[INFO] fetching crate shele 0.4.0...
[INFO] checking shele-0.4.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate shele 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate shele 0.4.0
[INFO] finished tweaking crates.io crate shele 0.4.0
[INFO] tweaked toml for crates.io crate shele 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shele 0.4.0 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] crate crates.io crate shele 0.4.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5667f3267eef4ee66614bdae5b21bde900b3327db32e81e4d12a1d49b45d06bf
[INFO] running `Command { std: "docker" "start" "-a" "5667f3267eef4ee66614bdae5b21bde900b3327db32e81e4d12a1d49b45d06bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5667f3267eef4ee66614bdae5b21bde900b3327db32e81e4d12a1d49b45d06bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5667f3267eef4ee66614bdae5b21bde900b3327db32e81e4d12a1d49b45d06bf", kill_on_drop: false }`
[INFO] [stdout] 5667f3267eef4ee66614bdae5b21bde900b3327db32e81e4d12a1d49b45d06bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d73d34a6165f10f28afc037745d964c23de8476e347ea6c949b1c45dd4ca3298
[INFO] running `Command { std: "docker" "start" "-a" "d73d34a6165f10f28afc037745d964c23de8476e347ea6c949b1c45dd4ca3298", kill_on_drop: false }`
[INFO] [stderr]     Checking shele v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/element/mod.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn get_children(&self) -> &Children {
[INFO] [stdout]    |                         ^^^^^     ---------
[INFO] [stdout]    |                         |         ||
[INFO] [stdout]    |                         |         |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                         |         the lifetimes get resolved as `'_`
[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 remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn get_children(&self) -> &Children<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/element/mod.rs:70:22
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn get_attrs(&self) -> &Attributes {
[INFO] [stdout]    |                      ^^^^^     -----------
[INFO] [stdout]    |                      |         ||
[INFO] [stdout]    |                      |         |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                      |         the lifetimes get resolved as `'_`
[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] 70 |     pub fn get_attrs(&self) -> &Attributes<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/element/mod.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn get_children(&self) -> &Children {
[INFO] [stdout]    |                         ^^^^^     ---------
[INFO] [stdout]    |                         |         ||
[INFO] [stdout]    |                         |         |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                         |         the lifetimes get resolved as `'_`
[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 remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn get_children(&self) -> &Children<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/element/mod.rs:70:22
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn get_attrs(&self) -> &Attributes {
[INFO] [stdout]    |                      ^^^^^     -----------
[INFO] [stdout]    |                      |         ||
[INFO] [stdout]    |                      |         |the lifetimes get resolved as `'_`
[INFO] [stdout]    |                      |         the lifetimes get resolved as `'_`
[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] 70 |     pub fn get_attrs(&self) -> &Attributes<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]    --> src/element/mod.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         state.finish();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let _ = state.finish();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]    --> src/element/mod.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         state.finish();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let _ = state.finish();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d73d34a6165f10f28afc037745d964c23de8476e347ea6c949b1c45dd4ca3298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73d34a6165f10f28afc037745d964c23de8476e347ea6c949b1c45dd4ca3298", kill_on_drop: false }`
[INFO] [stdout] d73d34a6165f10f28afc037745d964c23de8476e347ea6c949b1c45dd4ca3298