[INFO] fetching crate elba 0.3.0...
[INFO] checking elba-0.3.0 against try#2cbf9c3ff35600794d69a7dc7ab399810a067910 for pr-129249-2
[INFO] extracting crate elba 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate elba 0.3.0
[INFO] finished tweaking crates.io crate elba 0.3.0
[INFO] tweaked toml for crates.io crate elba 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate elba 0.3.0 on toolchain 2cbf9c3ff35600794d69a7dc7ab399810a067910
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 325 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.6.1)
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[INFO] [stderr]       Adding textwrap v0.10.0 (available: v0.16.2)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5
[INFO] running `Command { std: "docker" "start" "a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5" "/opt/rustwide/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5" "/opt/rustwide/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib/retrieve/cache.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib/retrieve/cache.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib/util/git.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |     cb: &mut FnMut(git2::FetchOptions) -> Res<T>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 372 |     cb: &mut dyn FnMut(git2::FetchOptions) -> Res<T>,
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib/util/git.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |     cb: &mut FnMut(git2::FetchOptions) -> Res<T>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 372 |     cb: &mut dyn FnMut(git2::FetchOptions) -> Res<T>,
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lock` is never read
[INFO] [stdout]    --> src/lib/retrieve/cache.rs:613:5
[INFO] [stdout]     |
[INFO] [stdout] 612 | pub struct OutputLayout {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 613 |     lock: DirLock,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OutputLayout` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/retrieve/mod.rs:414:19
[INFO] [stdout]     |
[INFO] [stdout] 414 |     pub fn select(&mut self, sum: &Summary) -> Res<Cow<ResolvedEntry>> {
[INFO] [stdout]     |                   ^^^^^^^^^                        ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 414 |     pub fn select(&mut self, sum: &Summary) -> Res<Cow<'_, ResolvedEntry>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/retrieve/mod.rs:439:20
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn entries(&mut self, pkg: &PackageId) -> Res<Cow<IndexMap<Version, ResolvedEntry>>> {
[INFO] [stdout]     |                    ^^^^^^^^^                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn entries(&mut self, pkg: &PackageId) -> Res<Cow<'_, IndexMap<Version, ResolvedEntry>>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib/util/errors.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
[INFO] [stdout]    |                                             ^---
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             `Fail` is not local
[INFO] [stdout]    |                                             move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_ErrorKind`
[INFO] [stdout] 12 | pub enum ErrorKind {
[INFO] [stdout]    |          --------- `ErrorKind` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib/util/errors.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
[INFO] [stdout]    |                                             ^---
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             `Display` is not local
[INFO] [stdout]    |                                             move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_ErrorKind`
[INFO] [stdout] 12 | pub enum ErrorKind {
[INFO] [stdout]    |          --------- `ErrorKind` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib/util/graph.rs:48:43
[INFO] [stdout]    |
[INFO] [stdout] 46 |         &'a self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 47 |         root_id: NodeIndex,
[INFO] [stdout] 48 |     ) -> impl Iterator<Item = (NodeIndex, &T)> + 'a {
[INFO] [stdout]    |                                           ^^     -- the same lifetime is named here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     ) -> impl Iterator<Item = (NodeIndex, &'a T)> + 'a {
[INFO] [stdout]    |                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib/util/graph.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 56 |         &'a self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 57 |         parent_id: NodeIndex,
[INFO] [stdout] 58 |     ) -> impl Iterator<Item = (NodeIndex, &T)> + 'a {
[INFO] [stdout]    |                                           ^^     -- the same lifetime is named here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 58 |     ) -> impl Iterator<Item = (NodeIndex, &'a T)> + 'a {
[INFO] [stdout]    |                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib/util/graph.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 66 |         &'a self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 67 |         child_id: NodeIndex,
[INFO] [stdout] 68 |     ) -> impl Iterator<Item = (NodeIndex, &T)> + 'a {
[INFO] [stdout]    |                                           ^^     -- the same lifetime is named here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     ) -> impl Iterator<Item = (NodeIndex, &'a T)> + 'a {
[INFO] [stdout]    |                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lock` is never read
[INFO] [stdout]    --> src/lib/retrieve/cache.rs:613:5
[INFO] [stdout]     |
[INFO] [stdout] 612 | pub struct OutputLayout {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 613 |     lock: DirLock,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OutputLayout` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/retrieve/mod.rs:414:19
[INFO] [stdout]     |
[INFO] [stdout] 414 |     pub fn select(&mut self, sum: &Summary) -> Res<Cow<ResolvedEntry>> {
[INFO] [stdout]     |                   ^^^^^^^^^                        ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 414 |     pub fn select(&mut self, sum: &Summary) -> Res<Cow<'_, ResolvedEntry>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/retrieve/mod.rs:439:20
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn entries(&mut self, pkg: &PackageId) -> Res<Cow<IndexMap<Version, ResolvedEntry>>> {
[INFO] [stdout]     |                    ^^^^^^^^^                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn entries(&mut self, pkg: &PackageId) -> Res<Cow<'_, IndexMap<Version, ResolvedEntry>>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib/util/errors.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
[INFO] [stdout]    |                                             ^---
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             `Fail` is not local
[INFO] [stdout]    |                                             move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_ErrorKind`
[INFO] [stdout] 12 | pub enum ErrorKind {
[INFO] [stdout]    |          --------- `ErrorKind` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib/util/errors.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
[INFO] [stdout]    |                                             ^---
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             `Display` is not local
[INFO] [stdout]    |                                             move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_ErrorKind`
[INFO] [stdout] 12 | pub enum ErrorKind {
[INFO] [stdout]    |          --------- `ErrorKind` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib/util/graph.rs:48:43
[INFO] [stdout]    |
[INFO] [stdout] 46 |         &'a self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 47 |         root_id: NodeIndex,
[INFO] [stdout] 48 |     ) -> impl Iterator<Item = (NodeIndex, &T)> + 'a {
[INFO] [stdout]    |                                           ^^     -- the same lifetime is named here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     ) -> impl Iterator<Item = (NodeIndex, &'a T)> + 'a {
[INFO] [stdout]    |                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib/util/graph.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 56 |         &'a self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 57 |         parent_id: NodeIndex,
[INFO] [stdout] 58 |     ) -> impl Iterator<Item = (NodeIndex, &T)> + 'a {
[INFO] [stdout]    |                                           ^^     -- the same lifetime is named here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 58 |     ) -> impl Iterator<Item = (NodeIndex, &'a T)> + 'a {
[INFO] [stdout]    |                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib/util/graph.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 66 |         &'a self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 67 |         child_id: NodeIndex,
[INFO] [stdout] 68 |     ) -> impl Iterator<Item = (NodeIndex, &T)> + 'a {
[INFO] [stdout]    |                                           ^^     -- the same lifetime is named here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     ) -> impl Iterator<Item = (NodeIndex, &'a T)> + 'a {
[INFO] [stdout]    |                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5", kill_on_drop: false }`
[INFO] [stdout] a6e1728b2da4d5a5ac84ab1fd4b438628654c81291c6367581cd8e7a246f61b5
