[INFO] updating cached repository snoyberg/lightsout-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/snoyberg/lightsout-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/snoyberg/lightsout-rs" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/snoyberg/lightsout-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/snoyberg/lightsout-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/snoyberg/lightsout-rs" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/snoyberg/lightsout-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/snoyberg/lightsout-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 76008bccf87b0685164b2da45eeaf82f440a9de8
[INFO] sha for GitHub repo snoyberg/lightsout-rs: 76008bccf87b0685164b2da45eeaf82f440a9de8
[INFO] validating manifest of snoyberg/lightsout-rs 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 snoyberg/lightsout-rs 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 snoyberg/lightsout-rs
[INFO] finished frobbing snoyberg/lightsout-rs
[INFO] frobbed toml for snoyberg/lightsout-rs written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/snoyberg/lightsout-rs/Cargo.toml
[INFO] started frobbing snoyberg/lightsout-rs
[INFO] finished frobbing snoyberg/lightsout-rs
[INFO] frobbed toml for snoyberg/lightsout-rs written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/snoyberg/lightsout-rs/Cargo.toml
[INFO] crate snoyberg/lightsout-rs 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] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking snoyberg/lightsout-rs against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-1/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/snoyberg/lightsout-rs:/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] 219c0c6f25818e51d8785d1c31cc5e522accc70ecfccf26f69b0d321d7ee7a51
[INFO] running `"docker" "start" "-a" "219c0c6f25818e51d8785d1c31cc5e522accc70ecfccf26f69b0d321d7ee7a51"`
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.2
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.2
[INFO] [stderr]    Compiling stdweb v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]     Checking lightsout v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `clone` found for type `Game` in the current scope
[INFO] [stderr]    --> src/main.rs:346:31
[INFO] [stderr]     |
[INFO] [stderr] 147 | struct Game {
[INFO] [stderr]     | ----------- method `clone` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 346 |         let mut game2 = game1.clone();
[INFO] [stderr]     |                               ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr]     = note: the following trait defines an item `clone`, perhaps you need to implement it:
[INFO] [stderr]             candidate #1: `std::clone::Clone`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `lightsout`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: method is never used: `new_random`
[INFO] [stderr]    --> src/main.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn new_random<R: rand::Rng>(difficulty: usize, rng: &mut R) -> Game {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `all_off`
[INFO] [stderr]    --> src/main.rs:220:5
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn all_off(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_usize`
[INFO] [stderr]    --> src/main.rs:258:1
[INFO] [stderr]     |
[INFO] [stderr] 258 | fn read_usize(buffer: &mut String, stdin: &std::io::Stdin, stdout: &std::io::Stdout, label: &str) -> Result<usize, std::io::Error> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "219c0c6f25818e51d8785d1c31cc5e522accc70ecfccf26f69b0d321d7ee7a51"`
[INFO] running `"docker" "rm" "-f" "219c0c6f25818e51d8785d1c31cc5e522accc70ecfccf26f69b0d321d7ee7a51"`
[INFO] [stdout] 219c0c6f25818e51d8785d1c31cc5e522accc70ecfccf26f69b0d321d7ee7a51