[INFO] cloning repository https://github.com/BenCassidy33/AlgoTrees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenCassidy33/AlgoTrees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenCassidy33%2FAlgoTrees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenCassidy33%2FAlgoTrees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63b3c7a99ee9830bdd82ee0ef87fec0bb5e678e5
[INFO] checking BenCassidy33/AlgoTrees/63b3c7a99ee9830bdd82ee0ef87fec0bb5e678e5 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%2FBenCassidy33%2FAlgoTrees" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenCassidy33/AlgoTrees 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/BenCassidy33/AlgoTrees
[INFO] finished tweaking git repo https://github.com/BenCassidy33/AlgoTrees
[INFO] tweaked toml for git repo https://github.com/BenCassidy33/AlgoTrees written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/BenCassidy33/AlgoTrees 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] [stderr] warning: unused manifest key: package.author
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2560d9ef7cf897970f72158900828d190726094c67e127bdbf307d207af5a0e8
[INFO] running `Command { std: "docker" "start" "-a" "2560d9ef7cf897970f72158900828d190726094c67e127bdbf307d207af5a0e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2560d9ef7cf897970f72158900828d190726094c67e127bdbf307d207af5a0e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2560d9ef7cf897970f72158900828d190726094c67e127bdbf307d207af5a0e8", kill_on_drop: false }`
[INFO] [stdout] 2560d9ef7cf897970f72158900828d190726094c67e127bdbf307d207af5a0e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3035812aa5dd087bdf44ea7d47014937a8736d791d87d0c19f25ac2dd749769f
[INFO] running `Command { std: "docker" "start" "-a" "3035812aa5dd087bdf44ea7d47014937a8736d791d87d0c19f25ac2dd749769f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]     Checking algotrees v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::trees::types::Tree`
[INFO] [stdout]  --> src/trees/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use crate::trees::types::Tree;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::trees::types::Tree`
[INFO] [stdout]  --> src/trees/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use crate::trees::types::Tree;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 0.20s
[INFO] running `Command { std: "docker" "inspect" "3035812aa5dd087bdf44ea7d47014937a8736d791d87d0c19f25ac2dd749769f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3035812aa5dd087bdf44ea7d47014937a8736d791d87d0c19f25ac2dd749769f", kill_on_drop: false }`
[INFO] [stdout] 3035812aa5dd087bdf44ea7d47014937a8736d791d87d0c19f25ac2dd749769f