Dec 19 08:33:09.900 INFO checking snoyberg/lightsout-rs against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 08:33:09.900 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/snoyberg/lightsout-rs:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:33:10.260 INFO [stdout] 0d12b4904d99d8a81b56c7b363a75230dbb8b71922db52e1fc25866986e6ad4e
Dec 19 08:33:10.266 INFO running `"docker" "start" "-a" "0d12b4904d99d8a81b56c7b363a75230dbb8b71922db52e1fc25866986e6ad4e"`
Dec 19 08:33:11.952 INFO [stderr]    Compiling stdweb-internal-runtime v0.1.2
Dec 19 08:33:11.952 INFO [stderr]    Compiling libc v0.2.44
Dec 19 08:33:11.968 INFO [stderr]    Compiling base-x v0.2.3
Dec 19 08:33:11.968 INFO [stderr]     Checking discard v1.0.4
Dec 19 08:33:11.988 INFO [stderr]    Compiling ryu v0.2.7
Dec 19 08:33:11.988 INFO [stderr]    Compiling stdweb-internal-macros v0.2.2
Dec 19 08:33:11.988 INFO [stderr]    Compiling stdweb v0.4.10
Dec 19 08:33:11.988 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 19 08:33:15.416 INFO [stderr]    Compiling serde_json v1.0.33
Dec 19 08:33:18.880 INFO [stderr]     Checking rand v0.6.1
Dec 19 08:33:30.154 INFO [stderr]    Compiling stdweb-derive v0.5.1
Dec 19 08:33:52.011 INFO [stderr]     Checking lightsout v0.1.0 (/opt/crater/workdir)
Dec 19 08:33:52.812 INFO [stderr] error[E0599]: no method named `clone` found for type `Game` in the current scope
Dec 19 08:33:52.812 INFO [stderr]    --> src/main.rs:346:31
Dec 19 08:33:52.812 INFO [stderr]     |
Dec 19 08:33:52.812 INFO [stderr] 147 | struct Game {
Dec 19 08:33:52.812 INFO [stderr]     | ----------- method `clone` not found for this
Dec 19 08:33:52.812 INFO [stderr] ...
Dec 19 08:33:52.812 INFO [stderr] 346 |         let mut game2 = game1.clone();
Dec 19 08:33:52.812 INFO [stderr]     |                               ^^^^^
Dec 19 08:33:52.812 INFO [stderr]     |
Dec 19 08:33:52.812 INFO [stderr]     = help: items from traits can only be used if the trait is implemented and in scope
Dec 19 08:33:52.812 INFO [stderr]     = note: the following trait defines an item `clone`, perhaps you need to implement it:
Dec 19 08:33:52.812 INFO [stderr]             candidate #1: `std::clone::Clone`
Dec 19 08:33:52.812 INFO [stderr] 
Dec 19 08:33:52.852 INFO [stderr] error: aborting due to previous error
Dec 19 08:33:52.852 INFO [stderr] 
Dec 19 08:33:52.852 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 08:33:52.858 INFO [stderr] warning: method is never used: `new_random`
Dec 19 08:33:52.858 INFO [stderr]    --> src/main.rs:166:5
Dec 19 08:33:52.858 INFO [stderr]     |
Dec 19 08:33:52.858 INFO [stderr] 166 |     fn new_random<R: rand::Rng>(difficulty: usize, rng: &mut R) -> Game {
Dec 19 08:33:52.858 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:33:52.858 INFO [stderr]     |
Dec 19 08:33:52.858 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 08:33:52.858 INFO [stderr] 
Dec 19 08:33:52.858 INFO [stderr] warning: method is never used: `all_off`
Dec 19 08:33:52.858 INFO [stderr]    --> src/main.rs:220:5
Dec 19 08:33:52.858 INFO [stderr]     |
Dec 19 08:33:52.858 INFO [stderr] 220 |     fn all_off(&self) -> bool {
Dec 19 08:33:52.858 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:33:52.858 INFO [stderr] 
Dec 19 08:33:52.858 INFO [stderr] warning: function is never used: `read_usize`
Dec 19 08:33:52.858 INFO [stderr]    --> src/main.rs:258:1
Dec 19 08:33:52.858 INFO [stderr]     |
Dec 19 08:33:52.858 INFO [stderr] 258 | fn read_usize(buffer: &mut String, stdin: &std::io::Stdin, stdout: &std::io::Stdout, label: &str) -> Result<usize, std::io::Error> {
Dec 19 08:33:52.858 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:33:52.858 INFO [stderr] 
Dec 19 08:33:52.884 INFO [stderr] error: Could not compile `lightsout`.
Dec 19 08:33:52.884 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 08:33:52.920 INFO [stderr] error: build failed
Dec 19 08:33:53.741 INFO running `"docker" "inspect" "0d12b4904d99d8a81b56c7b363a75230dbb8b71922db52e1fc25866986e6ad4e"`
Dec 19 08:33:53.940 INFO running `"docker" "rm" "-f" "0d12b4904d99d8a81b56c7b363a75230dbb8b71922db52e1fc25866986e6ad4e"`
Dec 19 08:33:54.216 INFO [stdout] 0d12b4904d99d8a81b56c7b363a75230dbb8b71922db52e1fc25866986e6ad4e