8 files changed, 17 insertions, 7 deletions
diff --git a/tools/nixery/server/builder/archive.go b/tools/nixery/server/builder/archive.go
index 43fd197083e1..6d5033f13182 100644
--- a/tools/nixery/server/builder/archive.go
+++ b/tools/nixery/server/builder/archive.go
@@ -10,11 +10,11 @@ package builder
 import (
 	"archive/tar"
 	"io"
-	"log"
 	"os"
 	"path/filepath"
 
 	"github.com/google/nixery/layers"
+	log "github.com/sirupsen/logrus"
 )
 
 // Create a new tarball from each of the paths in the list and write the tarball
diff --git a/tools/nixery/server/builder/builder.go b/tools/nixery/server/builder/builder.go
index 7f391838f604..3f085c565554 100644
--- a/tools/nixery/server/builder/builder.go
+++ b/tools/nixery/server/builder/builder.go
@@ -26,7 +26,6 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
-	"log"
 	"net/http"
 	"net/url"
 	"os"
@@ -38,6 +37,7 @@ import (
 	"github.com/google/nixery/config"
 	"github.com/google/nixery/layers"
 	"github.com/google/nixery/manifest"
+	log "github.com/sirupsen/logrus"
 	"golang.org/x/oauth2/google"
 )
 
diff --git a/tools/nixery/server/builder/cache.go b/tools/nixery/server/builder/cache.go
index b3b9dffab7d3..4a060ba5ea17 100644
--- a/tools/nixery/server/builder/cache.go
+++ b/tools/nixery/server/builder/cache.go
@@ -19,11 +19,11 @@ import (
 	"encoding/json"
 	"io"
 	"io/ioutil"
-	"log"
 	"os"
 	"sync"
 
 	"github.com/google/nixery/manifest"
+	log "github.com/sirupsen/logrus"
 )
 
 // LocalCache implements the structure used for local caching of
diff --git a/tools/nixery/server/config/config.go b/tools/nixery/server/config/config.go
index 84c2b89d13d0..abc067855a88 100644
--- a/tools/nixery/server/config/config.go
+++ b/tools/nixery/server/config/config.go
@@ -19,10 +19,10 @@ package config
 
 import (
 	"io/ioutil"
-	"log"
 	"os"
 
 	"cloud.google.com/go/storage"
+	log "github.com/sirupsen/logrus"
 )
 
 // Load (optional) GCS bucket signing data from the GCS_SIGNING_KEY and
diff --git a/tools/nixery/server/config/pkgsource.go b/tools/nixery/server/config/pkgsource.go
index 61bea33dfe62..98719ecceabb 100644
--- a/tools/nixery/server/config/pkgsource.go
+++ b/tools/nixery/server/config/pkgsource.go
@@ -17,10 +17,11 @@ import (
 	"crypto/sha1"
 	"encoding/json"
 	"fmt"
-	"log"
 	"os"
 	"regexp"
 	"strings"
+
+	log "github.com/sirupsen/logrus"
 )
 
 // PkgSource represents the source from which the Nix package set used
diff --git a/tools/nixery/server/go-deps.nix b/tools/nixery/server/go-deps.nix
index 7c40c6dde0f1..847b44dce63c 100644
--- a/tools/nixery/server/go-deps.nix
+++ b/tools/nixery/server/go-deps.nix
@@ -117,4 +117,13 @@
       sha256 = "1b7q6haabnp53igpmvr6a2414yralhbrldixx4kbxxg1apy8jdjg";
     };
   }
+  {
+    goPackagePath = "github.com/sirupsen/logrus";
+    fetch = {
+      type = "git";
+      url = "https://github.com/sirupsen/logrus";
+      rev = "de736cf91b921d56253b4010270681d33fdf7cb5";
+      sha256 = "1qixss8m5xy7pzbf0qz2k3shjw0asklm9sj6zyczp7mryrari0aj";
+    };
+  }
 ]
diff --git a/tools/nixery/server/layers/grouping.go b/tools/nixery/server/layers/grouping.go
index 9dbd5e88ce56..95198c90d4b3 100644
--- a/tools/nixery/server/layers/grouping.go
+++ b/tools/nixery/server/layers/grouping.go
@@ -105,11 +105,11 @@ package layers
 import (
 	"crypto/sha1"
 	"fmt"
-	"log"
 	"regexp"
 	"sort"
 	"strings"
 
+	log "github.com/sirupsen/logrus"
 	"gonum.org/v1/gonum/graph/flow"
 	"gonum.org/v1/gonum/graph/simple"
 )
diff --git a/tools/nixery/server/main.go b/tools/nixery/server/main.go
index b87af650650a..bad4c190c680 100644
--- a/tools/nixery/server/main.go
+++ b/tools/nixery/server/main.go
@@ -30,7 +30,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
-	"log"
 	"net/http"
 	"regexp"
 	"time"
@@ -39,6 +38,7 @@ import (
 	"github.com/google/nixery/builder"
 	"github.com/google/nixery/config"
 	"github.com/google/nixery/layers"
+	log "github.com/sirupsen/logrus"
 )
 
 // ManifestMediaType is the Content-Type used for the manifest itself. This