[INFO] updating cached repository ksakiyama/my_first_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ksakiyama/my_first_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ksakiyama/my_first_rust" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/ksakiyama/my_first_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/ksakiyama/my_first_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ksakiyama/my_first_rust" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/ksakiyama/my_first_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/ksakiyama/my_first_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 379fa38916fc3eafbc7031ba21b1cbab75e1257e
[INFO] sha for GitHub repo ksakiyama/my_first_rust: 379fa38916fc3eafbc7031ba21b1cbab75e1257e
[INFO] validating manifest of ksakiyama/my_first_rust on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ksakiyama/my_first_rust on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ksakiyama/my_first_rust
[INFO] finished frobbing ksakiyama/my_first_rust
[INFO] frobbed toml for ksakiyama/my_first_rust written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/ksakiyama/my_first_rust/Cargo.toml
[INFO] started frobbing ksakiyama/my_first_rust
[INFO] finished frobbing ksakiyama/my_first_rust
[INFO] frobbed toml for ksakiyama/my_first_rust written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/ksakiyama/my_first_rust/Cargo.toml
[INFO] crate ksakiyama/my_first_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ksakiyama/my_first_rust against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/ksakiyama/my_first_rust:/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=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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f3611a6772cab29be58d730a8d589a7928e1dbd77c2ebf1f68e7aa00482a5567
[INFO] running `"docker" "start" "-a" "f3611a6772cab29be58d730a8d589a7928e1dbd77c2ebf1f68e7aa00482a5567"`
[INFO] [stderr]     Checking first_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `read_from_file`
[INFO] [stderr]    --> src/main.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn read_from_file() -> Vec<Vec<i32>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_from_file`
[INFO] [stderr]    --> src/main.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn read_from_file() -> Vec<Vec<i32>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `"docker" "inspect" "f3611a6772cab29be58d730a8d589a7928e1dbd77c2ebf1f68e7aa00482a5567"`
[INFO] running `"docker" "rm" "-f" "f3611a6772cab29be58d730a8d589a7928e1dbd77c2ebf1f68e7aa00482a5567"`
[INFO] [stdout] f3611a6772cab29be58d730a8d589a7928e1dbd77c2ebf1f68e7aa00482a5567