diff --git a/go.sum b/go.sum
index f116318..0ccf707 100644
--- a/go.sum
+++ b/go.sum
@@ -138,6 +138,8 @@
 github.com/aws/aws-sdk-go v1.29.14/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
 github.com/aws/aws-sdk-go v1.29.15 h1:0ms/213murpsujhsnxnNKNeVouW60aJqSd992Ks3mxs=
 github.com/aws/aws-sdk-go v1.29.15/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
+github.com/aws/aws-sdk-go v1.29.16 h1:Gbtod7Y4W/Ai7wPtesdvgGVTkFN8JxAaGouRLlcQfQs=
+github.com/aws/aws-sdk-go v1.29.16/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@@ -705,6 +707,8 @@
 go.chromium.org/luci v0.0.0-20200302135924-7da84cbd78a2/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.chromium.org/luci v0.0.0-20200304031504-394923153cce h1:x1whj/XIMP5zso8wMPm8qvSnUCDbGziQKAg/6BIkZ0I=
 go.chromium.org/luci v0.0.0-20200304031504-394923153cce/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
+go.chromium.org/luci v0.0.0-20200305023749-850cd1777619 h1:Cn3R1cooYRO70+7/DVewXA85d3gUr0kauIBMB5JKrxE=
+go.chromium.org/luci v0.0.0-20200305023749-850cd1777619/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.mongodb.org/mongo-driver v1.1.0/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
@@ -763,6 +767,8 @@
 go.skia.org/infra v0.0.0-20200302224149-d77f800809f0/go.mod h1:+7VADOAo2M20FUYdGF2utK5Yz40VdPRDLgJxoOTOtp0=
 go.skia.org/infra v0.0.0-20200303171800-bc9b69cde77b h1:3RfNvUoa9K+18R5saG8izKNrGauEAHWH9KoN+D2krv0=
 go.skia.org/infra v0.0.0-20200303171800-bc9b69cde77b/go.mod h1:dNTLvmC/Yrj2a1+UzgLg+Oabe2KiVkSfWrz3pIWuzlY=
+go.skia.org/infra v0.0.0-20200304212802-e79935bf89ea h1:8Exy1MrsBPzCovykJTjvwlq6FiQkMjOKPiHQ5e94Yw8=
+go.skia.org/infra v0.0.0-20200304212802-e79935bf89ea/go.mod h1:Wb/idwx4EKdrAacSUEgGx7sfgfWnsz+u5Xe0glbJKAI=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
@@ -1051,6 +1057,8 @@
 golang.org/x/tools v0.0.0-20200302225559-9b52d559c609/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200304024140-c4206d458c3f h1:haxFuLhmPh0vRpVv5MeXoGyfCB39/Ohsq7A68h65qAg=
 golang.org/x/tools v0.0.0-20200304024140-c4206d458c3f/go.mod h1:o4KQGtdN14AW+yjsvvwRTJJuXz8XRtIHtEnmAXLyFUw=
+golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb h1:iKlO7ROJc6SttHKlxzwGytRtBUqX4VARrNTgP2YLX5M=
+golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb/go.mod h1:o4KQGtdN14AW+yjsvvwRTJJuXz8XRtIHtEnmAXLyFUw=
 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 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
@@ -1143,6 +1151,8 @@
 google.golang.org/genproto v0.0.0-20200302123026-7795fca6ccb1/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200303153909-beee998c1893 h1:OTjq5CN+5TpMIvzqxSFCjbBX3jNKjX0XOPi4SdBxQU8=
 google.golang.org/genproto v0.0.0-20200303153909-beee998c1893/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200304201815-d429ff31ee6c h1:Mm69MraVZ+yh1vw8pQOUW4uJkkSEQbbTr076A94lvqs=
+google.golang.org/genproto v0.0.0-20200304201815-d429ff31ee6c/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1 h1:Hz2g2wirWK7H0qIIhGIqRGTuMwTE8HEKFnDZZ7lm9NU=