[INFO] updating cached repository fky2015/newbee_codewar_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fky2015/newbee_codewar_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fky2015/newbee_codewar_rust" "work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/fky2015/newbee_codewar_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/fky2015/newbee_codewar_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fky2015/newbee_codewar_rust" "work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/fky2015/newbee_codewar_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/fky2015/newbee_codewar_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] faa033b80d8e4586e0f38558d735f7a9042381d4
[INFO] sha for GitHub repo fky2015/newbee_codewar_rust: faa033b80d8e4586e0f38558d735f7a9042381d4
[INFO] validating manifest of fky2015/newbee_codewar_rust on toolchain master#7840a0b753a065a41999f1fb6028f67d33e3fdd5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fky2015/newbee_codewar_rust on toolchain try#6a9f0b6cc40687e25f9d772e3b10bab335c63853
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+6a9f0b6cc40687e25f9d772e3b10bab335c63853-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fky2015/newbee_codewar_rust
[INFO] finished frobbing fky2015/newbee_codewar_rust
[INFO] frobbed toml for fky2015/newbee_codewar_rust written to work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/fky2015/newbee_codewar_rust/Cargo.toml
[INFO] started frobbing fky2015/newbee_codewar_rust
[INFO] finished frobbing fky2015/newbee_codewar_rust
[INFO] frobbed toml for fky2015/newbee_codewar_rust written to work/ex/pr-60466/sources/try#6a9f0b6cc40687e25f9d772e3b10bab335c63853/gh/fky2015/newbee_codewar_rust/Cargo.toml
[INFO] crate fky2015/newbee_codewar_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+6a9f0b6cc40687e25f9d772e3b10bab335c63853-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fky2015/newbee_codewar_rust against master#7840a0b753a065a41999f1fb6028f67d33e3fdd5 for pr-60466
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60466/worker-7/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60466/sources/master#7840a0b753a065a41999f1fb6028f67d33e3fdd5/gh/fky2015/newbee_codewar_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+7840a0b753a065a41999f1fb6028f67d33e3fdd5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3333dc854ae08a8e1308aec4df2f7d639fe6f02b1032140cba962a74b447b918
[INFO] running `"docker" "start" "-a" "3333dc854ae08a8e1308aec4df2f7d639fe6f02b1032140cba962a74b447b918"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Checking repo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `repo`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/main.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 `repo`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     for j in 0..n {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3333dc854ae08a8e1308aec4df2f7d639fe6f02b1032140cba962a74b447b918"`
[INFO] running `"docker" "rm" "-f" "3333dc854ae08a8e1308aec4df2f7d639fe6f02b1032140cba962a74b447b918"`
[INFO] [stdout] 3333dc854ae08a8e1308aec4df2f7d639fe6f02b1032140cba962a74b447b918