[INFO] cloning repository https://github.com/Bokayy/vec_diff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bokayy/vec_diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBokayy%2Fvec_diff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBokayy%2Fvec_diff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10cc765792d9945bdb6e873db36243b1dd3d886f
[INFO] checking Bokayy/vec_diff against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBokayy%2Fvec_diff" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Bokayy/vec_diff
[INFO] finished tweaking git repo https://github.com/Bokayy/vec_diff
[INFO] tweaked toml for git repo https://github.com/Bokayy/vec_diff written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bokayy/vec_diff on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Bokayy/vec_diff 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a81d67cc06a8f518389db79ba723c456e0f9a068cc4f6bc182c0c7b5950f8f90
[INFO] running `Command { std: "docker" "start" "-a" "a81d67cc06a8f518389db79ba723c456e0f9a068cc4f6bc182c0c7b5950f8f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a81d67cc06a8f518389db79ba723c456e0f9a068cc4f6bc182c0c7b5950f8f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a81d67cc06a8f518389db79ba723c456e0f9a068cc4f6bc182c0c7b5950f8f90", kill_on_drop: false }`
[INFO] [stdout] a81d67cc06a8f518389db79ba723c456e0f9a068cc4f6bc182c0c7b5950f8f90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d1dbd66dda98a0ccd290081d5b159f19daaffbcfd1af7db34019a000188057
[INFO] running `Command { std: "docker" "start" "-a" "73d1dbd66dda98a0ccd290081d5b159f19daaffbcfd1af7db34019a000188057", kill_on_drop: false }`
[INFO] [stderr]     Checking vec_diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0107]: struct takes at least 1 generic argument but 0 generic arguments were supplied
[INFO] [stdout]  --> src/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut final_vec: Vec<> = vec![];
[INFO] [stdout]   |                        ^^^ expected at least 1 generic argument
[INFO] [stdout]   |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut final_vec: Vec<T> = vec![];
[INFO] [stdout]   |                            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vec_diff` (bin "vec_diff" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0107]: struct takes at least 1 generic argument but 0 generic arguments were supplied
[INFO] [stdout]  --> src/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut final_vec: Vec<> = vec![];
[INFO] [stdout]   |                        ^^^ expected at least 1 generic argument
[INFO] [stdout]   |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut final_vec: Vec<T> = vec![];
[INFO] [stdout]   |                            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vec_diff` (bin "vec_diff") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "73d1dbd66dda98a0ccd290081d5b159f19daaffbcfd1af7db34019a000188057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d1dbd66dda98a0ccd290081d5b159f19daaffbcfd1af7db34019a000188057", kill_on_drop: false }`
[INFO] [stdout] 73d1dbd66dda98a0ccd290081d5b159f19daaffbcfd1af7db34019a000188057
