[INFO] updating cached repository https://github.com/stisol/rustsweeper
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2d65d16ff094b636ccd815dd6448a5438f00057
[INFO] testing stisol/rustsweeper against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstisol%2Frustsweeper" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stisol/rustsweeper on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/stisol/rustsweeper
[INFO] finished tweaking git repo https://github.com/stisol/rustsweeper
[INFO] tweaked toml for git repo https://github.com/stisol/rustsweeper written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/stisol/rustsweeper already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 70390de8a45c4a419a7100ed12d83e3c9e75902b04e68203672b080d0a6f15ad
[INFO] running `"docker" "start" "-a" "70390de8a45c4a419a7100ed12d83e3c9e75902b04e68203672b080d0a6f15ad"`
[INFO] [stderr]    Compiling odds v0.2.25
[INFO] [stderr]    Compiling linked-hash-map v0.0.10
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling shared_library v0.1.7
[INFO] [stderr]    Compiling vecmath v0.3.0
[INFO] [stderr]    Compiling pistoncore-input v0.18.0
[INFO] [stderr]    Compiling glutin v0.9.2
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]    Compiling png v0.8.0
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling piston2d-graphics v0.21.1
[INFO] [stderr]    Compiling nodrop v0.1.9
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempfile v2.1.6
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling arrayvec v0.3.23
[INFO] [stderr]    Compiling pistoncore-window v0.27.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling pistoncore-event_loop v0.32.0
[INFO] [stderr]    Compiling rusttype v0.2.1
[INFO] [stderr]    Compiling piston v0.32.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.14.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.45.0
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.9.9
[INFO] [stderr]    Compiling wayland-client v0.9.9
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling wayland-window v0.6.1
[INFO] [stderr]    Compiling winit v0.7.5
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.38.0
[INFO] [stderr]    Compiling rustsweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/gameboard.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         use rand;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.84s
[INFO] running `"docker" "inspect" "70390de8a45c4a419a7100ed12d83e3c9e75902b04e68203672b080d0a6f15ad"`
[INFO] running `"docker" "rm" "-f" "70390de8a45c4a419a7100ed12d83e3c9e75902b04e68203672b080d0a6f15ad"`
[INFO] [stdout] 70390de8a45c4a419a7100ed12d83e3c9e75902b04e68203672b080d0a6f15ad
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] ff89f28b5d6259a11ff12eebd8f8460ea2f6c9d6d0c19331a727a52844aa0261
[INFO] running `"docker" "start" "-a" "ff89f28b5d6259a11ff12eebd8f8460ea2f6c9d6d0c19331a727a52844aa0261"`
[INFO] [stderr]    Compiling rustsweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/gameboard.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         use rand;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "ff89f28b5d6259a11ff12eebd8f8460ea2f6c9d6d0c19331a727a52844aa0261"`
[INFO] running `"docker" "rm" "-f" "ff89f28b5d6259a11ff12eebd8f8460ea2f6c9d6d0c19331a727a52844aa0261"`
[INFO] [stdout] ff89f28b5d6259a11ff12eebd8f8460ea2f6c9d6d0c19331a727a52844aa0261
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] d58af283e8a36d29a639bd9ab8c394ad3bb5935afc50c37ec263d4f75ee0bbd5
[INFO] running `"docker" "start" "-a" "d58af283e8a36d29a639bd9ab8c394ad3bb5935afc50c37ec263d4f75ee0bbd5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustsweeper-0e257b906eb2ab56
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d58af283e8a36d29a639bd9ab8c394ad3bb5935afc50c37ec263d4f75ee0bbd5"`
[INFO] running `"docker" "rm" "-f" "d58af283e8a36d29a639bd9ab8c394ad3bb5935afc50c37ec263d4f75ee0bbd5"`
[INFO] [stdout] d58af283e8a36d29a639bd9ab8c394ad3bb5935afc50c37ec263d4f75ee0bbd5