[INFO] updating cached repository fede1024/2048-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fede1024/2048-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fede1024/2048-rust" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/fede1024/2048-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/fede1024/2048-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fede1024/2048-rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/fede1024/2048-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/fede1024/2048-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0384714d89e139523f78d1aa6302e45700b681f5
[INFO] sha for GitHub repo fede1024/2048-rust: 0384714d89e139523f78d1aa6302e45700b681f5
[INFO] validating manifest of fede1024/2048-rust on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fede1024/2048-rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fede1024/2048-rust
[INFO] finished frobbing fede1024/2048-rust
[INFO] frobbed toml for fede1024/2048-rust written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/fede1024/2048-rust/Cargo.toml
[INFO] started frobbing fede1024/2048-rust
[INFO] finished frobbing fede1024/2048-rust
[INFO] frobbed toml for fede1024/2048-rust written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/fede1024/2048-rust/Cargo.toml
[INFO] crate fede1024/2048-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/fede1024/2048-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fede1024/2048-rust against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/fede1024/2048-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 934848eba4611adab60b2c55455e43e60869dbf37d01cd26d8e5eb9b470db552
[INFO] running `"docker" "start" "-a" "934848eba4611adab60b2c55455e43e60869dbf37d01cd26d8e5eb9b470db552"`
[INFO] [stderr]     Checking 2048-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0446]: private type `world::line_world_16::LineWorld16Iter<'a>` in public interface
[INFO] [stderr]    --> src/world/line_world_16.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 73  | struct LineWorld16Iter<'a> {
[INFO] [stderr]     | - `world::line_world_16::LineWorld16Iter<'a>` declared as private
[INFO] [stderr] ...
[INFO] [stderr] 108 |     type Iter = LineWorld16Iter<'a>;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stderr] 
[INFO] [stderr] warning: private type `world::line_world_16::LineWorld16Iter<'a>` in public interface (error E0446)
[INFO] [stderr]    --> src/world/line_world_16.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 | /     fn iterate(&'a self) -> LineWorld16Iter<'a> {
[INFO] [stderr] 133 | |         LineWorld16Iter {
[INFO] [stderr] 134 | |             world: self,
[INFO] [stderr] 135 | |             count: 0,
[INFO] [stderr] 136 | |         }
[INFO] [stderr] 137 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(private_in_public)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HEmpty`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct HEmpty;
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HSum`
[INFO] [stderr]   --> src/main.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | struct HSum;
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0446`.
[INFO] [stderr] error[E0446]: private type `world::line_world_16::LineWorld16Iter<'a>` in public interface
[INFO] [stderr]    --> src/world/line_world_16.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 73  | struct LineWorld16Iter<'a> {
[INFO] [stderr] error: Could not compile `2048-rust`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr]     | - `world::line_world_16::LineWorld16Iter<'a>` declared as private
[INFO] [stderr] ...
[INFO] [stderr] 108 |     type Iter = LineWorld16Iter<'a>;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type
[INFO] [stderr] 
[INFO] [stderr] warning: private type `world::line_world_16::LineWorld16Iter<'a>` in public interface (error E0446)
[INFO] [stderr]    --> src/world/line_world_16.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 | /     fn iterate(&'a self) -> LineWorld16Iter<'a> {
[INFO] [stderr] 133 | |         LineWorld16Iter {
[INFO] [stderr] 134 | |             world: self,
[INFO] [stderr] 135 | |             count: 0,
[INFO] [stderr] 136 | |         }
[INFO] [stderr] 137 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(private_in_public)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HEmpty`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct HEmpty;
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HSum`
[INFO] [stderr]   --> src/main.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | struct HSum;
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0446`.
[INFO] [stderr] error: Could not compile `2048-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "934848eba4611adab60b2c55455e43e60869dbf37d01cd26d8e5eb9b470db552"`
[INFO] running `"docker" "rm" "-f" "934848eba4611adab60b2c55455e43e60869dbf37d01cd26d8e5eb9b470db552"`
[INFO] [stdout] 934848eba4611adab60b2c55455e43e60869dbf37d01cd26d8e5eb9b470db552