File: cyclic-trait-resolution.stderr

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid, trixie, trixie-backports, trixie-proposed-updates
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (31 lines) | stat: -rw-r--r-- 1,261 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
error[E0391]: cycle detected when computing the super predicates of `A`
  --> $DIR/cyclic-trait-resolution.rs:1:14
   |
LL | trait A: B + A {}
   |              ^
   |
   = note: ...which immediately requires computing the super predicates of `A` again
note: cycle used when checking that `A` is well-formed
  --> $DIR/cyclic-trait-resolution.rs:1:1
   |
LL | trait A: B + A {}
   | ^^^^^^^^^^^^^^^^^
   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information

error[E0391]: cycle detected when computing the implied predicates of `A`
  --> $DIR/cyclic-trait-resolution.rs:1:14
   |
LL | trait A: B + A {}
   |              ^
   |
   = note: ...which immediately requires computing the implied predicates of `A` again
note: cycle used when checking that `<impl at $DIR/cyclic-trait-resolution.rs:7:1: 7:14>` is well-formed
  --> $DIR/cyclic-trait-resolution.rs:7:1
   |
LL | impl A for () {}
   | ^^^^^^^^^^^^^
   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0391`.