[INFO] updating cached repository Lytigas/drive-sim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lytigas/drive-sim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lytigas/drive-sim" "work/ex/beta-1.38-1/sources/1.37.0/gh/Lytigas/drive-sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Lytigas/drive-sim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lytigas/drive-sim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lytigas/drive-sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lytigas/drive-sim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6bd80dc0df269d084e5e2fe3294ad05e54c520e5
[INFO] sha for GitHub repo Lytigas/drive-sim: 6bd80dc0df269d084e5e2fe3294ad05e54c520e5
[INFO] validating manifest of Lytigas/drive-sim 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 Lytigas/drive-sim 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 Lytigas/drive-sim
[INFO] finished frobbing Lytigas/drive-sim
[INFO] frobbed toml for Lytigas/drive-sim written to work/ex/beta-1.38-1/sources/1.37.0/gh/Lytigas/drive-sim/Cargo.toml
[INFO] started frobbing Lytigas/drive-sim
[INFO] finished frobbing Lytigas/drive-sim
[INFO] frobbed toml for Lytigas/drive-sim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lytigas/drive-sim/Cargo.toml
[INFO] crate Lytigas/drive-sim 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 Lytigas/drive-sim against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lytigas/drive-sim:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 98869aa15969789fa526060128b964661dbb707114adf7480b470941a70a303c
[INFO] running `"docker" "start" "-a" "98869aa15969789fa526060128b964661dbb707114adf7480b470941a70a303c"`
[INFO] [stderr]    Compiling dimensioned v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling app_dirs2 v2.0.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling syn v0.15.21
[INFO] [stderr]    Compiling twox-hash v1.1.1
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling nalgebra v0.14.4
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling cpal v0.8.2
[INFO] [stderr]    Compiling zip v0.3.3
[INFO] [stderr]    Compiling lyon_geom v0.10.1
[INFO] [stderr]    Compiling rusttype v0.5.2
[INFO] [stderr]    Compiling lyon_path v0.10.1
[INFO] [stderr]    Compiling lyon_tessellation v0.10.2
[INFO] [stderr]    Compiling lyon v0.10.2
[INFO] [stderr]    Compiling rodio v0.7.0
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling gfx_core v0.8.3
[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 gfx v0.17.1
[INFO] [stderr]    Compiling gfx_device_gl v0.15.3
[INFO] [stderr]    Compiling gfx_glyph v0.10.2
[INFO] [stderr]    Compiling gfx_window_sdl v0.8.0
[INFO] [stderr]    Compiling ggez v0.4.4
[INFO] [stderr]    Compiling drive-sim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(duration_as_u128)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ggez::audio`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use ggez::audio;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ggez::nalgebra as na`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use ggez::nalgebra as na;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]    --> src/main.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 | use std::ops::Deref;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `drive-sim`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "98869aa15969789fa526060128b964661dbb707114adf7480b470941a70a303c"`
[INFO] running `"docker" "rm" "-f" "98869aa15969789fa526060128b964661dbb707114adf7480b470941a70a303c"`
[INFO] [stdout] 98869aa15969789fa526060128b964661dbb707114adf7480b470941a70a303c