[INFO] cloning repository https://github.com/luizalbertocviana/rust-workspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luizalbertocviana/rust-workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizalbertocviana%2Frust-workspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizalbertocviana%2Frust-workspace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ceba748da7d8aeef3d1f4fcade912e75f80f7d26
[INFO] checking luizalbertocviana/rust-workspace against 24e1a22664233bce1f9b5dc6eee7c1f74327e28c for pr-159343-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizalbertocviana%2Frust-workspace" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
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Updating files: 100% (12212/12212), done.
[INFO] started tweaking git repo https://github.com/luizalbertocviana/rust-workspace
[INFO] finished tweaking git repo https://github.com/luizalbertocviana/rust-workspace
[INFO] tweaked toml for git repo https://github.com/luizalbertocviana/rust-workspace written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luizalbertocviana/rust-workspace on toolchain 24e1a22664233bce1f9b5dc6eee7c1f74327e28c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luizalbertocviana/rust-workspace 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" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking luizalbertocviana/rust-workspace against 24e1a22664233bce1f9b5dc6eee7c1f74327e28c for pr-159343-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizalbertocviana%2Frust-workspace" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/luizalbertocviana/rust-workspace
[INFO] finished tweaking git repo https://github.com/luizalbertocviana/rust-workspace
[INFO] tweaked toml for git repo https://github.com/luizalbertocviana/rust-workspace written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luizalbertocviana/rust-workspace on toolchain 24e1a22664233bce1f9b5dc6eee7c1f74327e28c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luizalbertocviana/rust-workspace 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" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.6.1
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27
[INFO] running `Command { std: "docker" "start" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27", 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" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27", 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" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking disjoint-set v0.1.0 (/opt/rustwide/workdir/disjoint-set)
[INFO] [stderr]     Checking matrix v0.1.0 (/opt/rustwide/workdir/matrix)
[INFO] [stderr]     Checking branch-bound v0.1.0 (/opt/rustwide/workdir/branch-bound)
[INFO] [stderr]     Checking solving-manager v0.1.0 (/opt/rustwide/workdir/solving-manager)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> disjoint-set/src/disjoint_set.rs:86:17
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn join(&mut self, element_a: usize, element_b: usize) -> Result {
[INFO] [stdout]    |                 ^^^^^^^^^ the lifetime is elided here             ^^^^^^ the same lifetime is hidden 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] 86 |     pub fn join(&mut self, element_a: usize, element_b: usize) -> Result<'_> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> disjoint-set/src/disjoint_set.rs:86:17
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn join(&mut self, element_a: usize, element_b: usize) -> Result {
[INFO] [stdout]    |                 ^^^^^^^^^ the lifetime is elided here             ^^^^^^ the same lifetime is hidden 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] 86 |     pub fn join(&mut self, element_a: usize, element_b: usize) -> Result<'_> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> matrix/src/triangular_matrix.rs:46:15
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn at(&mut self, i: usize, j: usize) -> Reference<T> {
[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] 46 |     pub fn at(&mut self, i: usize, j: usize) -> Reference<'_, T> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> matrix/src/triangular_matrix.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn const_at(&self, i: usize, j: usize) -> ConstReference<T> {
[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] 61 |     pub fn const_at(&self, i: usize, j: usize) -> ConstReference<'_, T> {
[INFO] [stdout]    |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> branch-bound/src/solving_status.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn set_lower_bound(&mut self, lb: SolCost<T>) -> Result {
[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] 58 |     pub fn set_lower_bound(&mut self, lb: SolCost<T>) -> Result<'_> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> branch-bound/src/solving_status.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn set_best_solution(&mut self, sol: Sol<T>) -> Result {
[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] 75 |     pub fn set_best_solution(&mut self, sol: Sol<T>) -> Result<'_> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> matrix/src/triangular_matrix.rs:46:15
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn at(&mut self, i: usize, j: usize) -> Reference<T> {
[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] 46 |     pub fn at(&mut self, i: usize, j: usize) -> Reference<'_, T> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> matrix/src/triangular_matrix.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn const_at(&self, i: usize, j: usize) -> ConstReference<T> {
[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] 61 |     pub fn const_at(&self, i: usize, j: usize) -> ConstReference<'_, T> {
[INFO] [stdout]    |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> branch-bound/src/solving_status.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn set_lower_bound(&mut self, lb: SolCost<T>) -> Result {
[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] 58 |     pub fn set_lower_bound(&mut self, lb: SolCost<T>) -> Result<'_> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> branch-bound/src/solving_status.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn set_best_solution(&mut self, sol: Sol<T>) -> Result {
[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] 75 |     pub fn set_best_solution(&mut self, sol: Sol<T>) -> Result<'_> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking graph v0.1.0 (/opt/rustwide/workdir/graph)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> graph/src/digraph.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn edges(&'a self) -> EdgeIterator {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn edges(&'a self) -> EdgeIterator<'a> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/digraph.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/digraph.rs:142:20
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 142 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/graph.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn edges(&self) -> EdgeIterator {
[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] 127 |     fn edges(&self) -> EdgeIterator<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/graph.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/graph.rs:145:20
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 145 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> graph/src/subgraph.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 92 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/subgraph.rs:118:20
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 118 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/weighted_graph.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 179 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/weighted_graph.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 192 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/weighted_graph.rs:211:30
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn add_weighted_edge(&mut self, i: usize, j: usize, w: W) -> Result {
[INFO] [stdout]     |                              ^^^^^^^^^ the lifetime is elided here   ^^^^^^ the same lifetime is hidden 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] 211 |     pub fn add_weighted_edge(&mut self, i: usize, j: usize, w: W) -> Result<'_> {
[INFO] [stdout]     |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> graph/src/traits.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn add_edge(&mut self, i: usize, j: usize) -> Result;
[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] 19 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_>;
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> graph/src/traits.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result;
[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] 22 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_>;
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> graph/src/neighbors.rs:30:70
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn in_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, v: usize) -> InNeighborIterator<T> {
[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] 30 | pub fn in_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, v: usize) -> InNeighborIterator<'a, T> {
[INFO] [stdout]    |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> graph/src/neighbors.rs:40:71
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn out_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, u: usize) -> OutNeighborIterator<T> {
[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] 40 | pub fn out_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, u: usize) -> OutNeighborIterator<'a, T> {
[INFO] [stdout]    |                                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking instance v0.1.0 (/opt/rustwide/workdir/instance)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> graph/src/digraph.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn edges(&'a self) -> EdgeIterator {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn edges(&'a self) -> EdgeIterator<'a> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/digraph.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/digraph.rs:142:20
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 142 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/graph.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn edges(&self) -> EdgeIterator {
[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] 127 |     fn edges(&self) -> EdgeIterator<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/graph.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 131 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/graph.rs:145:20
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 145 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> graph/src/subgraph.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 92 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/subgraph.rs:118:20
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 118 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/weighted_graph.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn add_edge(&mut self, i: usize, j: usize) -> Result {
[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] 179 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/weighted_graph.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result {
[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] 192 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> graph/src/weighted_graph.rs:211:30
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn add_weighted_edge(&mut self, i: usize, j: usize, w: W) -> Result {
[INFO] [stdout]     |                              ^^^^^^^^^ the lifetime is elided here   ^^^^^^ the same lifetime is hidden 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] 211 |     pub fn add_weighted_edge(&mut self, i: usize, j: usize, w: W) -> Result<'_> {
[INFO] [stdout]     |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> graph/src/traits.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn add_edge(&mut self, i: usize, j: usize) -> Result;
[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] 19 |     fn add_edge(&mut self, i: usize, j: usize) -> Result<'_>;
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> graph/src/traits.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result;
[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] 22 |     fn remove_edge(&mut self, i: usize, j: usize) -> Result<'_>;
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> graph/src/neighbors.rs:30:70
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn in_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, v: usize) -> InNeighborIterator<T> {
[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] 30 | pub fn in_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, v: usize) -> InNeighborIterator<'a, T> {
[INFO] [stdout]    |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> graph/src/neighbors.rs:40:71
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn out_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, u: usize) -> OutNeighborIterator<T> {
[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] 40 | pub fn out_neighbors<'a, T: GraphImpl<'a>>(graph: &'a T, u: usize) -> OutNeighborIterator<'a, T> {
[INFO] [stdout]    |                                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking instance-generators v0.1.0 (/opt/rustwide/workdir/instance-generators)
[INFO] [stderr]     Checking instance-bb v0.1.0 (/opt/rustwide/workdir/instance-bb)
[INFO] [stderr]     Checking instance-bb-solver v0.1.0 (/opt/rustwide/workdir/instance-bb-solver)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27", kill_on_drop: false }`
[INFO] [stdout] 036426fe37197b8c64cf130f6bf1da39b26047ab61cfa18bd8d23d025d8b8f27
