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[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(result_option_map_or_default, box_patterns, import_trait_associated_functions, exit_status_error)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(result_option_map_or_default, box_patterns, import_trait_associated_functions, exit_status_error)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1054:60
[INFO] [stdout]      |
[INFO] [stdout] 1054 |     let mut lines = std::mem::take(&mut cache.lines_cache).recycle();
[INFO] [stdout]      |                                                            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout]      = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1055:71
[INFO] [stdout]      |
[INFO] [stdout] 1055 |     lines.extend(cache.spans_caches.drain(..).map(|v| Line { spans: v.recycle(), ..Default::default() }));
[INFO] [stdout]      |                                                                       ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1054:60
[INFO] [stdout]      |
[INFO] [stdout] 1054 |     let mut lines = std::mem::take(&mut cache.lines_cache).recycle();
[INFO] [stdout]      |                                                            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout]      = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1055:71
[INFO] [stdout]      |
[INFO] [stdout] 1055 |     lines.extend(cache.spans_caches.drain(..).map(|v| Line { spans: v.recycle(), ..Default::default() }));
[INFO] [stdout]      |                                                                       ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1063:96
[INFO] [stdout]      |
[INFO] [stdout] 1063 |     cache.spans_caches.extend(text.lines.iter_mut().map(|line| std::mem::take(&mut line.spans).recycle()));
[INFO] [stdout]      |                                                                                                ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1064:36
[INFO] [stdout]      |
[INFO] [stdout] 1064 |     cache.lines_cache = text.lines.recycle();
[INFO] [stdout]      |                                    ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1063:96
[INFO] [stdout]      |
[INFO] [stdout] 1063 |     cache.spans_caches.extend(text.lines.iter_mut().map(|line| std::mem::take(&mut line.spans).recycle()));
[INFO] [stdout]      |                                                                                                ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1064:36
[INFO] [stdout]      |
[INFO] [stdout] 1064 |     cache.lines_cache = text.lines.recycle();
[INFO] [stdout]      |                                    ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `recycle(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:4784
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : rest_commands , state }) } pub...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:4784
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : rest_commands , state }) } pub...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:7773
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:7773
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:17710
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:17710
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:20496
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:20496
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:22414
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `iterations` is never read
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/pipec-9a6fc1dd8d80980d/out/pipeline_ebnf.rs:6:22414
[INFO] [stdout]   |
[INFO] [stdout] 6 | ...r) => { state = state . record_error (err) ; break ; } } iterations += 1 ; } Ok (ParseOk { result : () , state }) } pub type Parse...
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pipec` (bin "pipec") due to 1 previous error; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `pipec` (bin "pipec" test) due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ca53e84eaaf065349b3225412f5ae65114c706d0c8e2a856983cb193146ade67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca53e84eaaf065349b3225412f5ae65114c706d0c8e2a856983cb193146ade67", kill_on_drop: false }`
[INFO] [stdout] ca53e84eaaf065349b3225412f5ae65114c706d0c8e2a856983cb193146ade67
