[INFO] fetching crate bidir_termtree 0.1.1...
[INFO] checking bidir_termtree-0.1.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate bidir_termtree 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate bidir_termtree 0.1.1 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 crates.io crate bidir_termtree 0.1.1
[INFO] finished tweaking crates.io crate bidir_termtree 0.1.1
[INFO] tweaked toml for crates.io crate bidir_termtree 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate bidir_termtree 0.1.1 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7a51d00adfdf6d9df0edf208e9ca7677c0e946a21609131b0dac9ceb323ee5fa
[INFO] running `Command { std: "docker" "start" "-a" "7a51d00adfdf6d9df0edf208e9ca7677c0e946a21609131b0dac9ceb323ee5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a51d00adfdf6d9df0edf208e9ca7677c0e946a21609131b0dac9ceb323ee5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a51d00adfdf6d9df0edf208e9ca7677c0e946a21609131b0dac9ceb323ee5fa", kill_on_drop: false }`
[INFO] [stdout] 7a51d00adfdf6d9df0edf208e9ca7677c0e946a21609131b0dac9ceb323ee5fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 20ac199c477751373f886f42d7f701955861b61b135e048eecabd12114df4875
[INFO] running `Command { std: "docker" "start" "-a" "20ac199c477751373f886f42d7f701955861b61b135e048eecabd12114df4875", kill_on_drop: false }`
[INFO] [stderr]     Checking bidir_termtree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:281:40
[INFO] [stdout]     |
[INFO] [stdout] 281 |         enqueue_leaves(&mut queue, self.clone(), no_space);
[INFO] [stdout]     |                                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Tree<D, Up>` does not implement `Clone`, so calling `clone` on `&Tree<D, Up>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 281 -         enqueue_leaves(&mut queue, self.clone(), no_space);
[INFO] [stdout] 281 +         enqueue_leaves(&mut queue, self, no_space);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Tree<D, Up>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 33  + #[derive(Clone)]
[INFO] [stdout] 34  | pub struct Tree<D: Display, V: Direction> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:281:40
[INFO] [stdout]     |
[INFO] [stdout] 281 |         enqueue_leaves(&mut queue, self.clone(), no_space);
[INFO] [stdout]     |                                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Tree<D, Up>` does not implement `Clone`, so calling `clone` on `&Tree<D, Up>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 281 -         enqueue_leaves(&mut queue, self.clone(), no_space);
[INFO] [stdout] 281 +         enqueue_leaves(&mut queue, self, no_space);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Tree<D, Up>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 33  + #[derive(Clone)]
[INFO] [stdout] 34  | pub struct Tree<D: Display, V: Direction> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "20ac199c477751373f886f42d7f701955861b61b135e048eecabd12114df4875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ac199c477751373f886f42d7f701955861b61b135e048eecabd12114df4875", kill_on_drop: false }`
[INFO] [stdout] 20ac199c477751373f886f42d7f701955861b61b135e048eecabd12114df4875