[INFO] updating cached repository https://github.com/17cupsofcoffee/rl
[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] f48c0de8a22481552d030324e07cab804afc3fbc
[INFO] testing 17cupsofcoffee/rl against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2F17cupsofcoffee%2Frl" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/17cupsofcoffee/rl on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/17cupsofcoffee/rl
[INFO] finished tweaking git repo https://github.com/17cupsofcoffee/rl
[INFO] tweaked toml for git repo https://github.com/17cupsofcoffee/rl written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/17cupsofcoffee/rl already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] a0d2848a814823e50716d869e2046f3c81cd8986b4a743bc8f6828cc9a95b9e5
[INFO] running `"docker" "start" "-a" "a0d2848a814823e50716d869e2046f3c81cd8986b4a743bc8f6828cc9a95b9e5"`
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling khronos_api v3.0.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling adler32 v1.0.3
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling quote v0.6.10
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[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling rand v0.4.3
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[INFO] [stderr]    Compiling generic-array v0.11.1
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[INFO] [stderr]    Compiling syn v0.15.23
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[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
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[INFO] [stderr]    Compiling rusttype v0.7.3
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling sdl2 v0.32.0
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling glyph_brush_layout v0.1.3
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling nalgebra v0.16.12
[INFO] [stderr]    Compiling glyph_brush v0.2.4
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling hibitset v0.5.3
[INFO] [stderr]    Compiling shred v0.7.1
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.16.12/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 nalgebra-glm v0.2.0
[INFO] [stderr] error: Could not compile `derivative`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name derivative /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/derivative-1.0.2/src/lib.rs --color never --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C opt-level=2 -C debuginfo=2 -C debug-assertions=on -C metadata=1b443edafa6fcf4b -C extra-filename=-1b443edafa6fcf4b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2870cc2e3621b4b7.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-578209e9243b50c3.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-fec91bb92bdc6e1b.rlib --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a0d2848a814823e50716d869e2046f3c81cd8986b4a743bc8f6828cc9a95b9e5"`
[INFO] running `"docker" "rm" "-f" "a0d2848a814823e50716d869e2046f3c81cd8986b4a743bc8f6828cc9a95b9e5"`
[INFO] [stdout] a0d2848a814823e50716d869e2046f3c81cd8986b4a743bc8f6828cc9a95b9e5