[INFO] fetching crate prty_bitgraph 0.1.1...
[INFO] checking prty_bitgraph-0.1.1 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate prty_bitgraph 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate prty_bitgraph 0.1.1 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prty_bitgraph 0.1.1
[INFO] finished tweaking crates.io crate prty_bitgraph 0.1.1
[INFO] tweaked toml for crates.io crate prty_bitgraph 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prty_fmtmodifier v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93bd59d36ddd37b8dd7a23c09d83832bdd77ee8e6ba2a3d03ff8b08925475806
[INFO] running `Command { std: "docker" "start" "-a" "93bd59d36ddd37b8dd7a23c09d83832bdd77ee8e6ba2a3d03ff8b08925475806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93bd59d36ddd37b8dd7a23c09d83832bdd77ee8e6ba2a3d03ff8b08925475806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93bd59d36ddd37b8dd7a23c09d83832bdd77ee8e6ba2a3d03ff8b08925475806", kill_on_drop: false }`
[INFO] [stdout] 93bd59d36ddd37b8dd7a23c09d83832bdd77ee8e6ba2a3d03ff8b08925475806
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78e28908eaa0a4fcb4e95647b0a7fd0085ce4598bd41c963167ad93cc66606df
[INFO] running `Command { std: "docker" "start" "-a" "78e28908eaa0a4fcb4e95647b0a7fd0085ce4598bd41c963167ad93cc66606df", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking prty_fmtmodifier v0.1.1
[INFO] [stderr]     Checking prty_bitgraph v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/graph/sparsegraph.rs:19:79
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn iter_from_nobox<'a>(&'a self, from: usize) -> impl Iterator<Item = &usize> + 'a {
[INFO] [stdout]    |                            -- lifetime `'a` declared here                     ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/graph/sparsegraph.rs:19:79
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn iter_from_nobox<'a>(&'a self, from: usize) -> impl Iterator<Item = &usize> + 'a {
[INFO] [stdout]    |                            -- lifetime `'a` declared here                     ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/graph/mod.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn set_edge(&mut self, from: &Self::Node, to: &Self::Node, bool);
[INFO] [stdout]    |                                                                ^^^^ help: try naming the parameter or explicitly ignoring it: `_: bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/graph/mod.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn set_edge(&mut self, from: &Self::Node, to: &Self::Node, bool);
[INFO] [stdout]    |                                                                ^^^^ help: try naming the parameter or explicitly ignoring it: `_: bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `vec_remove_item`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_remove_item)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `vec_remove_item`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_remove_item)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>>;
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>>;
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:55:57
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:58:53
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:55:57
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_from_drain<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_from_drain<'a>(&'a mut self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:58:53
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:74:87
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_from_drain<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_from_drain<'a>(&'a mut self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/mod.rs:74:87
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/bitgraph.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/bitgraph.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/bitgraph.rs:31:65
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn dependents_mut<'a>(&'a mut self, node: usize) -> Box<'a + Iterator<Item = (usize, &'a mut bool)>> {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn dependents_mut<'a>(&'a mut self, node: usize) -> Box<dyn 'a + Iterator<Item = (usize, &'a mut bool)>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/bitgraph.rs:31:65
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn dependents_mut<'a>(&'a mut self, node: usize) -> Box<'a + Iterator<Item = (usize, &'a mut bool)>> {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn dependents_mut<'a>(&'a mut self, node: usize) -> Box<dyn 'a + Iterator<Item = (usize, &'a mut bool)>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:66:57
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:66:57
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:69:53
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:69:53
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:78:87
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/sparsegraph.rs:78:87
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:63:57
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:63:57
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:67:53
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:67:53
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph/transform.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph/transform.rs:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph/transform.rs:133:57
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph/transform.rs:136:53
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph/transform.rs:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn nodes(&self) -> Box<dyn Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph/transform.rs:133:57
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph/transform.rs:136:53
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<dyn 'a + Iterator<Item = Self::Node>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prty_bitgraph` (lib) due to 2 previous errors; 20 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `prty_bitgraph` (lib test) due to 2 previous errors; 20 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "78e28908eaa0a4fcb4e95647b0a7fd0085ce4598bd41c963167ad93cc66606df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e28908eaa0a4fcb4e95647b0a7fd0085ce4598bd41c963167ad93cc66606df", kill_on_drop: false }`
[INFO] [stdout] 78e28908eaa0a4fcb4e95647b0a7fd0085ce4598bd41c963167ad93cc66606df