[INFO] fetching crate dotwalk 0.1.0...
[INFO] checking dotwalk-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate dotwalk 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate dotwalk 0.1.0
[INFO] finished tweaking crates.io crate dotwalk 0.1.0
[INFO] tweaked toml for crates.io crate dotwalk 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dotwalk 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7da5929df2170b41fc5a55d96dbcd9f6544b3c29b2aa575f5b22661d00f717a5
[INFO] running `Command { std: "docker" "start" "-a" "7da5929df2170b41fc5a55d96dbcd9f6544b3c29b2aa575f5b22661d00f717a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7da5929df2170b41fc5a55d96dbcd9f6544b3c29b2aa575f5b22661d00f717a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7da5929df2170b41fc5a55d96dbcd9f6544b3c29b2aa575f5b22661d00f717a5", kill_on_drop: false }`
[INFO] [stdout] 7da5929df2170b41fc5a55d96dbcd9f6544b3c29b2aa575f5b22661d00f717a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d09624cebebe47a919f8b6048855f304e675232b3c152661a204baea1bd70c4
[INFO] running `Command { std: "docker" "start" "-a" "2d09624cebebe47a919f8b6048855f304e675232b3c152661a204baea1bd70c4", kill_on_drop: false }`
[INFO] [stderr]     Checking dotwalk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:460:21
[INFO] [stdout]     |
[INFO] [stdout] 460 |     fn graph_attrs(&'a self) -> HashMap<&str, &str> {
[INFO] [stdout]     |                     ^^                  ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                     |                   |
[INFO] [stdout]     |                     |                   the lifetimes get resolved as `'a`
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 460 |     fn graph_attrs(&'a self) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                          ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:512:20
[INFO] [stdout]     |
[INFO] [stdout] 512 |     fn node_attrs(&'a self, _n: &Self::Node) -> HashMap<&str, &str> {
[INFO] [stdout]     |                    ^^                                   ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                    |                                    |
[INFO] [stdout]     |                    this lifetime flows to the output    the lifetimes get resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 512 |     fn node_attrs(&'a self, _n: &Self::Node) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                                          ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:542:20
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn edge_attrs(&'a self, _e: &Self::Edge) -> HashMap<&str, &str> {
[INFO] [stdout]     |                    ^^                                   ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                    |                                    |
[INFO] [stdout]     |                    this lifetime flows to the output    the lifetimes get resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn edge_attrs(&'a self, _e: &Self::Edge) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                                          ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:602:24
[INFO] [stdout]     |
[INFO] [stdout] 602 |     fn subgraph_attrs(&'a self, _n: &Self::Subgraph) -> HashMap<&str, &str> {
[INFO] [stdout]     |                        ^^                                       ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                        |                                        |
[INFO] [stdout]     |                        this lifetime flows to the output        the lifetimes get resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 602 |     fn subgraph_attrs(&'a self, _n: &Self::Subgraph) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                                                  ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:460:21
[INFO] [stdout]     |
[INFO] [stdout] 460 |     fn graph_attrs(&'a self) -> HashMap<&str, &str> {
[INFO] [stdout]     |                     ^^                  ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                     |                   |
[INFO] [stdout]     |                     |                   the lifetimes get resolved as `'a`
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 460 |     fn graph_attrs(&'a self) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                          ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:512:20
[INFO] [stdout]     |
[INFO] [stdout] 512 |     fn node_attrs(&'a self, _n: &Self::Node) -> HashMap<&str, &str> {
[INFO] [stdout]     |                    ^^                                   ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                    |                                    |
[INFO] [stdout]     |                    this lifetime flows to the output    the lifetimes get resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 512 |     fn node_attrs(&'a self, _n: &Self::Node) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                                          ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:542:20
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn edge_attrs(&'a self, _e: &Self::Edge) -> HashMap<&str, &str> {
[INFO] [stdout]     |                    ^^                                   ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                    |                                    |
[INFO] [stdout]     |                    this lifetime flows to the output    the lifetimes get resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn edge_attrs(&'a self, _e: &Self::Edge) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                                          ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:602:24
[INFO] [stdout]     |
[INFO] [stdout] 602 |     fn subgraph_attrs(&'a self, _n: &Self::Subgraph) -> HashMap<&str, &str> {
[INFO] [stdout]     |                        ^^                                       ----  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                        |                                        |
[INFO] [stdout]     |                        this lifetime flows to the output        the lifetimes get resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 602 |     fn subgraph_attrs(&'a self, _n: &Self::Subgraph) -> HashMap<&'a str, &'a str> {
[INFO] [stdout]     |                                                                  ++       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "2d09624cebebe47a919f8b6048855f304e675232b3c152661a204baea1bd70c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d09624cebebe47a919f8b6048855f304e675232b3c152661a204baea1bd70c4", kill_on_drop: false }`
[INFO] [stdout] 2d09624cebebe47a919f8b6048855f304e675232b3c152661a204baea1bd70c4