chore: update nightly snapshots (#2733)

[ci-full]

This PR was automatically generated by the nightly CI run. Updated insta
snapshots for nightly Rust builds. Please review the snapshot changes to
ensure they are expected.

Co-authored-by: hydro-project-bot[bot] <132423234+hydro-project-bot[bot]@users.noreply.github.com>

Author: hydro-project-bot[bot]

dfir_rs/tests/compile-fail/surface_inline_cycle.stderr

@@ -1,5 +1,23 @@
-error: Cyclical dataflow within a tick is not supported in `dfir_syntax!`. Use `defer_tick()` or `defer_tick_lazy()` to break the cycle across ticks.
+error: Cyclical dataflow within a tick is not supported. Use `defer_tick()` or `defer_tick_lazy()` to break the cycle across ticks.
  --> tests/compile-fail/surface_inline_cycle.rs:3:9
   |
 3 |         source_iter(0..5_i32) -> my_union;
-  |         ^^^^^^^^^^^
+  |         ^^^^^^^^^^^^^^^^^^^^^
+
+warning: variable does not need to be mutable
+ --> tests/compile-fail/surface_inline_cycle.rs:2:9
+  |
+2 |     let mut flow = dfir_rs::dfir_syntax! {
+  |         ----^^^^
+  |         |
+  |         help: remove this `mut`
+  |
+  = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
+
+warning: unused variable: `flow`
+ --> tests/compile-fail/surface_inline_cycle.rs:2:9
+  |
+2 |     let mut flow = dfir_rs::dfir_syntax! {
+  |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_flow`
+  |
+  = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

dfir_rs/tests/compile-fail/surface_inline_loop.stderr

@@ -2,4 +2,28 @@ error: `loop { }` blocks are not (yet) supported in `dfir_syntax!`.
  --> tests/compile-fail/surface_inline_loop.rs:6:18
   |
 6 |             x -> batch() -> for_each(|_x: i32| {});
-  |                  ^^^^^
+  |                  ^^^^^^^
+
+warning: variable does not need to be mutable
+ --> tests/compile-fail/surface_inline_loop.rs:3:9
+  |
+3 |     let mut flow = dfir_rs::dfir_syntax! {
+  |         ----^^^^
+  |         |
+  |         help: remove this `mut`
+  |
+  = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
+
+warning: unused variable: `recv`
+ --> tests/compile-fail/surface_inline_loop.rs:2:17
+  |
+2 |     let (_send, recv) = dfir_rs::util::unbounded_channel::<i32>();
+  |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_recv`
+  |
+  = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
+
+warning: unused variable: `flow`
+ --> tests/compile-fail/surface_inline_loop.rs:3:9
+  |
+3 |     let mut flow = dfir_rs::dfir_syntax! {
+  |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_flow`

dfir_rs/tests/compile-fail/surface_negative_loop.stderr

@@ -1,5 +1,5 @@
-error: Negative edge creates a negative cycle which must be broken with a `defer_tick()` operator.
- --> tests/compile-fail/surface_negative_loop.rs:7:18
+error: Cyclical dataflow within a tick is not supported. Use `defer_tick()` or `defer_tick_lazy()` to break the cycle across ticks.
+ --> tests/compile-fail/surface_negative_loop.rs:6:9
   |
-7 |         diff -> [neg]diff;
-  |                  ^^^
+6 |         source_iter([1]) -> [pos]diff;
+  |         ^^^^^^^^^^^^^^^^

dfir_rs/tests/snapshots-nightly/surface_async__echo@graphvis_dot.snap

@@ -12,7 +12,7 @@ digraph {
         cluster=true
         fillcolor="#dddddd"
         style=filled
-        label = "sg_1v1\nstratum 0"
+        label = "sg_1v1"
         n1v1
         n2v1
     }

dfir_rs/tests/snapshots-nightly/surface_async__echo@graphvis_mermaid.snap

@@ -11,7 +11,7 @@ linkStyle default stroke:#aaa
 1v1[\"(1v1) <code>source_stream(lines_recv)</code>"/]:::pullClass
 2v1[/"(2v1) <code>dest_sink(stdout_lines)</code>"\]:::pushClass
 1v1-->2v1
-subgraph sg_1v1 ["sg_1v1 stratum 0"]
+subgraph sg_1v1 ["sg_1v1"]
     1v1
     2v1
 end

dfir_rs/tests/snapshots-nightly/surface_book__surface_flows_1@graphvis_dot.snap

@@ -25,7 +25,7 @@ digraph {
         cluster=true
         fillcolor="#dddddd"
         style=filled
-        label = "sg_1v1\nstratum 0"
+        label = "sg_1v1"
         subgraph sg_1v1_var_my_tee {
             cluster=true
             label="var my_tee"
@@ -37,7 +37,7 @@ digraph {
         cluster=true
         fillcolor="#dddddd"
         style=filled
-        label = "sg_2v1\nstratum 0"
+        label = "sg_2v1"
         n3v1
         n4v1
         subgraph sg_2v1_var_my_union {

dfir_rs/tests/snapshots-nightly/surface_book__surface_flows_1@graphvis_mermaid.snap

@@ -24,13 +24,13 @@ linkStyle default stroke:#aaa
 5v1-->6v1
 7v1-->3v1
 8v1-->4v1
-subgraph sg_1v1 ["sg_1v1 stratum 0"]
+subgraph sg_1v1 ["sg_1v1"]
     subgraph sg_1v1_var_my_tee ["var <tt>my_tee</tt>"]
         1v1
         2v1
     end
 end
-subgraph sg_2v1 ["sg_2v1 stratum 0"]
+subgraph sg_2v1 ["sg_2v1"]
     3v1
     4v1
     subgraph sg_2v1_var_my_union ["var <tt>my_union</tt>"]

dfir_rs/tests/snapshots-nightly/surface_codegen__basic_2@graphvis_dot.snap

@@ -12,7 +12,7 @@ digraph {
         cluster=true
         fillcolor="#dddddd"
         style=filled
-        label = "sg_1v1\nstratum 0"
+        label = "sg_1v1"
         n1v1
         n2v1
     }

dfir_rs/tests/snapshots-nightly/surface_codegen__basic_2@graphvis_mermaid.snap

@@ -11,7 +11,7 @@ linkStyle default stroke:#aaa
 1v1[\"(1v1) <code>source_iter([1])</code>"/]:::pullClass
 2v1[/"(2v1) <code>for_each(|v| out_send.send(v).unwrap())</code>"\]:::pushClass
 1v1-->2v1
-subgraph sg_1v1 ["sg_1v1 stratum 0"]
+subgraph sg_1v1 ["sg_1v1"]
     1v1
     2v1
 end

dfir_rs/tests/snapshots-nightly/surface_codegen__basic_3@graphvis_dot.snap

@@ -14,7 +14,7 @@ digraph {
         cluster=true
         fillcolor="#dddddd"
         style=filled
-        label = "sg_1v1\nstratum 0"
+        label = "sg_1v1"
         n1v1
         n2v1
         n3v1