[INFO] updating cached repository camccar/Euler11
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/camccar/Euler11
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/camccar/Euler11" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camccar/Euler11"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camccar/Euler11'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/camccar/Euler11" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camccar/Euler11"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camccar/Euler11'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 150f98cced1e3bc28692522d9dbd1f4c501230f9
[INFO] sha for GitHub repo camccar/Euler11: 150f98cced1e3bc28692522d9dbd1f4c501230f9
[INFO] validating manifest of camccar/Euler11 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 camccar/Euler11 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 camccar/Euler11
[INFO] finished frobbing camccar/Euler11
[INFO] frobbed toml for camccar/Euler11 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/camccar/Euler11/Cargo.toml
[INFO] started frobbing camccar/Euler11
[INFO] finished frobbing camccar/Euler11
[INFO] frobbed toml for camccar/Euler11 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camccar/Euler11/Cargo.toml
[INFO] crate camccar/Euler11 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking camccar/Euler11 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/camccar/Euler11:/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] 85b93ea8b45d9b061377058d262dabc15d05d11aa51392c7be6a0a9de7ffc84a
[INFO] running `"docker" "start" "-a" "85b93ea8b45d9b061377058d262dabc15d05d11aa51392c7be6a0a9de7ffc84a"`
[INFO] [stderr]     Checking problem11 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `largest`
[INFO] [stderr]  --> src/main.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut largest = 0;
[INFO] [stderr]   |             ^^^^^^^ help: consider prefixing with an underscore: `_largest`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread1`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let thread1 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread2`
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let thread2 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread3`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let thread3 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread4`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let thread4 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `largest`
[INFO] [stderr]  --> src/main.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut largest = 0;
[INFO] [stderr]   |             ^^^^^^^ help: consider prefixing with an underscore: `_largest`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread1`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let thread1 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread2`
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let thread2 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread3`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let thread3 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread4`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let thread4 = thread::spawn(move|| {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_thread4`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut largest = 0;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut largest = 0;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "85b93ea8b45d9b061377058d262dabc15d05d11aa51392c7be6a0a9de7ffc84a"`
[INFO] running `"docker" "rm" "-f" "85b93ea8b45d9b061377058d262dabc15d05d11aa51392c7be6a0a9de7ffc84a"`
[INFO] [stdout] 85b93ea8b45d9b061377058d262dabc15d05d11aa51392c7be6a0a9de7ffc84a