[INFO] updating cached repository https://github.com/mrobakowski/rust-metaballs
[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] 8a4fb6c36f2f58591c90c5b4e152156bbea55bde
[INFO] testing mrobakowski/rust-metaballs against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrobakowski%2Frust-metaballs" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrobakowski/rust-metaballs 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/mrobakowski/rust-metaballs
[INFO] finished tweaking git repo https://github.com/mrobakowski/rust-metaballs
[INFO] tweaked toml for git repo https://github.com/mrobakowski/rust-metaballs written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mrobakowski/rust-metaballs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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] 0f92c28a2e968154be715c2b9d38fa5a5bd89df867dc0bc034a84f15eb2d0a96
[INFO] running `"docker" "start" "-a" "0f92c28a2e968154be715c2b9d38fa5a5bd89df867dc0bc034a84f15eb2d0a96"`
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling x11-dl v2.18.0
[INFO] [stderr]    Compiling quaternion v0.3.0
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]    Compiling wayland-sys v0.20.10
[INFO] [stderr]    Compiling piston3d-cam v0.3.0
[INFO] [stderr]    Compiling wayland-commons v0.20.10
[INFO] [stderr]    Compiling wayland-client v0.20.10
[INFO] [stderr]    Compiling parking_lot v0.6.2
[INFO] [stderr]    Compiling approx v0.2.1
[INFO] [stderr]    Compiling alga v0.6.0
[INFO] [stderr]    Compiling wayland-protocols v0.20.10
[INFO] [stderr]    Compiling nalgebra v0.15.3
[INFO] [stderr]    Compiling smithay-client-toolkit v0.2.6
[INFO] [stderr]    Compiling winit v0.16.2
[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-0.15.3/src/base/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 rust-metaballs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.11s
[INFO] running `"docker" "inspect" "0f92c28a2e968154be715c2b9d38fa5a5bd89df867dc0bc034a84f15eb2d0a96"`
[INFO] running `"docker" "rm" "-f" "0f92c28a2e968154be715c2b9d38fa5a5bd89df867dc0bc034a84f15eb2d0a96"`
[INFO] [stdout] 0f92c28a2e968154be715c2b9d38fa5a5bd89df867dc0bc034a84f15eb2d0a96
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 401b63456ad5383bab5e76716e39be41f8ce3c5f5d674c3aaf928c6220ae28bf
[INFO] running `"docker" "start" "-a" "401b63456ad5383bab5e76716e39be41f8ce3c5f5d674c3aaf928c6220ae28bf"`
[INFO] [stderr]    Compiling rust-metaballs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "401b63456ad5383bab5e76716e39be41f8ce3c5f5d674c3aaf928c6220ae28bf"`
[INFO] running `"docker" "rm" "-f" "401b63456ad5383bab5e76716e39be41f8ce3c5f5d674c3aaf928c6220ae28bf"`
[INFO] [stdout] 401b63456ad5383bab5e76716e39be41f8ce3c5f5d674c3aaf928c6220ae28bf
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "test" "--frozen"`
[INFO] [stdout] f26c32b1be1c8b02da1ea795c2e59177deb16eff17c4b8bf742336a0682a13c4
[INFO] running `"docker" "start" "-a" "f26c32b1be1c8b02da1ea795c2e59177deb16eff17c4b8bf742336a0682a13c4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_metaballs-5315c3a0873c5e66
[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" "f26c32b1be1c8b02da1ea795c2e59177deb16eff17c4b8bf742336a0682a13c4"`
[INFO] running `"docker" "rm" "-f" "f26c32b1be1c8b02da1ea795c2e59177deb16eff17c4b8bf742336a0682a13c4"`
[INFO] [stdout] f26c32b1be1c8b02da1ea795c2e59177deb16eff17c4b8bf742336a0682a13c4