[INFO] updating cached repository terakilobyte/rustsweeper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/terakilobyte/rustsweeper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/terakilobyte/rustsweeper" "work/ex/beta-1.38-1/sources/1.37.0/gh/terakilobyte/rustsweeper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/terakilobyte/rustsweeper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/terakilobyte/rustsweeper" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terakilobyte/rustsweeper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terakilobyte/rustsweeper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c4ca567855b724ee7891093e9f8e3a636ebbba4
[INFO] sha for GitHub repo terakilobyte/rustsweeper: 7c4ca567855b724ee7891093e9f8e3a636ebbba4
[INFO] validating manifest of terakilobyte/rustsweeper on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of terakilobyte/rustsweeper on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing terakilobyte/rustsweeper
[INFO] finished frobbing terakilobyte/rustsweeper
[INFO] frobbed toml for terakilobyte/rustsweeper written to work/ex/beta-1.38-1/sources/1.37.0/gh/terakilobyte/rustsweeper/Cargo.toml
[INFO] started frobbing terakilobyte/rustsweeper
[INFO] finished frobbing terakilobyte/rustsweeper
[INFO] frobbed toml for terakilobyte/rustsweeper written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terakilobyte/rustsweeper/Cargo.toml
[INFO] crate terakilobyte/rustsweeper already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing terakilobyte/rustsweeper against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terakilobyte/rustsweeper:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b9f0929a4658bf072676c23075f1953b4b1dcd55c8818c2fb6278a1ec1691134
[INFO] running `"docker" "start" "-a" "b9f0929a4658bf072676c23075f1953b4b1dcd55c8818c2fb6278a1ec1691134"`
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.83
[INFO] [stderr]    Compiling nalgebra v0.14.4
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling twox-hash v1.1.2
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling cpal v0.8.2
[INFO] [stderr]    Compiling zip v0.3.3
[INFO] [stderr]    Compiling gfx_glyph v0.10.2
[INFO] [stderr]    Compiling gfx_window_sdl v0.8.0
[INFO] [stderr]    Compiling rodio v0.7.0
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.14.4/src/core/cg.rs:292:44
[INFO] [stderr]     |
[INFO] [stderr] 292 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling ggez v0.4.4
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 42s
[INFO] running `"docker" "inspect" "b9f0929a4658bf072676c23075f1953b4b1dcd55c8818c2fb6278a1ec1691134"`
[INFO] running `"docker" "rm" "-f" "b9f0929a4658bf072676c23075f1953b4b1dcd55c8818c2fb6278a1ec1691134"`
[INFO] [stdout] b9f0929a4658bf072676c23075f1953b4b1dcd55c8818c2fb6278a1ec1691134
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terakilobyte/rustsweeper:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] db0f50db3d1d9d0873b687f87f03437b6ae7c6a6fe64e2ab748993494ca7d84a
[INFO] running `"docker" "start" "-a" "db0f50db3d1d9d0873b687f87f03437b6ae7c6a6fe64e2ab748993494ca7d84a"`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `"docker" "inspect" "db0f50db3d1d9d0873b687f87f03437b6ae7c6a6fe64e2ab748993494ca7d84a"`
[INFO] running `"docker" "rm" "-f" "db0f50db3d1d9d0873b687f87f03437b6ae7c6a6fe64e2ab748993494ca7d84a"`
[INFO] [stdout] db0f50db3d1d9d0873b687f87f03437b6ae7c6a6fe64e2ab748993494ca7d84a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terakilobyte/rustsweeper:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 7c5c224684bcbc5c1d72161a9e6a54751c39a7c594ff629aa611349ba0178cb0
[INFO] running `"docker" "start" "-a" "7c5c224684bcbc5c1d72161a9e6a54751c39a7c594ff629aa611349ba0178cb0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minesweeper-34779b470b2411c6
[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" "7c5c224684bcbc5c1d72161a9e6a54751c39a7c594ff629aa611349ba0178cb0"`
[INFO] running `"docker" "rm" "-f" "7c5c224684bcbc5c1d72161a9e6a54751c39a7c594ff629aa611349ba0178cb0"`
[INFO] [stdout] 7c5c224684bcbc5c1d72161a9e6a54751c39a7c594ff629aa611349ba0178cb0