[INFO] cloning repository sctincman/shader_playground
[INFO] running `"git" "clone" "--bare" "git://github.com/sctincman/shader_playground.git" "work/cache/sources/gh/sctincman/shader_playground"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/sctincman/shader_playground'...
[INFO] running `"git" "clone" "work/cache/sources/gh/sctincman/shader_playground" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/sctincman/shader_playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/sctincman/shader_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sctincman/shader_playground" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sctincman/shader_playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sctincman/shader_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd9e700551e0a5f70e04e734687809b48ae3e9a3
[INFO] sha for GitHub repo sctincman/shader_playground: bd9e700551e0a5f70e04e734687809b48ae3e9a3
[INFO] validating manifest of sctincman/shader_playground on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sctincman/shader_playground on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sctincman/shader_playground
[INFO] finished frobbing sctincman/shader_playground
[INFO] frobbed toml for sctincman/shader_playground written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/sctincman/shader_playground/Cargo.toml
[INFO] started frobbing sctincman/shader_playground
[INFO] finished frobbing sctincman/shader_playground
[INFO] frobbed toml for sctincman/shader_playground written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sctincman/shader_playground/Cargo.toml
[INFO] crate sctincman/shader_playground already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sctincman/shader_playground against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sctincman/shader_playground:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] b94ac8467e4778659b8ca695fd0eba46c8107dfa327048caf814ce96059a5cdb
[INFO] running `"docker" "start" "-a" "b94ac8467e4778659b8ca695fd0eba46c8107dfa327048caf814ce96059a5cdb"`
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling approx v0.3.0
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling winit v0.17.2
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling nalgebra v0.16.8
[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-0.16.8/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 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 shader_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `time_step`
[INFO] [stderr]    --> src/main.rs:136:24
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn step(&mut self, time_step: time::Duration) {
[INFO] [stderr]     |                        ^^^^^^^^^ help: consider prefixing with an underscore: `_time_step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `"docker" "inspect" "b94ac8467e4778659b8ca695fd0eba46c8107dfa327048caf814ce96059a5cdb"`
[INFO] running `"docker" "rm" "-f" "b94ac8467e4778659b8ca695fd0eba46c8107dfa327048caf814ce96059a5cdb"`
[INFO] [stdout] b94ac8467e4778659b8ca695fd0eba46c8107dfa327048caf814ce96059a5cdb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sctincman/shader_playground:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8fd9085348d36d6fc6ba09e612ba6cfa76947d637070e751ffd30a5f67266164
[INFO] running `"docker" "start" "-a" "8fd9085348d36d6fc6ba09e612ba6cfa76947d637070e751ffd30a5f67266164"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling shader_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `time_step`
[INFO] [stderr]    --> src/main.rs:136:24
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn step(&mut self, time_step: time::Duration) {
[INFO] [stderr]     |                        ^^^^^^^^^ help: consider prefixing with an underscore: `_time_step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `"docker" "inspect" "8fd9085348d36d6fc6ba09e612ba6cfa76947d637070e751ffd30a5f67266164"`
[INFO] running `"docker" "rm" "-f" "8fd9085348d36d6fc6ba09e612ba6cfa76947d637070e751ffd30a5f67266164"`
[INFO] [stdout] 8fd9085348d36d6fc6ba09e612ba6cfa76947d637070e751ffd30a5f67266164
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sctincman/shader_playground:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] ce02b1f45698cde3546b05692e8686adb3c22004d3fdaaa2a58fbc1ae1c5fdf3
[INFO] running `"docker" "start" "-a" "ce02b1f45698cde3546b05692e8686adb3c22004d3fdaaa2a58fbc1ae1c5fdf3"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shader_playground-9c423a6ec99c66b9
[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" "ce02b1f45698cde3546b05692e8686adb3c22004d3fdaaa2a58fbc1ae1c5fdf3"`
[INFO] running `"docker" "rm" "-f" "ce02b1f45698cde3546b05692e8686adb3c22004d3fdaaa2a58fbc1ae1c5fdf3"`
[INFO] [stdout] ce02b1f45698cde3546b05692e8686adb3c22004d3fdaaa2a58fbc1ae1c5fdf3