[INFO] fetching crate dachshund 0.1.10...
[INFO] checking dachshund-0.1.10 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dachshund 0.1.10 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate dachshund 0.1.10
[INFO] finished tweaking crates.io crate dachshund 0.1.10
[INFO] tweaked toml for crates.io crate dachshund 0.1.10 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dachshund 0.1.10 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dachshund 0.1.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9765cfd6e4a7b653e6a49b630fc22514c007ad122b5d31b7e1969b061aff8d36
[INFO] running `Command { std: "docker" "start" "-a" "9765cfd6e4a7b653e6a49b630fc22514c007ad122b5d31b7e1969b061aff8d36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9765cfd6e4a7b653e6a49b630fc22514c007ad122b5d31b7e1969b061aff8d36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9765cfd6e4a7b653e6a49b630fc22514c007ad122b5d31b7e1969b061aff8d36", kill_on_drop: false }`
[INFO] [stdout] 9765cfd6e4a7b653e6a49b630fc22514c007ad122b5d31b7e1969b061aff8d36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e08f978df01a888d03644d50478f740e60e5522208aaa9b6b7e059082037f3e
[INFO] running `Command { std: "docker" "start" "-a" "5e08f978df01a888d03644d50478f740e60e5522208aaa9b6b7e059082037f3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking safe_arch v0.7.1
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[INFO] [stderr]     Checking crossbeam-deque v0.8.3
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[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.31.4
[INFO] [stderr]     Checking dachshund v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/graph_base.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn get_ids_iter(&self) -> Keys<<Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[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] 25 |     fn get_ids_iter(&self) -> Keys<'_, <Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/graph_base.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn get_nodes_iter(&self) -> Values<<Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[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] 26 |     fn get_nodes_iter(&self) -> Values<'_, <Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/output.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn string(text: &'a mut Vec<u8>) -> Output {
[INFO] [stdout]    |                          --                 ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named 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] 25 |     pub fn string(text: &'a mut Vec<u8>) -> Output<'a> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_directed_graph.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn get_ids_iter(&self) -> Keys<NodeId, SimpleDirectedNode> {
[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] 60 |     fn get_ids_iter(&self) -> Keys<'_, NodeId, SimpleDirectedNode> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_directed_graph.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn get_nodes_iter(&self) -> Values<NodeId, SimpleDirectedNode> {
[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] 63 |     fn get_nodes_iter(&self) -> Values<'_, NodeId, SimpleDirectedNode> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_undirected_graph.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_ids_iter(&self) -> Keys<NodeId, SimpleNode> {
[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] 51 |     fn get_ids_iter(&self) -> Keys<'_, NodeId, SimpleNode> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_undirected_graph.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn get_nodes_iter(&self) -> Values<NodeId, SimpleNode> {
[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] 54 |     fn get_nodes_iter(&self) -> Values<'_, NodeId, SimpleNode> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]    --> src/dachshund/transformer.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let core_type: String = arg_value("core_type")?.parse::<String>()?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/dachshund/transformer.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let core_type: String = arg_value("core_type")?.parse::<String>()?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/typed_graph.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn get_ids_iter(&self) -> Keys<u32, Node> {
[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] 78 |     fn get_ids_iter(&self) -> Keys<'_, u32, Node> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/typed_graph.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_nodes_iter(&self) -> Values<u32, Node> {
[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] 84 |     fn get_nodes_iter(&self) -> Values<'_, u32, Node> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/weighted_undirected_graph.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn get_ids_iter(&self) -> Keys<NodeId, WeightedNode> {
[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] 48 |     fn get_ids_iter(&self) -> Keys<'_, NodeId, WeightedNode> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/weighted_undirected_graph.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_nodes_iter(&self) -> Values<NodeId, WeightedNode> {
[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] 51 |     fn get_nodes_iter(&self) -> Values<'_, NodeId, WeightedNode> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dachshund` (lib) due to 2 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/graph_base.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn get_ids_iter(&self) -> Keys<<Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[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] 25 |     fn get_ids_iter(&self) -> Keys<'_, <Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/graph_base.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn get_nodes_iter(&self) -> Values<<Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[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] 26 |     fn get_nodes_iter(&self) -> Values<'_, <Self::NodeType as NodeBase>::NodeIdType, Self::NodeType>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/output.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn string(text: &'a mut Vec<u8>) -> Output {
[INFO] [stdout]    |                          --                 ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named 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] 25 |     pub fn string(text: &'a mut Vec<u8>) -> Output<'a> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_directed_graph.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn get_ids_iter(&self) -> Keys<NodeId, SimpleDirectedNode> {
[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] 60 |     fn get_ids_iter(&self) -> Keys<'_, NodeId, SimpleDirectedNode> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_directed_graph.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn get_nodes_iter(&self) -> Values<NodeId, SimpleDirectedNode> {
[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] 63 |     fn get_nodes_iter(&self) -> Values<'_, NodeId, SimpleDirectedNode> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_undirected_graph.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_ids_iter(&self) -> Keys<NodeId, SimpleNode> {
[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] 51 |     fn get_ids_iter(&self) -> Keys<'_, NodeId, SimpleNode> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/simple_undirected_graph.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn get_nodes_iter(&self) -> Values<NodeId, SimpleNode> {
[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] 54 |     fn get_nodes_iter(&self) -> Values<'_, NodeId, SimpleNode> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]    --> src/dachshund/transformer.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let core_type: String = arg_value("core_type")?.parse::<String>()?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/dachshund/transformer.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let core_type: String = arg_value("core_type")?.parse::<String>()?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/typed_graph.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn get_ids_iter(&self) -> Keys<u32, Node> {
[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] 78 |     fn get_ids_iter(&self) -> Keys<'_, u32, Node> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/typed_graph.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_nodes_iter(&self) -> Values<u32, Node> {
[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] 84 |     fn get_nodes_iter(&self) -> Values<'_, u32, Node> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/weighted_undirected_graph.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn get_ids_iter(&self) -> Keys<NodeId, WeightedNode> {
[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] 48 |     fn get_ids_iter(&self) -> Keys<'_, NodeId, WeightedNode> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dachshund/weighted_undirected_graph.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_nodes_iter(&self) -> Values<NodeId, WeightedNode> {
[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] 51 |     fn get_nodes_iter(&self) -> Values<'_, NodeId, WeightedNode> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dachshund` (lib test) due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5e08f978df01a888d03644d50478f740e60e5522208aaa9b6b7e059082037f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e08f978df01a888d03644d50478f740e60e5522208aaa9b6b7e059082037f3e", kill_on_drop: false }`
[INFO] [stdout] 5e08f978df01a888d03644d50478f740e60e5522208aaa9b6b7e059082037f3e