[INFO] cloning repository https://github.com/0xlunar/leetcode_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xlunar/leetcode_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlunar%2Fleetcode_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlunar%2Fleetcode_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bea9ba0ead2a62e256c5efc12031ba93baf21022
[INFO] testing 0xlunar/leetcode_rs against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlunar%2Fleetcode_rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xlunar/leetcode_rs
[INFO] finished tweaking git repo https://github.com/0xlunar/leetcode_rs
[INFO] tweaked toml for git repo https://github.com/0xlunar/leetcode_rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xlunar/leetcode_rs on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xlunar/leetcode_rs 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc5a9d778ae384d33f71b8b734cc10d7ee4130ddc0e6759499cf8c34190f3b82
[INFO] running `Command { std: "docker" "start" "-a" "dc5a9d778ae384d33f71b8b734cc10d7ee4130ddc0e6759499cf8c34190f3b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc5a9d778ae384d33f71b8b734cc10d7ee4130ddc0e6759499cf8c34190f3b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5a9d778ae384d33f71b8b734cc10d7ee4130ddc0e6759499cf8c34190f3b82", kill_on_drop: false }`
[INFO] [stdout] dc5a9d778ae384d33f71b8b734cc10d7ee4130ddc0e6759499cf8c34190f3b82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cacbb85727206da9bce3e647cbade7330729ec091cb123d5d2392358ce17543
[INFO] running `Command { std: "docker" "start" "-a" "7cacbb85727206da9bce3e647cbade7330729ec091cb123d5d2392358ce17543", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Solution` in this scope
[INFO] [stdout]   --> src/reverse_polish_notation.rs:1:6
[INFO] [stdout]    |
[INFO] [stdout] 1  | impl Solution {
[INFO] [stdout]    |      ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] note: these structs exist but are inaccessible
[INFO] [stdout]   --> src/contains_duplicate.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::contains_duplicate::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/group_anagrams.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::group_anagrams::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/is_anagram.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::is_anagram::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/longest_consecutive.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::longest_consecutive::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/product_of_array_except_self.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::product_of_array_except_self::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/top_k_frequent_elements.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::top_k_frequent_elements::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/two_sum.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::two_sum::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/two_sum_ii.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::two_sum_ii::Solution`: not accessible
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/valid_sudoku.rs:54:1
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Solution {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `crate::valid_sudoku::Solution`: not accessible
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::median_of_two_sorted_arrays::Solution;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::valid_palindrome::Solution;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::valid_parentheses::Solution;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/min_stack.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut sorted = self.stack.to_owned();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode` (bin "leetcode") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7cacbb85727206da9bce3e647cbade7330729ec091cb123d5d2392358ce17543", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cacbb85727206da9bce3e647cbade7330729ec091cb123d5d2392358ce17543", kill_on_drop: false }`
[INFO] [stdout] 7cacbb85727206da9bce3e647cbade7330729ec091cb123d5d2392358ce17543
