[INFO] fetching crate lelwel 0.8.0...
[INFO] checking lelwel-0.8.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate lelwel 0.8.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate lelwel 0.8.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lelwel 0.8.0
[INFO] tweaked toml for crates.io crate lelwel 0.8.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lelwel 0.8.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lelwel 0.8.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded codespan-lsp v0.11.1
[INFO] [stderr]   Downloaded logos-derive v0.15.0
[INFO] [stderr]   Downloaded logos-codegen v0.15.0
[INFO] [stderr]   Downloaded lsp-types v0.88.0
[INFO] [stderr]   Downloaded logos v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a98b235a300f80af1fdcd21a651574388ace139af008b41be3357be23aa5d43
[INFO] running `Command { std: "docker" "start" "-a" "2a98b235a300f80af1fdcd21a651574388ace139af008b41be3357be23aa5d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a98b235a300f80af1fdcd21a651574388ace139af008b41be3357be23aa5d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a98b235a300f80af1fdcd21a651574388ace139af008b41be3357be23aa5d43", kill_on_drop: false }`
[INFO] [stdout] 2a98b235a300f80af1fdcd21a651574388ace139af008b41be3357be23aa5d43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783b7762f84b3c8b2e407ea358e62d752bfa5f640bd27e917e88a550d9fb5985
[INFO] running `Command { std: "docker" "start" "-a" "783b7762f84b3c8b2e407ea358e62d752bfa5f640bd27e917e88a550d9fb5985", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling logos-codegen v0.15.0
[INFO] [stderr]    Compiling logos-derive v0.15.0
[INFO] [stderr]     Checking logos v0.15.0
[INFO] [stderr]     Checking lelwel v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/frontend/ast.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] 109 |         syntax: NodeRef,
[INFO] [stdout] 110 |     ) -> std::iter::FilterMap<CstChildren, impl FnMut(NodeRef) -> Option<T> + '_> {
[INFO] [stdout]     |                               ----------- the lifetimes get resolved as `'_`  -- the lifetimes get resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     ) -> std::iter::FilterMap<CstChildren<'_>, impl FnMut(NodeRef) -> Option<T> + '_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/frontend/ast.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] 109 |         syntax: NodeRef,
[INFO] [stdout] 110 |     ) -> std::iter::FilterMap<CstChildren, impl FnMut(NodeRef) -> Option<T> + '_> {
[INFO] [stdout]     |                               ----------- the lifetimes get resolved as `'_`  -- the lifetimes get resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     ) -> std::iter::FilterMap<CstChildren<'_>, impl FnMut(NodeRef) -> Option<T> + '_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/frontend/./generated.rs:266:21
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn children(&self, node_ref: NodeRef) -> CstChildren {
[INFO] [stdout]     |                     ^^^^^                        ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn children(&self, node_ref: NodeRef) -> CstChildren<'_> {
[INFO] [stdout]     |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/frontend/./generated.rs:266:21
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn children(&self, node_ref: NodeRef) -> CstChildren {
[INFO] [stdout]     |                     ^^^^^                        ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn children(&self, node_ref: NodeRef) -> CstChildren<'_> {
[INFO] [stdout]     |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.98s
[INFO] running `Command { std: "docker" "inspect" "783b7762f84b3c8b2e407ea358e62d752bfa5f640bd27e917e88a550d9fb5985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783b7762f84b3c8b2e407ea358e62d752bfa5f640bd27e917e88a550d9fb5985", kill_on_drop: false }`
[INFO] [stdout] 783b7762f84b3c8b2e407ea358e62d752bfa5f640bd27e917e88a550d9fb5985