[INFO] fetching crate rwalk 0.9.0...
[INFO] building rwalk-0.9.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rwalk 0.9.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rwalk 0.9.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rwalk 0.9.0
[INFO] tweaked toml for crates.io crate rwalk 0.9.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rwalk 0.9.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rwalk 0.9.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "fde4e0b180f48a8503520ae5ccf3a736a96823e6d27a1bdaccd5c6af53f41ed7", kill_on_drop: false }`
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[INFO] [stdout] d3076f0af21d909f30a97c52be96d5e6219be8bee9e9f9def2d3cd86d48664e3
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[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/tree.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn children(&self) -> std::borrow::Cow<[Self::Child]> {
[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] 184 |     fn children(&self) -> std::borrow::Cow<'_, [Self::Child]> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/tree.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn children(&self) -> std::borrow::Cow<[Self::Child]> {
[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] 215 |     fn children(&self) -> std::borrow::Cow<'_, [Self::Child]> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8m 27s
[INFO] running `Command { std: "docker" "inspect" "d3076f0af21d909f30a97c52be96d5e6219be8bee9e9f9def2d3cd86d48664e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3076f0af21d909f30a97c52be96d5e6219be8bee9e9f9def2d3cd86d48664e3", kill_on_drop: false }`
[INFO] [stdout] d3076f0af21d909f30a97c52be96d5e6219be8bee9e9f9def2d3cd86d48664e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 173b06104965fc7bcab99103bc848449c7f62215e0d2cc17046f59c61972d4ac
[INFO] running `Command { std: "docker" "start" "-a" "173b06104965fc7bcab99103bc848449c7f62215e0d2cc17046f59c61972d4ac", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/tree.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn children(&self) -> std::borrow::Cow<[Self::Child]> {
[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] 184 |     fn children(&self) -> std::borrow::Cow<'_, [Self::Child]> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/tree.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn children(&self) -> std::borrow::Cow<[Self::Child]> {
[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] 215 |     fn children(&self) -> std::borrow::Cow<'_, [Self::Child]> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rwalk v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/tree.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn children(&self) -> std::borrow::Cow<[Self::Child]> {
[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] 184 |     fn children(&self) -> std::borrow::Cow<'_, [Self::Child]> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/tree.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn children(&self) -> std::borrow::Cow<[Self::Child]> {
[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] 215 |     fn children(&self) -> std::borrow::Cow<'_, [Self::Child]> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 29.61s
[INFO] running `Command { std: "docker" "inspect" "173b06104965fc7bcab99103bc848449c7f62215e0d2cc17046f59c61972d4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "173b06104965fc7bcab99103bc848449c7f62215e0d2cc17046f59c61972d4ac", kill_on_drop: false }`
[INFO] [stdout] 173b06104965fc7bcab99103bc848449c7f62215e0d2cc17046f59c61972d4ac
