chore: Bump MSRV to 1.76

[larseggert]

Gecko did two days ago

[github-actions]

Failed Interop Tests

QUIC Interop Runner, client vs. server

• aioquic vs. neqo-latest: R A
• go-x-net vs. neqo-latest: U A
• kwik vs. neqo-latest: A
• lsquic vs. neqo-latest: R A
• msquic vs. neqo-latest: Z A
• mvfst vs. neqo-latest: Z 3 A L1 C1
• neqo vs. neqo-latest: A C1
• neqo-latest vs. aioquic: Z L1 C1
• neqo-latest vs. haproxy: Z
• neqo-latest vs. kwik: Z
• neqo-latest vs. lsquic: C1
• neqo-latest vs. msquic: Z A L1 C1
• neqo-latest vs. mvfst: DC U A L1 L2 C1 C2
• neqo-latest vs. neqo: A
• neqo-latest vs. neqo-latest: A
• neqo-latest vs. quic-go: Z
• neqo-latest vs. quiche: L1 C1
• neqo-latest vs. quinn: LR E A
• neqo-latest vs. s2n-quic: R
• neqo-latest vs. xquic: Z A C1
• ngtcp2 vs. neqo-latest: A
• picoquic vs. neqo-latest: R A
• quic-go vs. neqo-latest: A
• quiche vs. neqo-latest: R 3 A L1
• quinn vs. neqo-latest: R Z E A
• s2n-quic vs. neqo-latest: A
• xquic vs. neqo-latest: M A C1

Succeeded and unsupported tests

Succeeded Interop Tests

• aioquic vs. neqo-latest: H DC LR C20 M S Z 3 B L1 L2 C1 C2 6
• chrome vs. neqo-latest: 3
• go-x-net vs. neqo-latest: H DC LR M B L2 C2 6
• kwik vs. neqo-latest: H DC LR C20 M S R Z 3 B U L1 L2 C1 C2 6 V2
• lsquic vs. neqo-latest: H DC LR M S 3 B E L1 L2 C1 C2 6 V2
• msquic vs. neqo-latest: H DC LR C20 M S R B U L1 L2 C1 C2 6 V2
• mvfst vs. neqo-latest: H DC LR M B L2 C2 6
• neqo vs. neqo-latest: H DC LR C20 M S R Z 3 B U E L1 L2 C2 6 V2
• neqo-latest vs. aioquic: H DC LR C20 M S R 3 B U A L2 C2 6
• neqo-latest vs. go-x-net: H DC LR M B U A L2 C2 6
• neqo-latest vs. haproxy: H DC LR C20 M S R 3 B U A L1 L2 C1 C2 6 V2
• neqo-latest vs. kwik: H DC LR C20 M S R 3 B U A L1 L2 C1 C2 6 V2
• neqo-latest vs. lsquic: H DC LR C20 M S R Z 3 B U E A L1 L2 C2 6 V2
• neqo-latest vs. msquic: H DC LR C20 M S R B U L2 C2 6 V2
• neqo-latest vs. mvfst: H LR M R Z 3 B 6
• neqo-latest vs. neqo: H DC LR C20 M S R Z 3 B U E L1 L2 C1 C2 6 V2
• neqo-latest vs. neqo-latest: H DC LR C20 M S R Z 3 B U E L1 L2 C1 C2 6 V2
• neqo-latest vs. nginx: H DC LR C20 M S R Z 3 B U A L1 L2 C1 C2 6
• neqo-latest vs. ngtcp2: H DC LR C20 M S R Z 3 B U E A L1 L2 C1 C2 6 V2
• neqo-latest vs. picoquic: H DC LR C20 M S R Z 3 B U E A L1 L2 C1 C2 6 V2
• neqo-latest vs. quic-go: H DC LR C20 M S R 3 B U A L1 L2 C1 C2 6
• neqo-latest vs. quiche: H DC LR C20 M S R Z 3 B U A L2 C2 6
• neqo-latest vs. quinn: H DC C20 M S R Z 3 B U L2 C2 6
• neqo-latest vs. s2n-quic: H DC LR C20 M S 3 B U E A L1 L2 C1 C2 6
• neqo-latest vs. xquic: H DC LR C20 M R 3 B U L1 L2 C2 6
• ngtcp2 vs. neqo-latest: H DC LR C20 M S R Z 3 B U E L1 L2 C1 C2 6 V2
• picoquic vs. neqo-latest: H DC LR C20 M S Z 3 B U E L1 L2 C1 C2 6 V2
• quic-go vs. neqo-latest: H DC LR C20 M S R Z 3 B U L1 L2 C1 C2 6
• quiche vs. neqo-latest: H DC LR M S Z B L2 C1 C2 6
• quinn vs. neqo-latest: H DC LR C20 M S 3 B U L2 C2 6
• s2n-quic vs. neqo-latest: H DC LR M S R 3 B E L1 L2 C1 C2 6
• xquic vs. neqo-latest: H DC LR C20 S R Z 3 B U L1 L2 C2 6

Unsupported Interop Tests

• aioquic vs. neqo-latest: U E V2
• chrome vs. neqo-latest: H DC LR C20 M S R Z B U E A L1 L2 C1 C2 6 V2
• go-x-net vs. neqo-latest: C20 S R Z 3 E L1 C1 V2
• kwik vs. neqo-latest: E
• lsquic vs. neqo-latest: C20 Z U
• msquic vs. neqo-latest: 3 E
• mvfst vs. neqo-latest: C20 S R U E V2
• neqo-latest vs. aioquic: E V2
• neqo-latest vs. go-x-net: C20 S R Z 3 E L1 C1 V2
• neqo-latest vs. haproxy: E
• neqo-latest vs. kwik: E
• neqo-latest vs. msquic: 3 E
• neqo-latest vs. mvfst: C20 S E V2
• neqo-latest vs. nginx: E V2
• neqo-latest vs. quic-go: E V2
• neqo-latest vs. quiche: E V2
• neqo-latest vs. quinn: L1 C1 V2
• neqo-latest vs. s2n-quic: Z V2
• neqo-latest vs. xquic: S E V2
• quic-go vs. neqo-latest: E V2
• quiche vs. neqo-latest: C20 U E V2
• quinn vs. neqo-latest: L1 C1 V2
• s2n-quic vs. neqo-latest: C20 Z U V2
• xquic vs. neqo-latest: E V2

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.25%. Comparing base (14cafba) to head (79ab4d8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1865   +/-   ##
=======================================
  Coverage   93.25%   93.25%           
=======================================
  Files         110      110           
  Lines       35813    35813           
=======================================
  Hits        33397    33397           
  Misses       2416     2416           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

Benchmark results

Performance differences relative to 14cafba.

• drain a timer quickly time: [309.68 ns 318.29 ns 326.23 ns]
  change: [-2.4547% +0.2804% +2.8308%] (p = 0.84 > 0.05)
  No change in performance detected.

• coalesce_acked_from_zero 1+1 entries
  time: [193.61 ns 194.10 ns 194.62 ns]
  change: [-0.5604% +0.2308% +1.4770%] (p = 0.76 > 0.05)
  No change in performance detected.

• coalesce_acked_from_zero 3+1 entries
  time: [236.64 ns 237.26 ns 237.91 ns]
  change: [-1.3048% -0.4502% +0.1642%] (p = 0.28 > 0.05)
  No change in performance detected.

• coalesce_acked_from_zero 10+1 entries
  time: [235.47 ns 236.46 ns 237.55 ns]
  change: [-0.3866% +0.2021% +0.8071%] (p = 0.55 > 0.05)
  No change in performance detected.

• coalesce_acked_from_zero 1000+1 entries
  time: [218.08 ns 218.28 ns 218.51 ns]
  change: [-0.6015% +0.0398% +0.6588%] (p = 0.91 > 0.05)
  No change in performance detected.

• RxStreamOrderer::inbound_frame()
  time: [117.94 ms 118.03 ms 118.13 ms]
  change: [-0.7298% -0.6087% -0.4856%] (p = 0.00 < 0.05)
  Change within noise threshold.

• transfer/Run multiple transfers with varying seeds
  time: [117.25 ms 117.52 ms 117.78 ms]
  thrpt: [33.960 MiB/s 34.037 MiB/s 34.116 MiB/s]
  change:
  time: [-1.5654% -1.2414% -0.9162%] (p = 0.00 < 0.05)
  thrpt: [+0.9246% +1.2570% +1.5903%]
  Change within noise threshold.

• transfer/Run multiple transfers with the same seed
  time: [117.17 ms 117.42 ms 117.68 ms]
  thrpt: [33.991 MiB/s 34.065 MiB/s 34.139 MiB/s]
  change:
  time: [-1.8572% -1.5615% -1.2980%] (p = 0.00 < 0.05)
  thrpt: [+1.3151% +1.5863% +1.8923%]
  Change within noise threshold.

• 1-conn/1-100mb-resp (aka. Download)/client
  time: [1.0971 s 1.1103 s 1.1267 s]
  thrpt: [88.755 MiB/s 90.066 MiB/s 91.146 MiB/s]
  change:
  time: [-2.9777% -1.7630% -0.3536%] (p = 0.03 < 0.05)
  thrpt: [+0.3549% +1.7946% +3.0691%]
  Change within noise threshold.

• 1-conn/10_000-parallel-1b-resp (aka. RPS)/client
  time: [429.25 ms 431.31 ms 433.43 ms]
  thrpt: [23.072 Kelem/s 23.185 Kelem/s 23.296 Kelem/s]
  change:
  time: [+0.7389% +1.4714% +2.2256%] (p = 0.00 < 0.05)
  thrpt: [-2.1772% -1.4501% -0.7335%]
  Change within noise threshold.

• 1-conn/1-1b-resp (aka. HPS)/client
  time: [48.005 ms 48.437 ms 48.853 ms]
  thrpt: [20.470 elem/s 20.645 elem/s 20.831 elem/s]
  change:
  time: [-2.3662% -1.1673% -0.0156%] (p = 0.05 > 0.05)
  thrpt: [+0.0156% +1.1811% +2.4236%]
  No change in performance detected.

Client/server transfer results

Transfer of 134217728 bytes over loopback.

Client	Server	CC	Pacing	Mean [ms]	Min [ms]	Max [ms]	Relative
msquic	msquic			612.6 ± 247.1	408.1	1064.4	1.00
neqo	msquic	reno	on	1009.8 ± 294.6	767.7	1600.0	1.00
neqo	msquic	reno		873.5 ± 147.3	739.4	1116.2	1.00
neqo	msquic	cubic	on	909.4 ± 170.8	773.4	1290.9	1.00
neqo	msquic	cubic		833.9 ± 108.0	754.3	1128.9	1.00
msquic	neqo	reno	on	4336.9 ± 163.1	4125.2	4586.5	1.00
msquic	neqo	reno		4311.7 ± 259.1	4026.6	4926.0	1.00
msquic	neqo	cubic	on	4404.5 ± 197.4	4173.2	4784.8	1.00
msquic	neqo	cubic		4476.7 ± 250.4	4210.8	5050.5	1.00
neqo	neqo	reno	on	3350.3 ± 214.5	3022.5	3691.0	1.00
neqo	neqo	reno		3432.2 ± 172.6	3049.5	3619.1	1.00
neqo	neqo	cubic	on	4000.7 ± 552.5	2695.3	4754.9	1.00
neqo	neqo	cubic		4227.5 ± 329.1	3617.4	4926.4	1.00

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