[INFO] fetching crate rose-graph 0.1.0...
[INFO] checking rose-graph-0.1.0 against master#1280928a99ad3ef2c5735b42dc8852456ae3b974 for pr-120798
[INFO] extracting crate rose-graph 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rose-graph 0.1.0 on toolchain 1280928a99ad3ef2c5735b42dc8852456ae3b974
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rose-graph 0.1.0
[INFO] finished tweaking crates.io crate rose-graph 0.1.0
[INFO] tweaked toml for crates.io crate rose-graph 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24e31b6b44897526cd84baa83e55feea967c02a072481e35c239e339c5af0332
[INFO] running `Command { std: "docker" "start" "-a" "24e31b6b44897526cd84baa83e55feea967c02a072481e35c239e339c5af0332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24e31b6b44897526cd84baa83e55feea967c02a072481e35c239e339c5af0332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e31b6b44897526cd84baa83e55feea967c02a072481e35c239e339c5af0332", kill_on_drop: false }`
[INFO] [stdout] 24e31b6b44897526cd84baa83e55feea967c02a072481e35c239e339c5af0332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b716940f817bdafe6e76cd9c4ddcb1e0c24651cd5308cc75a81b79ded98a7c2
[INFO] running `Command { std: "docker" "start" "-a" "8b716940f817bdafe6e76cd9c4ddcb1e0c24651cd5308cc75a81b79ded98a7c2", kill_on_drop: false }`
[INFO] [stderr]     Checking rose-graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "8b716940f817bdafe6e76cd9c4ddcb1e0c24651cd5308cc75a81b79ded98a7c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b716940f817bdafe6e76cd9c4ddcb1e0c24651cd5308cc75a81b79ded98a7c2", kill_on_drop: false }`
[INFO] [stdout] 8b716940f817bdafe6e76cd9c4ddcb1e0c24651cd5308cc75a81b79ded98a7c2
[INFO] checking rose-graph-0.1.0 against try#9b9e20bc79549d80ab413f49d990713851172cc1 for pr-120798
[INFO] extracting crate rose-graph 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate rose-graph 0.1.0 on toolchain 9b9e20bc79549d80ab413f49d990713851172cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rose-graph 0.1.0
[INFO] finished tweaking crates.io crate rose-graph 0.1.0
[INFO] tweaked toml for crates.io crate rose-graph 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6a370974850cf5a174381ea6391ef4f5879f4e657a9b15ec50393aa2e6fd77f
[INFO] running `Command { std: "docker" "start" "-a" "f6a370974850cf5a174381ea6391ef4f5879f4e657a9b15ec50393aa2e6fd77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6a370974850cf5a174381ea6391ef4f5879f4e657a9b15ec50393aa2e6fd77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a370974850cf5a174381ea6391ef4f5879f4e657a9b15ec50393aa2e6fd77f", kill_on_drop: false }`
[INFO] [stdout] f6a370974850cf5a174381ea6391ef4f5879f4e657a9b15ec50393aa2e6fd77f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 773b6e91dd8ee8fdb1cac09200d2e52bbcca314f169a8c4c269aed9afa8f5b09
[INFO] running `Command { std: "docker" "start" "-a" "773b6e91dd8ee8fdb1cac09200d2e52bbcca314f169a8c4c269aed9afa8f5b09", kill_on_drop: false }`
[INFO] [stderr]     Checking rose-graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:476:50
[INFO] [stdout]     |
[INFO] [stdout] 476 |                         UiTreeItem::Folder(f) => Box::new(f.iter_paths(path)),
[INFO] [stdout]     |                                                  ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 476 |                         UiTreeItem::Folder(f) => Box::<T>::new(f.iter_paths(path)),
[INFO] [stdout]     |                                                     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:476:50
[INFO] [stdout]     |
[INFO] [stdout] 476 |                         UiTreeItem::Folder(f) => Box::new(f.iter_paths(path)),
[INFO] [stdout]     |                                                  ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 476 |                         UiTreeItem::Folder(f) => Box::<T>::new(f.iter_paths(path)),
[INFO] [stdout]     |                                                     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:457:46
[INFO] [stdout]     |
[INFO] [stdout] 457 |                     UiTreeItem::Folder(f) => Box::new(f.iter()),
[INFO] [stdout]     |                                              ^^^^^^^^   ---- type must be known at this point
[INFO] [stdout]     |                                              |
[INFO] [stdout]     |                                              cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 457 |                     UiTreeItem::Folder(f) => Box::<T>::new(f.iter()),
[INFO] [stdout]     |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:457:46
[INFO] [stdout]     |
[INFO] [stdout] 457 |                     UiTreeItem::Folder(f) => Box::new(f.iter()),
[INFO] [stdout]     |                                              ^^^^^^^^   ---- type must be known at this point
[INFO] [stdout]     |                                              |
[INFO] [stdout]     |                                              cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 457 |                     UiTreeItem::Folder(f) => Box::<T>::new(f.iter()),
[INFO] [stdout]     |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:402:42
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 UiTreeItem::Folder(f) => Box::new(f.files()),
[INFO] [stdout]     |                                          ^^^^^^^^   ----- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files()),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:402:42
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 UiTreeItem::Folder(f) => Box::new(f.files()),
[INFO] [stdout]     |                                          ^^^^^^^^   ----- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files()),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:413:42
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 UiTreeItem::Folder(f) => Box::new(f.files_mut()),
[INFO] [stdout]     |                                          ^^^^^^^^   --------- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files_mut()),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:413:42
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 UiTreeItem::Folder(f) => Box::new(f.files_mut()),
[INFO] [stdout]     |                                          ^^^^^^^^   --------- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files_mut()),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:425:42
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths(path)),
[INFO] [stdout]     |                                          ^^^^^^^^   ----------- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files_paths(path)),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:425:42
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths(path)),
[INFO] [stdout]     |                                          ^^^^^^^^   ----------- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files_paths(path)),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:440:42
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths_mut(path)),
[INFO] [stdout]     |                                          ^^^^^^^^   --------------- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files_paths_mut(path)),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:440:42
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths_mut(path)),
[INFO] [stdout]     |                                          ^^^^^^^^   --------------- type must be known at this point
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Iterator`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 UiTreeItem::Folder(f) => Box::<T>::new(f.files_paths_mut(path)),
[INFO] [stdout]     |                                             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:469:66
[INFO] [stdout]     |
[INFO] [stdout] 469 |       ) -> impl Iterator<Item = (String, UiTreeItemRef<'_, T, F>)> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout] 470 | |         iter::once((base.clone(), UiTreeItemRef::Folder(self))).chain(
[INFO] [stdout] 471 | |             self.children.iter().flat_map(move |(subpath, item)| {
[INFO] [stdout] 472 | |                 let path = tree_utils::join(&base, subpath);
[INFO] [stdout] ...   |
[INFO] [stdout] 482 | |         )
[INFO] [stdout] 483 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `std::iter::Chain<std::iter::Once<(std::string::String, UiTreeItemRef<'_, T, F>)>, FlatMap<std::collections::btree_map::Iter<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = (std::string::String, UiTreeItemRef<'_, T, F>)>>, {closure@src/lib.rs:471:43: 471:65}>>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:476:61
[INFO] [stdout]     |
[INFO] [stdout] 476 |                         UiTreeItem::Folder(f) => Box::new(f.iter_paths(path)),
[INFO] [stdout]     |                                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:453:73
[INFO] [stdout]     |
[INFO] [stdout] 453 |       pub fn iter(&self) -> impl Iterator<Item = UiTreeItemRef<'_, T, F>> {
[INFO] [stdout]     |  _________________________________________________________________________^
[INFO] [stdout] 454 | |         iter::once(UiTreeItemRef::Folder(self)).chain(self.children.iter().flat_map(
[INFO] [stdout] 455 | |             move |(_subpath, item)| {
[INFO] [stdout] 456 | |                 let x: Box<dyn Iterator<Item = UiTreeItemRef<'_, T, F>>> = match item.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 463 | |         ))
[INFO] [stdout] 464 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `std::iter::Chain<std::iter::Once<UiTreeItemRef<'_, T, F>>, FlatMap<std::collections::btree_map::Iter<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = UiTreeItemRef<'_, T, F>>>, {closure@src/lib.rs:455:13: 455:36}>>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:457:57
[INFO] [stdout]     |
[INFO] [stdout] 457 |                     UiTreeItem::Folder(f) => Box::new(f.iter()),
[INFO] [stdout]     |                                                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:399:56
[INFO] [stdout]     |
[INFO] [stdout] 399 |       pub fn files(&self) -> impl Iterator<Item = &'_ T> {
[INFO] [stdout]     |  ________________________________________________________^
[INFO] [stdout] 400 | |         self.children.values().flat_map(|n| {
[INFO] [stdout] 401 | |             let x: Box<dyn Iterator<Item = &T>> = match n.as_ref() {
[INFO] [stdout] 402 | |                 UiTreeItem::Folder(f) => Box::new(f.files()),
[INFO] [stdout] ...   |
[INFO] [stdout] 407 | |         })
[INFO] [stdout] 408 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::Values<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = &T>>, {closure@src/lib.rs:400:41: 400:44}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:402:53
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 UiTreeItem::Folder(f) => Box::new(f.files()),
[INFO] [stdout]     |                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:410:68
[INFO] [stdout]     |
[INFO] [stdout] 410 |       pub fn files_mut(&mut self) -> impl Iterator<Item = &'_ mut T> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 411 | |         self.children.values_mut().flat_map(|n| {
[INFO] [stdout] 412 | |             let x: Box<dyn Iterator<Item = &mut T>> = match n.as_mut() {
[INFO] [stdout] 413 | |                 UiTreeItem::Folder(f) => Box::new(f.files_mut()),
[INFO] [stdout] ...   |
[INFO] [stdout] 418 | |         })
[INFO] [stdout] 419 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::ValuesMut<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = &mut T>>, {closure@src/lib.rs:411:45: 411:48}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:413:53
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 UiTreeItem::Folder(f) => Box::new(f.files_mut()),
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:421:91
[INFO] [stdout]     |
[INFO] [stdout] 421 |       pub fn files_paths(&self, base_path: String) -> impl Iterator<Item = (String, &'_ T)> {
[INFO] [stdout]     |  ___________________________________________________________________________________________^
[INFO] [stdout] 422 | |         self.children.iter().flat_map(move |(subpath, n)| {
[INFO] [stdout] 423 | |             let path = tree_utils::join(&base_path, subpath);
[INFO] [stdout] 424 | |             let x: Box<dyn Iterator<Item = (String, &T)>> = match n.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 430 | |         })
[INFO] [stdout] 431 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::Iter<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = (std::string::String, &T)>>, {closure@src/lib.rs:422:39: 422:58}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:425:53
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths(path)),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:436:52
[INFO] [stdout]     |
[INFO] [stdout] 436 |       ) -> impl Iterator<Item = (String, &'_ mut T)> {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 437 | |         self.children.iter_mut().flat_map(move |(subpath, n)| {
[INFO] [stdout] 438 | |             let path = tree_utils::join(&base_path, subpath);
[INFO] [stdout] 439 | |             let x: Box<dyn Iterator<Item = (String, &mut T)>> = match n.as_mut() {
[INFO] [stdout] ...   |
[INFO] [stdout] 445 | |         })
[INFO] [stdout] 446 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::IterMut<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = (std::string::String, &mut T)>>, {closure@src/lib.rs:437:43: 437:62}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:440:53
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths_mut(path)),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rose-graph` (lib) due to 13 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:469:66
[INFO] [stdout]     |
[INFO] [stdout] 469 |       ) -> impl Iterator<Item = (String, UiTreeItemRef<'_, T, F>)> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout] 470 | |         iter::once((base.clone(), UiTreeItemRef::Folder(self))).chain(
[INFO] [stdout] 471 | |             self.children.iter().flat_map(move |(subpath, item)| {
[INFO] [stdout] 472 | |                 let path = tree_utils::join(&base, subpath);
[INFO] [stdout] ...   |
[INFO] [stdout] 482 | |         )
[INFO] [stdout] 483 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `std::iter::Chain<std::iter::Once<(std::string::String, UiTreeItemRef<'_, T, F>)>, FlatMap<std::collections::btree_map::Iter<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = (std::string::String, UiTreeItemRef<'_, T, F>)>>, {closure@src/lib.rs:471:43: 471:65}>>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:476:61
[INFO] [stdout]     |
[INFO] [stdout] 476 |                         UiTreeItem::Folder(f) => Box::new(f.iter_paths(path)),
[INFO] [stdout]     |                                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:453:73
[INFO] [stdout]     |
[INFO] [stdout] 453 |       pub fn iter(&self) -> impl Iterator<Item = UiTreeItemRef<'_, T, F>> {
[INFO] [stdout]     |  _________________________________________________________________________^
[INFO] [stdout] 454 | |         iter::once(UiTreeItemRef::Folder(self)).chain(self.children.iter().flat_map(
[INFO] [stdout] 455 | |             move |(_subpath, item)| {
[INFO] [stdout] 456 | |                 let x: Box<dyn Iterator<Item = UiTreeItemRef<'_, T, F>>> = match item.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 463 | |         ))
[INFO] [stdout] 464 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `std::iter::Chain<std::iter::Once<UiTreeItemRef<'_, T, F>>, FlatMap<std::collections::btree_map::Iter<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = UiTreeItemRef<'_, T, F>>>, {closure@src/lib.rs:455:13: 455:36}>>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:457:57
[INFO] [stdout]     |
[INFO] [stdout] 457 |                     UiTreeItem::Folder(f) => Box::new(f.iter()),
[INFO] [stdout]     |                                                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:399:56
[INFO] [stdout]     |
[INFO] [stdout] 399 |       pub fn files(&self) -> impl Iterator<Item = &'_ T> {
[INFO] [stdout]     |  ________________________________________________________^
[INFO] [stdout] 400 | |         self.children.values().flat_map(|n| {
[INFO] [stdout] 401 | |             let x: Box<dyn Iterator<Item = &T>> = match n.as_ref() {
[INFO] [stdout] 402 | |                 UiTreeItem::Folder(f) => Box::new(f.files()),
[INFO] [stdout] ...   |
[INFO] [stdout] 407 | |         })
[INFO] [stdout] 408 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::Values<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = &T>>, {closure@src/lib.rs:400:41: 400:44}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:402:53
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 UiTreeItem::Folder(f) => Box::new(f.files()),
[INFO] [stdout]     |                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:410:68
[INFO] [stdout]     |
[INFO] [stdout] 410 |       pub fn files_mut(&mut self) -> impl Iterator<Item = &'_ mut T> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 411 | |         self.children.values_mut().flat_map(|n| {
[INFO] [stdout] 412 | |             let x: Box<dyn Iterator<Item = &mut T>> = match n.as_mut() {
[INFO] [stdout] 413 | |                 UiTreeItem::Folder(f) => Box::new(f.files_mut()),
[INFO] [stdout] ...   |
[INFO] [stdout] 418 | |         })
[INFO] [stdout] 419 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::ValuesMut<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = &mut T>>, {closure@src/lib.rs:411:45: 411:48}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:413:53
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 UiTreeItem::Folder(f) => Box::new(f.files_mut()),
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:421:91
[INFO] [stdout]     |
[INFO] [stdout] 421 |       pub fn files_paths(&self, base_path: String) -> impl Iterator<Item = (String, &'_ T)> {
[INFO] [stdout]     |  ___________________________________________________________________________________________^
[INFO] [stdout] 422 | |         self.children.iter().flat_map(move |(subpath, n)| {
[INFO] [stdout] 423 | |             let path = tree_utils::join(&base_path, subpath);
[INFO] [stdout] 424 | |             let x: Box<dyn Iterator<Item = (String, &T)>> = match n.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 430 | |         })
[INFO] [stdout] 431 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::Iter<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = (std::string::String, &T)>>, {closure@src/lib.rs:422:39: 422:58}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:425:53
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths(path)),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:436:52
[INFO] [stdout]     |
[INFO] [stdout] 436 |       ) -> impl Iterator<Item = (String, &'_ mut T)> {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 437 | |         self.children.iter_mut().flat_map(move |(subpath, n)| {
[INFO] [stdout] 438 | |             let path = tree_utils::join(&base_path, subpath);
[INFO] [stdout] 439 | |             let x: Box<dyn Iterator<Item = (String, &mut T)>> = match n.as_mut() {
[INFO] [stdout] ...   |
[INFO] [stdout] 445 | |         })
[INFO] [stdout] 446 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `FlatMap<std::collections::btree_map::IterMut<'_, std::string::String, Box<UiTreeItem<T, F>>>, Box<dyn Iterator<Item = (std::string::String, &mut T)>>, {closure@src/lib.rs:437:43: 437:62}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:440:53
[INFO] [stdout]     |
[INFO] [stdout] 440 |                 UiTreeItem::Folder(f) => Box::new(f.files_paths_mut(path)),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rose-graph` (lib test) due to 13 previous errors
[INFO] running `Command { std: "docker" "inspect" "773b6e91dd8ee8fdb1cac09200d2e52bbcca314f169a8c4c269aed9afa8f5b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "773b6e91dd8ee8fdb1cac09200d2e52bbcca314f169a8c4c269aed9afa8f5b09", kill_on_drop: false }`
[INFO] [stdout] 773b6e91dd8ee8fdb1cac09200d2e52bbcca314f169a8c4c269aed9afa8f5b09