[INFO] updating cached repository binarybana/sudok
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/binarybana/sudok
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/binarybana/sudok" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/binarybana/sudok"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/binarybana/sudok'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/binarybana/sudok" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/binarybana/sudok"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/binarybana/sudok'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6fa2f047974a83bf7c71b7f6b7f5e986ce2fc7a
[INFO] sha for GitHub repo binarybana/sudok: f6fa2f047974a83bf7c71b7f6b7f5e986ce2fc7a
[INFO] validating manifest of binarybana/sudok on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of binarybana/sudok on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing binarybana/sudok
[INFO] finished frobbing binarybana/sudok
[INFO] frobbed toml for binarybana/sudok written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/binarybana/sudok/Cargo.toml
[INFO] started frobbing binarybana/sudok
[INFO] finished frobbing binarybana/sudok
[INFO] frobbed toml for binarybana/sudok written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/binarybana/sudok/Cargo.toml
[INFO] crate binarybana/sudok already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking binarybana/sudok against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/binarybana/sudok:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 15e4e7085343bc547e954c4ae10e05faaec610d1362fdd1956df4dc7367b4934
[INFO] running `"docker" "start" "-a" "15e4e7085343bc547e954c4ae10e05faaec610d1362fdd1956df4dc7367b4934"`
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stderr]     Checking sudok v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / lazy_static! {
[INFO] [stderr] 17 | |     static ref NEIGHBORS: Vec<Vec<usize>> = {
[INFO] [stderr] 18 | |         let mut v = Vec::with_capacity(81);
[INFO] [stderr] 19 | |         for i in 0..81 {
[INFO] [stderr] ...  |
[INFO] [stderr] 50 | |     };
[INFO] [stderr] 51 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `singleton`
[INFO] [stderr]  --> src/bitcube.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn singleton(val: usize) -> Cell {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]   --> src/bitcube.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn set(&mut self, index: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / lazy_static! {
[INFO] [stderr] 17 | |     static ref NEIGHBORS: Vec<Vec<usize>> = {
[INFO] [stderr] 18 | |         let mut v = Vec::with_capacity(81);
[INFO] [stderr] 19 | |         for i in 0..81 {
[INFO] [stderr] ...  |
[INFO] [stderr] 50 | |     };
[INFO] [stderr] 51 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.31s
[INFO] running `"docker" "inspect" "15e4e7085343bc547e954c4ae10e05faaec610d1362fdd1956df4dc7367b4934"`
[INFO] running `"docker" "rm" "-f" "15e4e7085343bc547e954c4ae10e05faaec610d1362fdd1956df4dc7367b4934"`
[INFO] [stdout] 15e4e7085343bc547e954c4ae10e05faaec610d1362fdd1956df4dc7367b4934