[INFO] updating cached repository https://github.com/akrisrn/leet-code-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e7052d00dd3095f98cb9ddf4e27b88366e9282b
[INFO] testing akrisrn/leet-code-rust against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakrisrn%2Fleet-code-rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akrisrn/leet-code-rust on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/akrisrn/leet-code-rust
[INFO] finished tweaking git repo https://github.com/akrisrn/leet-code-rust
[INFO] tweaked toml for git repo https://github.com/akrisrn/leet-code-rust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/akrisrn/leet-code-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1357b06a2fe2f25acc999adf051e27f32ccd0796e126cbd04022e74db4a7c1b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1357b06a2fe2f25acc999adf051e27f32ccd0796e126cbd04022e74db4a7c1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1357b06a2fe2f25acc999adf051e27f32ccd0796e126cbd04022e74db4a7c1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1357b06a2fe2f25acc999adf051e27f32ccd0796e126cbd04022e74db4a7c1b6", kill_on_drop: false }`
[INFO] [stdout] 1357b06a2fe2f25acc999adf051e27f32ccd0796e126cbd04022e74db4a7c1b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c249d6d348fe01e777fdf8b598734d72ae6f41ac8e6faafc0e116b535309aa71
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c249d6d348fe01e777fdf8b598734d72ae6f41ac8e6faafc0e116b535309aa71", kill_on_drop: false }`
[INFO] [stderr]    Compiling leet-code-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/solution/easy/p83_remove_duplicates_from_sorted_list.rs:16:62
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn delete_duplicates(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {}
[INFO] [stdout]    |            -----------------                                 ^^^^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::option::Option<std::boxed::Box<solution::easy::p83_remove_duplicates_from_sorted_list::ListNode>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/solution/easy/p88_merge_sorted_array.rs:22:81
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn merge(nums1: &mut Vec<i32>, m: i32, nums2: &mut Vec<i32>, n: i32) -> Vec<i32> {}
[INFO] [stdout]    |            -----                                                                ^^^^^^^^ expected struct `std::vec::Vec`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `std::vec::Vec<i32>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leet-code-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c249d6d348fe01e777fdf8b598734d72ae6f41ac8e6faafc0e116b535309aa71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c249d6d348fe01e777fdf8b598734d72ae6f41ac8e6faafc0e116b535309aa71", kill_on_drop: false }`
[INFO] [stdout] c249d6d348fe01e777fdf8b598734d72ae6f41ac8e6faafc0e116b535309aa71