[INFO] cloning repository https://github.com/FakeEmperor/LeetCode [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FakeEmperor/LeetCode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFakeEmperor%2FLeetCode", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFakeEmperor%2FLeetCode'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c919179daf55ca162adfd81b16f882e298b80bfa [INFO] checking FakeEmperor/LeetCode/c919179daf55ca162adfd81b16f882e298b80bfa against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFakeEmperor%2FLeetCode" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FakeEmperor/LeetCode on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/FakeEmperor/LeetCode [INFO] finished tweaking git repo https://github.com/FakeEmperor/LeetCode [INFO] tweaked toml for git repo https://github.com/FakeEmperor/LeetCode written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/FakeEmperor/LeetCode 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 42a128111d1ca3960eeaa544597413ef5d94ebc596a1130698f035e3159c7ebf [INFO] running `Command { std: "docker" "start" "-a" "42a128111d1ca3960eeaa544597413ef5d94ebc596a1130698f035e3159c7ebf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42a128111d1ca3960eeaa544597413ef5d94ebc596a1130698f035e3159c7ebf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42a128111d1ca3960eeaa544597413ef5d94ebc596a1130698f035e3159c7ebf", kill_on_drop: false }` [INFO] [stdout] 42a128111d1ca3960eeaa544597413ef5d94ebc596a1130698f035e3159c7ebf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a7176709ce7a4533fd6e9ca5cbc64bf37123418f119ef66bb12639171c5c6fbf [INFO] running `Command { std: "docker" "start" "-a" "a7176709ce7a4533fd6e9ca5cbc64bf37123418f119ef66bb12639171c5c6fbf", kill_on_drop: false }` [INFO] [stderr] Checking leet_code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/partition_list.rs:43:34 [INFO] [stdout] | [INFO] [stdout] 43 | [&mut left_head, &left_tail] [INFO] [stdout] | ^^^^^^^^^^ types differ in mutability [INFO] [stdout] | [INFO] [stdout] = note: expected mutable reference `&mut Option<_>` [INFO] [stdout] found reference `&&mut Option>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/partition_list.rs:43:34 [INFO] [stdout] | [INFO] [stdout] 43 | [&mut left_head, &left_tail] [INFO] [stdout] | ^^^^^^^^^^ types differ in mutability [INFO] [stdout] | [INFO] [stdout] = note: expected mutable reference `&mut Option<_>` [INFO] [stdout] found reference `&&mut Option>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/partition_list.rs:45:35 [INFO] [stdout] | [INFO] [stdout] 45 | [&mut right_head, &right_tail] [INFO] [stdout] | ^^^^^^^^^^^ types differ in mutability [INFO] [stdout] | [INFO] [stdout] = note: expected mutable reference `&mut Option<_>` [INFO] [stdout] found reference `&&mut Option>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/partition_list.rs:45:35 [INFO] [stdout] | [INFO] [stdout] 45 | [&mut right_head, &right_tail] [INFO] [stdout] | ^^^^^^^^^^^ types differ in mutability [INFO] [stdout] | [INFO] [stdout] = note: expected mutable reference `&mut Option<_>` [INFO] [stdout] found reference `&&mut Option>` [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] [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` (bin "leet_code") due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `leet_code` (bin "leet_code" test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "a7176709ce7a4533fd6e9ca5cbc64bf37123418f119ef66bb12639171c5c6fbf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7176709ce7a4533fd6e9ca5cbc64bf37123418f119ef66bb12639171c5c6fbf", kill_on_drop: false }` [INFO] [stdout] a7176709ce7a4533fd6e9ca5cbc64bf37123418f119ef66bb12639171c5c6fbf