[INFO] cloning repository https://github.com/AlterionX/minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlterionX/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlterionX%2Fminesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlterionX%2Fminesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] baed8b523a8809f71d0f647dfc454fee78a7d44b
[INFO] testing AlterionX/minesweeper against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlterionX%2Fminesweeper" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlterionX/minesweeper on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlterionX/minesweeper
[INFO] finished tweaking git repo https://github.com/AlterionX/minesweeper
[INFO] tweaked toml for git repo https://github.com/AlterionX/minesweeper written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/AlterionX/minesweeper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f513d9fd8d10d654ae6652b4954cd8510da808b2fefc51c7c4e69246c49aee66
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f513d9fd8d10d654ae6652b4954cd8510da808b2fefc51c7c4e69246c49aee66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f513d9fd8d10d654ae6652b4954cd8510da808b2fefc51c7c4e69246c49aee66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f513d9fd8d10d654ae6652b4954cd8510da808b2fefc51c7c4e69246c49aee66", kill_on_drop: false }`
[INFO] [stdout] f513d9fd8d10d654ae6652b4954cd8510da808b2fefc51c7c4e69246c49aee66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 681f1dcfe06ff58260098c1cd86ed2e6b6051af3226296b76b42b12ae671345d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "681f1dcfe06ff58260098c1cd86ed2e6b6051af3226296b76b42b12ae671345d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RangeBounds`
[INFO] [stdout]  --> src/solver.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Bound, RangeBounds};
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zero_locs`
[INFO] [stdout]    --> src/solver.rs:307:31
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let StrippedRegions { zero_locs, regions } = self.strip_zero_regions_from(regions);
[INFO] [stdout]     |                               ^^^^^^^^^ help: try ignoring the field: `zero_locs: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `regions`
[INFO] [stdout]    --> src/solver.rs:307:42
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let StrippedRegions { zero_locs, regions } = self.strip_zero_regions_from(regions);
[INFO] [stdout]     |                                          ^^^^^^^ help: try ignoring the field: `regions: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `split_vecs`
[INFO] [stdout]   --> src/solver.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn split_vecs<T: PartialEq>(aa: Vec<T>, bb: Vec<T>) -> (Vec<T>, Vec<T>, Vec<T>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `map_bound`
[INFO] [stdout]   --> src/solver.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn map_bound<T, S, F>(b: Bound<T>, f: F) -> Bound<S>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `segment_regions`
[INFO] [stdout]    --> src/solver.rs:202:8
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn segment_regions(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `empty`
[INFO] [stdout]    --> src/solver.rs:299:5
[INFO] [stdout]     |
[INFO] [stdout] 299 |     empty: Vec<(usize, usize)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mines`
[INFO] [stdout]    --> src/solver.rs:300:5
[INFO] [stdout]     |
[INFO] [stdout] 300 |     mines: Vec<(usize, usize)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.97s
[INFO] running `Command { std: "docker" "inspect" "681f1dcfe06ff58260098c1cd86ed2e6b6051af3226296b76b42b12ae671345d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681f1dcfe06ff58260098c1cd86ed2e6b6051af3226296b76b42b12ae671345d", kill_on_drop: false }`
[INFO] [stdout] 681f1dcfe06ff58260098c1cd86ed2e6b6051af3226296b76b42b12ae671345d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a558054a601f4306f3ec1856c0499adaa00770b94f869607da5524931e935bb
[INFO] running `Command { std: "docker" "start" "-a" "5a558054a601f4306f3ec1856c0499adaa00770b94f869607da5524931e935bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `SmallRngs` in `rngs`
[INFO] [stdout]    --> src/board.rs:392:52
[INFO] [stdout]     |
[INFO] [stdout] 392 |         let board = Board::new(20, 20, rand::rngs::SmallRngs::from_entropy());
[INFO] [stdout]     |                                                    ^^^^^^^^^ could not find `SmallRngs` in `rngs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 3 arguments were supplied
[INFO] [stdout]    --> src/board.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn new(dim: Dim, num_mines: u64) -> Result<Self, ()> {
[INFO] [stdout]     |     -------------------------------------------------------- defined here
[INFO] [stdout] ...
[INFO] [stdout] 392 |         let board = Board::new(20, 20, rand::rngs::SmallRngs::from_entropy());
[INFO] [stdout]     |                     ^^^^^^^^^^ --  --  ------------------------------------- supplied 3 arguments
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     expected 2 arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RangeBounds`
[INFO] [stdout]  --> src/solver.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Bound, RangeBounds};
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minesweeper`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5a558054a601f4306f3ec1856c0499adaa00770b94f869607da5524931e935bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a558054a601f4306f3ec1856c0499adaa00770b94f869607da5524931e935bb", kill_on_drop: false }`
[INFO] [stdout] 5a558054a601f4306f3ec1856c0499adaa00770b94f869607da5524931e935bb