cover.(*server).removeServices(0xc00039ff00, 0xc000414300)
/home/runner/work/goc/goc/pkg/cover/server.go:318 +0x335 fp=0xc00056f6b0 sp=0xc00056f5b0 pc=0x9390f5
github.com/qiniu/goc/pkg/cover.(*server).removeServices-fm(0xc00070d708?)
:1 +0x2c fp=0xc00056f6d0 sp=0xc00056f6b0 pc=0x93ceec
github.com/gin-gonic/gin.(*Context).Next(...)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:165
github.com/gin-gonic/gin.CustomRecoveryWithWriter.func1(0xc000414300)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/recovery.go:99 +0x82 fp=0xc00056f720 sp=0xc00056f6d0 pc=0x924862
github.com/gin-gonic/gin.(*Context).Next(...)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:165
github.com/gin-gonic/gin.LoggerWithConfig.func1(0xc000414300)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/logger.go:241 +0xe7 fp=0xc00056f8d8 sp=0xc00056f720 pc=0x923987
github.com/gin-gonic/gin.(*Context).Next(...)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:165
github.com/gin-gonic/gin.(*Engine).handleHTTPRequest(0xc0004a41a0, 0xc000414300)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:489 +0x63e fp=0xc00056fa58 sp=0xc00056f8d8 pc=0x922a3e
github.com/gin-gonic/gin.(*Engine).ServeHTTP(0xc0004a41a0, {0xca8e78?, 0xc00038e000}, 0xc000414200)
/home/runner/go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:445 +0x1c5 fp=0xc00056fa98 sp=0xc00056fa58 pc=0x922225
net/http.serverHandler.ServeHTTP({0xca6a00?}, {0xca8e78, 0xc00038e000}, 0xc000414200)
/opt/hostedtoolcache/go/1.18.3/x64/src/net/http/server.go:2916 +0x43b fp=0xc00056fb58 sp=0xc00056fa98 pc=0x6d075b
net/http.(*conn).serve(0xc0004a7360, {0xca9730, 0xc0004b6240})
/opt/hostedtoolcache/go/1.18.3/x64/src/net/http/server.go:1966 +0x5d7 fp=0xc00056ffb8 sp=0xc00056fb58 pc=0x6cb757
net/http.(*Server).Serve.func3()
/opt/hostedtoolcache/go/1.18.3/x64/src/net/http/server.go:3071 +0x2e fp=0xc00056ffe0 sp=0xc00056ffb8 pc=0x6d10ae
runtime.goexit()
/opt/hostedtoolcache/go/1.18.3/x64/src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00056ffe8 sp=0xc00056ffe0 pc=0x463ae1
created by net/http.(*Server).Serve
/opt/hostedtoolcache/go/1.18.3/x64/src/net/http/server.go:3071 +0x4db