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This happens just once on CI and wasn't reproduce on rebuilding same commit on CI.

+ golangci-lint run
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x50 pc=0x99471f]

goroutine 4084 [running]:*runner).run(0xc0000b8dc0, 0xc01523e140, 0x10, 0xd1d9e0, 0x45f692d19a978201, 0xc034e87250)
	/home/travis/gopath/src/ +0x1af*action).execOnce(0xc01d5bf4a0)
	/home/travis/gopath/src/ +0x68a
sync.(*Once).Do(0xc01d5bf4a0, 0xc0015d3f90)
	/home/travis/.gimme/versions/go1.12.5.linux.amd64/src/sync/once.go:44 +0xb3*action).exec(0xc01d5bf4a0)
	/home/travis/gopath/src/ +0x50
	/home/travis/gopath/src/ +0x34
created by
	/home/travis/gopath/src/ +0x11b
$ golangci-lint --version
golangci-lint has version 1.17.1 built from 4ba2155 on 2019-06-10T09:06:49Z

$ go version && go env
go version go1.12.6 linux/amd64
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build343332231=/tmp/go-build -gno-record-gcc-switches"

$ cat .golangci.yml
# This file contains all available configuration options
# with their default values.

# options for analysis running
  # default concurrency is a available CPU number
  # concurrency: 4

  # timeout for analysis, e.g. 30s, 5m, default is 1m
  # deadline: 1m

  # exit code when at least one issue was found, default is 1
  # issues-exit-code: 1

  # include test files or not, default is true
  # tests: true

  # list of build tags, all linters use it. Default is empty list.
    - integration

  # which dirs to skip: they won't be analyzed;
  # can use regexp here: generated.*, regexp is applied on full path;
  # default value is empty list, but next dirs are always skipped independently
  # from this option's value:
  #   	vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
  # skip-dirs:
  #   - src/external_libs
  #   - autogenerated_by_my_lib

  # which files to skip: they will be analyzed, but issues from them
  # won't be reported. Default value is empty list, but there is
  # no need to include all autogenerated files, we confidently recognize
  # autogenerated files. If it's not please let us know.
    - "\\.html\\.go$"
    - "\\.json\\.go$"
    - "\\.sql\\.go$"
    - "_reform\\.go$"

  # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules":
  # If invoked with -mod=readonly, the go command is disallowed from the implicit
  # automatic updating of go.mod described above. Instead, it fails when any changes
  # to go.mod are needed. This setting is most useful to check that go.mod does
  # not need updates, such as in a continuous integration and testing system.
  # If invoked with -mod=vendor, the go command assumes that the vendor
  # directory holds the correct copies of dependencies and ignores
  # the dependency descriptions in go.mod.
  modules-download-mode: vendor

# output configuration options
  # colored-line-number|line-number|json|tab|checkstyle|code-climate, default is "colored-line-number"
  # format: colored-line-number

  # print lines of code with issue, default is true
  # print-issued-lines: true

  # print linter name in the end of issue text, default is true
  # print-linter-name: true

# all available settings of specific linters
    # report about not checking of errors in type assetions: `a := b.(MyStruct)`;
    # default is false: such cases aren't reported by default.
    # check-type-assertions: false

    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
    # default is false: such cases aren't reported by default.
    # check-blank: false

    # [deprecated] comma-separated list of pairs of the form pkg:regex
    # the regex is used to ignore names within pkg. (default "fmt:.*").
    # see for details
    # ignore: fmt:.*,io/ioutil:^Read.*

    # path to a file containing a list of functions to exclude from checking
    # see for details
    # exclude: .errcheck.excludes
    # report about shadowed variables
    check-shadowing: true

    # settings per analyzer
      printf: # analyzer name, run `go tool vet help` to see all analyzers
        funcs: # run `go tool vet help printf` to see available settings for `printf` analyzer
          # - (
          # - (
          # - (
    # minimal confidence for issues, default is 0.8
    # min-confidence: 0.8
    # simplify code: gofmt with `-s` option, true by default
    # simplify: true
    # put imports beginning with prefix after 3rd-party packages;
    # it's a comma-separated list of prefixes
    # local-prefixes:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 15
    # print struct with more effective memory layout or not, false by default
    suggest-new: true
    # tokens count to trigger issue, 150 by default
    threshold: 100
    # minimal length of string constant, 3 by default
    # min-len: 3
    # minimal occurrences count to trigger, 3 by default
    # min-occurrences: 3
    list-type: blacklist
    include-go-root: true
      - log
    # Correct spellings using locale preferences for US or UK.
    # Default is to use a neutral variety of English.
    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
    # locale: US
    # ignore-words:
    #   - someword
    # max line length, lines longer will be reported. Default is 120.
    # '\t' is counted as 1 character by default, and can be changed with the tab-width option
    # line-length: 120
    # tab width in spaces. Default to 1.
    # tab-width: 1
    # treat code as a program (not a library) and report unused exported identifiers; default is false.
    # XXX: if you enable this setting, unused will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find funcs usages. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    # check-exported: false
    # Inspect exported functions, default is false. Set to true if no external program/library imports your code.
    # XXX: if you enable this setting, unparam will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find external interfaces. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    # check-exported: false
    # make an issue if func has more lines of code than this setting and it has naked returns; default is 30
    # max-func-lines: 30
    # XXX: we don't recommend using this linter before doing performance profiling.
    # For most programs usage of prealloc will be a premature optimization.

    # Report preallocation suggestions only on simple loops that have no returns/breaks/continues/gotos in them.
    # True by default.
    # simple: true
    # range-loops: true # Report preallocation suggestions on range loops, true by default
    # for-loops: false # Report preallocation suggestions on for loops, false by default
    # Which checks should be enabled; can't be combined with 'disabled-checks';
    # See
    # To check which checks are enabled run `GL_DEBUG=gocritic golangci-lint run`
    # By default list of stable checks is used.
    # enabled-checks:
    #   - rangeValCopy

    # Which checks should be disabled; can't be combined with 'enabled-checks'; default is empty
      - hugeParam # premature optimization
      - paramTypeCombine # questionable

    # Enable multiple checks by tags, run `GL_DEBUG=gocritic golangci-lint` run to see all tags and checks.
    # Empty list by default. See -> section "Tags".
      - diagnostic
      - style
      - performance
      - experimental
      - opinionated

    settings: # settings passed to gocritic
      captLocal: # must be valid enabled check name
        paramsOnly: true
        sizeThreshold: 32

  # enable:
  #   - megacheck
  #   - govet
  enable-all: true
    # - dupl
    # - gochecknoglobals
    # - gochecknoinits
    - lll
    # - misspell
    - prealloc
  # disable-all: false
  # presets:
  #   - bugs
  #   - unused
  fast: false

  # List of regexps of issue texts to exclude, empty list by default.
  # But independently from this option we use default exclude patterns,
  # it can be disabled by `exclude-use-default: false`. To list all
  # excluded by default patterns execute `golangci-lint run --help`
    - "declaration of \"(log|err|ctx)\" shadows"
    - "Potential file inclusion via variable" # [DEFAULT] gosec: False positive is triggered by 'src, err := ioutil.ReadFile(filename)'

  # Excluding configuration per-path, per-linter, per-text and per-source
    # Exclude some linters from running on tests files.
    - path: _test\.go|testing\.go
        - gocyclo
        - bodyclose
        - errcheck
        - dupl
        - gosec
        - gochecknoinits
        - gochecknoglobals

    # Ease some gocritic warnings on test files.
    - path: _test\.go|testing\.go
      text: "(unnamedResult|exitAfterDefer|rangeValCopy)"
        - gocritic

    # Package def is designed to contain global constants.
    - path: internal/def/
        - gochecknoglobals

    # Exclude known linters from partially hard-vendored code,
    # which is impossible to exclude via "nolint" comments.
    # - path: internal/hmac/
    #   text: "weak cryptographic primitive"
    #   linters:
    #     - gosec

    # Exclude some staticcheck messages
    # - linters:
    #     - staticcheck
    #   text: "SA9003:"

    # Exclude lll issues for long lines with go:generate
    # - linters:
    #     - lll
    #   source: "^//go:generate "

  # Independently from option `exclude` we use default exclude patterns,
  # it can be disabled by this option. To list all
  # excluded by default patterns execute `golangci-lint run --help`.
  # Default value for this option is true.
  exclude-use-default: false

  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
  max-issues-per-linter: 0

  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
  max-same-issues: 0

  # Show only new issues: if there are unstaged changes or untracked files,
  # only those changes are analyzed, else only changes in HEAD~ are analyzed.
  # It's a super-useful option for integration of golangci-lint into existing
  # large codebase. It's not practical to fix all existing issues at the moment
  # of integration: much better don't allow issues in new code.
  # Default is false.
  # new: false

  # Show only new issues created after git revision `REV`
  # new-from-rev: REV

  # Show only new issues created in git patch with set file path.
  # new-from-patch: path/to/patch/file

Answer questions stevenh

Raised a new issue to track this here:


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