Post merge fixes, mostly stricter linter from 1.23

execution/gethexec/express_lane_service.go

@@ -21,6 +21,7 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/offchainlabs/nitro/solgen/go/express_lane_auctiongen"
 	"github.com/offchainlabs/nitro/timeboost"
+	"github.com/offchainlabs/nitro/util/arbmath"
 	"github.com/offchainlabs/nitro/util/stopwaiter"
 	"github.com/pkg/errors"
 )
@@ -70,9 +71,9 @@ pending:
 		}
 		return nil, err
 	}
-	initialTimestamp := time.Unix(int64(roundTimingInfo.OffsetTimestamp), 0)
-	roundDuration := time.Duration(roundTimingInfo.RoundDurationSeconds) * time.Second
-	auctionClosingDuration := time.Duration(roundTimingInfo.AuctionClosingSeconds) * time.Second
+	initialTimestamp := time.Unix(roundTimingInfo.OffsetTimestamp, 0)
+	roundDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.RoundDurationSeconds) * time.Second
+	auctionClosingDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.AuctionClosingSeconds) * time.Second
 	return &expressLaneService{
 		auctionContract:          auctionContract,
 		chainConfig:              chainConfig,

execution/gethexec/express_lane_service_test.go

@@ -350,20 +350,20 @@ func Test_expressLaneService_sequenceExpressLaneSubmission_erroredTx(t *testing.
 	}
 	messages := []*timeboost.ExpressLaneSubmission{
 		{
-			SequenceNumber:    1,
-			Transaction: &types.Transaction{},
+			SequenceNumber: 1,
+			Transaction:    &types.Transaction{},
 		},
 		{
-			SequenceNumber:    3,
-			Transaction: &types.Transaction{},
+			SequenceNumber: 3,
+			Transaction:    &types.Transaction{},
 		},
 		{
-			SequenceNumber:    2,
-			Transaction: nil,
+			SequenceNumber: 2,
+			Transaction:    nil,
 		},
 		{
-			SequenceNumber:    2,
-			Transaction: &types.Transaction{},
+			SequenceNumber: 2,
+			Transaction:    &types.Transaction{},
 		},
 	}
 	for _, msg := range messages {

go.mod

@@ -7,8 +7,8 @@ replace github.com/VictoriaMetrics/fastcache => ./fastcache
 replace github.com/ethereum/go-ethereum => ./go-ethereum
 
 require (
-	github.com/DATA-DOG/go-sqlmock v1.5.2
 	cloud.google.com/go/storage v1.43.0
+	github.com/DATA-DOG/go-sqlmock v1.5.2
 	github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible
 	github.com/Shopify/toxiproxy v2.1.4+incompatible
 	github.com/alicebob/miniredis/v2 v2.32.1
@@ -29,6 +29,7 @@ require (
 	github.com/gobwas/httphead v0.1.0
 	github.com/gobwas/ws v1.2.1
 	github.com/gobwas/ws-examples v0.0.0-20190625122829-a9e8908d9484
+	github.com/golang-jwt/jwt/v4 v4.5.0
 	github.com/google/btree v1.1.2
 	github.com/google/go-cmp v0.6.0
 	github.com/google/uuid v1.6.0
@@ -44,12 +45,12 @@ require (
 	github.com/redis/go-redis/v9 v9.6.1
 	github.com/rivo/tview v0.0.0-20240307173318-e804876934a1
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/testify v1.9.0
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	github.com/wealdtech/go-merkletree v1.0.0
 	golang.org/x/crypto v0.24.0
 	golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa
-	golang.org/x/sync v0.5.0
+	golang.org/x/sync v0.7.0
 	golang.org/x/sys v0.21.0
 	golang.org/x/term v0.21.0
 	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d
@@ -66,19 +67,28 @@ require (
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang/glog v1.2.0 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/google/s2a-go v0.1.7 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
 	github.com/googleapis/gax-go/v2 v2.12.5 // indirect
+	github.com/onsi/ginkgo v1.16.5 // indirect
+	github.com/onsi/gomega v1.18.1 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.49.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
 	go.opentelemetry.io/otel v1.24.0 // indirect
 	go.opentelemetry.io/otel/metric v1.24.0 // indirect
 	go.opentelemetry.io/otel/trace v1.24.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
 	google.golang.org/genproto v0.0.0-20240624140628-dc46fd24d27d // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20240617180043-68d350f18fd4 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240624140628-dc46fd24d27d // indirect
 	google.golang.org/grpc v1.64.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 require (

go.sum

@@ -294,6 +294,7 @@ github.com/go-sourcemap/sourcemap v2.1.3+incompatible/go.mod h1:F8jJfvm2KbVjc5Nq
 github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
 github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
 github.com/go-test/deep v1.0.2-0.20181118220953-042da051cf31/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
 github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
 github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
@@ -396,6 +397,7 @@ github.com/google/pprof v0.0.0-20200212024743-f11f1df84d12/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
+github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20230207041349-798e818bf904/go.mod h1:uglQLonpP8qtYCYyzA+8c/9qtqgA3qsXGYqCPKARAFg=
 github.com/google/pprof v0.0.0-20231023181126-ff6d637d2a7b h1:RMpPgZTSApbPf7xaVel+QkoGPRLFLrwFO89uDUHEGf0=
 github.com/google/pprof v0.0.0-20231023181126-ff6d637d2a7b/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
@@ -458,6 +460,7 @@ github.com/huin/goupnp v1.3.0 h1:UvLUlWDNpoUdYzb2TCn+MuTWtcjXKSza2n6CBdQ0xXc=
 github.com/huin/goupnp v1.3.0/go.mod h1:gnGPsThkYa7bFi/KWmEysQRf48l2dvR5bxr2OFckNX8=
 github.com/hydrogen18/memlistener v0.0.0-20200120041712-dcc25e7acd91/go.mod h1:qEIFzExnS6016fRpRfxrExeVn2gbClQA99gQhnIcdhE=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
+github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/ianlancetaylor/demangle v0.0.0-20220319035150-800ac71e25c2/go.mod h1:aYm2/VgdVmcIU8iMfdMvDMsRAQjcfZSKFby6HOFvi/w=
 github.com/imkira/go-interpol v1.1.0/go.mod h1:z0h2/2T3XF8kyEPpRgJ3kmNv+C43p+I/CoI+jC3w2iA=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
@@ -597,19 +600,25 @@ github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxzi
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/npillmayer/nestext v0.1.3/go.mod h1:h2lrijH8jpicr25dFY+oAJLyzlya6jhnuG+zWp9L0Uk=
-github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
+github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
+github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.10.3/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
-github.com/onsi/ginkgo v1.14.0 h1:2mOpI4JVVPBN+WQRa0WKH2eXR+Ey+uK4n7Zj0aYpIQA=
 github.com/onsi/ginkgo v1.14.0/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY=
+github.com/onsi/ginkgo v1.16.4/go.mod h1:dX+/inL/fNMqNlz0e9LfyB9TswhZpCVdJM/Z6Vvnwo0=
+github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
+github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
+github.com/onsi/ginkgo/v2 v2.0.0/go.mod h1:vw5CSIxN1JObi/U8gcbwft7ZxR2dgaR70JSE3/PpL4c=
 github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
-github.com/onsi/gomega v1.10.1 h1:o0+MgICZLuZ7xjH7Vx6zS/zcu93/BEp1VwkIW1mEXCE=
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
+github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
+github.com/onsi/gomega v1.18.1 h1:M1GfJqGRrBrrGGsbxzV5dqM2U2ApXefZCQpkukxYRLE=
+github.com/onsi/gomega v1.18.1/go.mod h1:0q+aL8jAiMXy9hbwj2mr5GziHiwhAIQpFmmtT5hitRs=
 github.com/opentracing/opentracing-go v1.1.0 h1:pWlfV3Bxv7k65HYwkikxat0+s3pV4bsqf19k25Ur8rU=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
 github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
@@ -868,6 +877,7 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211008194852-3b03d305991f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
@@ -949,6 +959,7 @@ golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1047,6 +1058,7 @@ golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roY
 golang.org/x/tools v0.0.0-20200729194436-6467de6f59a7/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
+golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
@@ -1056,7 +1068,6 @@ golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxb
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=

system_tests/timeboost_test.go

@@ -67,8 +67,8 @@ func TestSequencerFeed_ExpressLaneAuction_ExpressLaneTxsHaveAdvantage(t *testing
 	expressLaneClient := newExpressLaneClient(
 		bobPriv,
 		chainId,
-		time.Unix(int64(info.OffsetTimestamp), 0),
-		time.Duration(info.RoundDurationSeconds)*time.Second,
+		time.Unix(info.OffsetTimestamp, 0),
+		arbmath.SaturatingCast[time.Duration](info.RoundDurationSeconds)*time.Second,
 		auctionContractAddr,
 		seqDial,
 	)
@@ -158,7 +158,7 @@ func TestSequencerFeed_ExpressLaneAuction_InnerPayloadNoncesAreRespected(t *test
 		bobPriv,
 		chainId,
 		time.Unix(int64(info.OffsetTimestamp), 0),
-		time.Duration(info.RoundDurationSeconds)*time.Second,
+		arbmath.SaturatingCast[time.Duration](info.RoundDurationSeconds)*time.Second,
 		auctionContractAddr,
 		seqDial,
 	)
@@ -357,7 +357,7 @@ func setupExpressLaneAuction(
 			BiddingToken: biddingToken,
 			Beneficiary:  beneficiary,
 			RoundTimingInfo: express_lane_auctiongen.RoundTimingInfo{
-				OffsetTimestamp:          initialTimestamp.Uint64(),
+				OffsetTimestamp:          initialTimestamp.Int64(),
 				RoundDurationSeconds:     bidRoundSeconds,
 				AuctionClosingSeconds:    auctionClosingSeconds,
 				ReserveSubmissionSeconds: reserveSubmissionSeconds,

timeboost/auctioneer.go

@@ -24,6 +24,7 @@ import (
 	"github.com/offchainlabs/nitro/cmd/util"
 	"github.com/offchainlabs/nitro/pubsub"
 	"github.com/offchainlabs/nitro/solgen/go/express_lane_auctiongen"
+	"github.com/offchainlabs/nitro/util/arbmath"
 	"github.com/offchainlabs/nitro/util/redisutil"
 	"github.com/offchainlabs/nitro/util/stopwaiter"
 	"github.com/pkg/errors"
@@ -185,9 +186,9 @@ func NewAuctioneerServer(ctx context.Context, configFetcher AuctioneerServerConf
 	if err != nil {
 		return nil, err
 	}
-	auctionClosingDuration := time.Duration(roundTimingInfo.AuctionClosingSeconds) * time.Second
-	initialTimestamp := time.Unix(int64(roundTimingInfo.OffsetTimestamp), 0)
-	roundDuration := time.Duration(roundTimingInfo.RoundDurationSeconds) * time.Second
+	auctionClosingDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.AuctionClosingSeconds) * time.Second
+	initialTimestamp := time.Unix(roundTimingInfo.OffsetTimestamp, 0)
+	roundDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.RoundDurationSeconds) * time.Second
 	return &AuctioneerServer{
 		txOpts:                 txOpts,
 		sequencerRpc:           client,
@@ -364,7 +365,7 @@ func (a *AuctioneerServer) resolveAuction(ctx context.Context) error {
 	}
 
 	currentRound := CurrentRound(a.initialRoundTimestamp, a.roundDuration)
-	roundEndTime := a.initialRoundTimestamp.Add(time.Duration(currentRound) * a.roundDuration)
+	roundEndTime := a.initialRoundTimestamp.Add(arbmath.SaturatingCast[time.Duration](currentRound) * a.roundDuration)
 	retryInterval := 1 * time.Second
 
 	if err := retryUntil(ctx, func() error {

timeboost/bid_validator.go

@@ -14,12 +14,13 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/rpc"
-	"github.com/go-redis/redis/v8"
 	"github.com/offchainlabs/nitro/pubsub"
 	"github.com/offchainlabs/nitro/solgen/go/express_lane_auctiongen"
+	"github.com/offchainlabs/nitro/util/arbmath"
 	"github.com/offchainlabs/nitro/util/redisutil"
 	"github.com/offchainlabs/nitro/util/stopwaiter"
 	"github.com/pkg/errors"
+	"github.com/redis/go-redis/v9"
 	"github.com/spf13/pflag"
 )
 
@@ -113,9 +114,9 @@ func NewBidValidator(
 		return nil, err
 	}
 	initialTimestamp := time.Unix(int64(roundTimingInfo.OffsetTimestamp), 0)
-	roundDuration := time.Duration(roundTimingInfo.RoundDurationSeconds) * time.Second
-	auctionClosingDuration := time.Duration(roundTimingInfo.AuctionClosingSeconds) * time.Second
-	reserveSubmissionDuration := time.Duration(roundTimingInfo.ReserveSubmissionSeconds) * time.Second
+	roundDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.RoundDurationSeconds) * time.Second
+	auctionClosingDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.AuctionClosingSeconds) * time.Second
+	reserveSubmissionDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.ReserveSubmissionSeconds) * time.Second
 
 	reservePrice, err := auctionContract.ReservePrice(&bind.CallOpts{})
 	if err != nil {

timeboost/bidder_client.go

@@ -17,6 +17,7 @@ import (
 	"github.com/offchainlabs/nitro/cmd/util"
 	"github.com/offchainlabs/nitro/solgen/go/express_lane_auctiongen"
 	"github.com/offchainlabs/nitro/timeboost/bindings"
+	"github.com/offchainlabs/nitro/util/arbmath"
 	"github.com/offchainlabs/nitro/util/containers"
 	"github.com/offchainlabs/nitro/util/signature"
 	"github.com/offchainlabs/nitro/util/stopwaiter"
@@ -75,6 +76,7 @@ func NewBidderClient(
 	configFetcher BidderClientConfigFetcher,
 ) (*BidderClient, error) {
 	cfg := configFetcher()
+	_, _ = cfg.BidGwei, cfg.DepositGwei
 	if cfg.AuctionContractAddress == "" {
 		return nil, fmt.Errorf("auction contract address cannot be empty")
 	}
@@ -99,7 +101,7 @@ func NewBidderClient(
 		return nil, err
 	}
 	initialTimestamp := time.Unix(int64(roundTimingInfo.OffsetTimestamp), 0)
-	roundDuration := time.Duration(roundTimingInfo.RoundDurationSeconds) * time.Second
+	roundDuration := arbmath.SaturatingCast[time.Duration](roundTimingInfo.RoundDurationSeconds) * time.Second
 	txOpts, signer, err := util.OpenWallet("bidder-client", &cfg.Wallet, chainId)
 	if err != nil {
 		return nil, errors.Wrap(err, "opening wallet")

timeboost/setup_test.go

@@ -120,7 +120,7 @@ func setupAuctionTest(t testing.TB, ctx context.Context) *auctionSetup {
 			BiddingToken: biddingToken,
 			Beneficiary:  beneficiary,
 			RoundTimingInfo: express_lane_auctiongen.RoundTimingInfo{
-				OffsetTimestamp:          initialTimestamp.Uint64(),
+				OffsetTimestamp:          initialTimestamp.Int64(),
 				RoundDurationSeconds:     bidRoundSeconds,
 				AuctionClosingSeconds:    auctionClosingSeconds,
 				ReserveSubmissionSeconds: reserveSubmissionSeconds,

timeboost/ticker.go

@@ -2,6 +2,8 @@ package timeboost
 
 import (
 	"time"
+
+	"github.com/offchainlabs/nitro/util/arbmath"
 )
 
 type auctionCloseTicker struct {
@@ -50,7 +52,7 @@ func CurrentRound(initialRoundTimestamp time.Time, roundDuration time.Duration)
 	if roundDuration == 0 {
 		return 0
 	}
-	return uint64(time.Since(initialRoundTimestamp) / roundDuration)
+	return arbmath.SaturatingUCast[uint64](time.Since(initialRoundTimestamp) / roundDuration)
 }
 
 func isAuctionRoundClosed(
@@ -63,7 +65,7 @@ func isAuctionRoundClosed(
 		return false
 	}
 	timeInRound := timeIntoRound(timestamp, initialTimestamp, roundDuration)
-	return time.Duration(timeInRound)*time.Second >= roundDuration-auctionClosingDuration
+	return arbmath.SaturatingCast[time.Duration](timeInRound)*time.Second >= roundDuration-auctionClosingDuration
 }
 
 func timeIntoRound(