[INFO] cloning repository alburtwang/leetcode
[INFO] running `"git" "clone" "--bare" "git://github.com/alburtwang/leetcode.git" "work/cache/sources/gh/alburtwang/leetcode"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/alburtwang/leetcode'...
[INFO] running `"git" "clone" "work/cache/sources/gh/alburtwang/leetcode" "work/ex/beta-1.37-6/sources/1.36.0/gh/alburtwang/leetcode"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alburtwang/leetcode'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alburtwang/leetcode" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alburtwang/leetcode"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alburtwang/leetcode'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3135de4080ad64074fc327d04442108f18d3698
[INFO] sha for GitHub repo alburtwang/leetcode: e3135de4080ad64074fc327d04442108f18d3698
[INFO] validating manifest of alburtwang/leetcode on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alburtwang/leetcode on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alburtwang/leetcode
[INFO] finished frobbing alburtwang/leetcode
[INFO] frobbed toml for alburtwang/leetcode written to work/ex/beta-1.37-6/sources/1.36.0/gh/alburtwang/leetcode/Cargo.toml
[INFO] started frobbing alburtwang/leetcode
[INFO] finished frobbing alburtwang/leetcode
[INFO] frobbed toml for alburtwang/leetcode written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alburtwang/leetcode/Cargo.toml
[INFO] crate alburtwang/leetcode already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing alburtwang/leetcode against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alburtwang/leetcode:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 422e1cd7bb8934b3def56b7ea3a3edf27f79d13439e335b78e204cc8b2165280
[INFO] running `"docker" "start" "-a" "422e1cd7bb8934b3def56b7ea3a3edf27f79d13439e335b78e204cc8b2165280"`
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `morsesWord` should have a snake case name
[INFO] [stderr]   --> src/bin/804.rs:13:17
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let mut morsesWord = HashMap::new();
[INFO] [stderr]    |                 ^^^^^^^^^^ help: convert the identifier to snake case: `morses_word`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `983`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/bin/983.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `leetcode`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/bin/1021.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Solution {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_outer_parentheses`
[INFO] [stderr]  --> src/bin/1021.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     pub fn remove_outer_parentheses(s: String) -> String {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "422e1cd7bb8934b3def56b7ea3a3edf27f79d13439e335b78e204cc8b2165280"`
[INFO] running `"docker" "rm" "-f" "422e1cd7bb8934b3def56b7ea3a3edf27f79d13439e335b78e204cc8b2165280"`
[INFO] [stdout] 422e1cd7bb8934b3def56b7ea3a3edf27f79d13439e335b78e204cc8b2165280