[INFO] updating cached repository dmitmel/pentomino101
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dmitmel/pentomino101
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dmitmel/pentomino101" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/dmitmel/pentomino101"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/dmitmel/pentomino101'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dmitmel/pentomino101" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dmitmel/pentomino101"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dmitmel/pentomino101'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 476d2a5a5da3209e1a2caf6e1b2cb674723a3ba5
[INFO] sha for GitHub repo dmitmel/pentomino101: 476d2a5a5da3209e1a2caf6e1b2cb674723a3ba5
[INFO] validating manifest of dmitmel/pentomino101 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dmitmel/pentomino101 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dmitmel/pentomino101
[INFO] finished frobbing dmitmel/pentomino101
[INFO] frobbed toml for dmitmel/pentomino101 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/dmitmel/pentomino101/Cargo.toml
[INFO] started frobbing dmitmel/pentomino101
[INFO] finished frobbing dmitmel/pentomino101
[INFO] frobbed toml for dmitmel/pentomino101 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dmitmel/pentomino101/Cargo.toml
[INFO] crate dmitmel/pentomino101 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dmitmel/pentomino101 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/dmitmel/pentomino101:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d9b2b9a651283ac7a788fdcba96fdebb11e51bf1737bf8d076bfd2fa2a0a1dc4
[INFO] running `"docker" "start" "-a" "d9b2b9a651283ac7a788fdcba96fdebb11e51bf1737bf8d076bfd2fa2a0a1dc4"`
[INFO] [stderr]    Compiling num-complex v0.2.2
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking nalgebra v0.16.13
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.16.13/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking nalgebra-glm v0.1.3
[INFO] [stderr]     Checking pentomino101 v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/grid.rs:76:10
[INFO] [stderr]    |
[INFO] [stderr] 76 |     for (index, color) in picture.trim_matches('\n').chars().enumerate() {
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_time`
[INFO] [stderr]    --> src/grid.rs:163:28
[INFO] [stderr]     |
[INFO] [stderr] 163 |   pub fn update(&mut self, delta_time: Time) {}
[INFO] [stderr]     |                            ^^^^^^^^^^ help: consider prefixing with an underscore: `_delta_time`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/grid.rs:76:10
[INFO] [stderr]    |
[INFO] [stderr] 76 |     for (index, color) in picture.trim_matches('\n').chars().enumerate() {
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_time`
[INFO] [stderr]    --> src/grid.rs:163:28
[INFO] [stderr]     |
[INFO] [stderr] 163 |   pub fn update(&mut self, delta_time: Time) {}
[INFO] [stderr]     |                            ^^^^^^^^^^ help: consider prefixing with an underscore: `_delta_time`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.33s
[INFO] running `"docker" "inspect" "d9b2b9a651283ac7a788fdcba96fdebb11e51bf1737bf8d076bfd2fa2a0a1dc4"`
[INFO] running `"docker" "rm" "-f" "d9b2b9a651283ac7a788fdcba96fdebb11e51bf1737bf8d076bfd2fa2a0a1dc4"`
[INFO] [stdout] d9b2b9a651283ac7a788fdcba96fdebb11e51bf1737bf8d076bfd2fa2a0a1dc4