[INFO] cloning repository https://github.com/Matz-Mp4/Tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Matz-Mp4/Tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatz-Mp4%2FTree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatz-Mp4%2FTree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2859d51d79fcd45cb30a636d0ba4534458c42339
[INFO] checking Matz-Mp4/Tree/2859d51d79fcd45cb30a636d0ba4534458c42339 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatz-Mp4%2FTree" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Matz-Mp4/Tree on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Matz-Mp4/Tree
[INFO] finished tweaking git repo https://github.com/Matz-Mp4/Tree
[INFO] tweaked toml for git repo https://github.com/Matz-Mp4/Tree written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Matz-Mp4/Tree 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76b66713a16a6e14598eca64bfdbb4c7d88e8a4b19fafd2e399e57b5c7f412d8
[INFO] running `Command { std: "docker" "start" "-a" "76b66713a16a6e14598eca64bfdbb4c7d88e8a4b19fafd2e399e57b5c7f412d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b66713a16a6e14598eca64bfdbb4c7d88e8a4b19fafd2e399e57b5c7f412d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b66713a16a6e14598eca64bfdbb4c7d88e8a4b19fafd2e399e57b5c7f412d8", kill_on_drop: false }`
[INFO] [stdout] 76b66713a16a6e14598eca64bfdbb4c7d88e8a4b19fafd2e399e57b5c7f412d8
[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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c7ac5f20ab0cb7690e0e7879a02f4d6733d37c04672d4be71854786c6a8e1ef
[INFO] running `Command { std: "docker" "start" "-a" "5c7ac5f20ab0cb7690e0e7879a02f4d6733d37c04672d4be71854786c6a8e1ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/avl/iterator.rs:90:81
[INFO] [stdout]    |
[INFO] [stdout] 62 |     impl<'a, T: Ord> AvlTree<T> {
[INFO] [stdout]    |          -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 90 |         pub fn iter(&'a self) -> Map<AvlNodeIterator<'a, T>, fn(&'a Node<T>) -> &T> {
[INFO] [stdout]    |                                                                                 ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/avl/iterator.rs:90:81
[INFO] [stdout]    |
[INFO] [stdout] 62 |     impl<'a, T: Ord> AvlTree<T> {
[INFO] [stdout]    |          -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 90 |         pub fn iter(&'a self) -> Map<AvlNodeIterator<'a, T>, fn(&'a Node<T>) -> &T> {
[INFO] [stdout]    |                                                                                 ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "5c7ac5f20ab0cb7690e0e7879a02f4d6733d37c04672d4be71854786c6a8e1ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c7ac5f20ab0cb7690e0e7879a02f4d6733d37c04672d4be71854786c6a8e1ef", kill_on_drop: false }`
[INFO] [stdout] 5c7ac5f20ab0cb7690e0e7879a02f4d6733d37c04672d4be71854786c6a8e1ef