[INFO] updating cached repository frafra/brutegol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/frafra/brutegol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/frafra/brutegol" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/frafra/brutegol"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/frafra/brutegol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/frafra/brutegol" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/frafra/brutegol"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/frafra/brutegol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a91dd151d1bcf4f0aff05d26506e32b6fd1879a5
[INFO] sha for GitHub repo frafra/brutegol: a91dd151d1bcf4f0aff05d26506e32b6fd1879a5
[INFO] validating manifest of frafra/brutegol on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of frafra/brutegol on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing frafra/brutegol
[INFO] finished frobbing frafra/brutegol
[INFO] frobbed toml for frafra/brutegol written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/frafra/brutegol/Cargo.toml
[INFO] started frobbing frafra/brutegol
[INFO] finished frobbing frafra/brutegol
[INFO] frobbed toml for frafra/brutegol written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/frafra/brutegol/Cargo.toml
[INFO] crate frafra/brutegol already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking frafra/brutegol against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/frafra/brutegol:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e07418985df10e494089fcfa0a537e93300504b1567445b7da087227e8884b43
[INFO] running `"docker" "start" "-a" "e07418985df10e494089fcfa0a537e93300504b1567445b7da087227e8884b43"`
[INFO] [stderr]     Checking brutegol v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/main.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn mirror_horizontal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                    ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/main.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                                ^^^^ help: consider prefixing with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn mirror_diagonal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                    ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/main.rs:116:27
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                           ^^^^ help: consider prefixing with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `columns`
[INFO] [stderr]    --> src/main.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                                        ^^^^^^^ help: consider prefixing with an underscore: `_columns`
[INFO] [stderr] 
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/main.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn mirror_horizontal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                    ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/main.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn mirror_vertical(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                                ^^^^ help: consider prefixing with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn mirror_diagonal(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                    ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/main.rs:116:27
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                           ^^^^ help: consider prefixing with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `columns`
[INFO] [stderr]    --> src/main.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn rotate_180(len: usize, rows: usize, columns: usize, i: usize) -> usize {
[INFO] [stderr]     |                                        ^^^^^^^ help: consider prefixing with an underscore: `_columns`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `"docker" "inspect" "e07418985df10e494089fcfa0a537e93300504b1567445b7da087227e8884b43"`
[INFO] running `"docker" "rm" "-f" "e07418985df10e494089fcfa0a537e93300504b1567445b7da087227e8884b43"`
[INFO] [stdout] e07418985df10e494089fcfa0a537e93300504b1567445b7da087227e8884b43