[INFO] cloning repository https://github.com/mrobakowski/rust-metaballs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrobakowski/rust-metaballs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrobakowski%2Frust-metaballs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrobakowski%2Frust-metaballs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a4fb6c36f2f58591c90c5b4e152156bbea55bde
[INFO] checking mrobakowski/rust-metaballs against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrobakowski%2Frust-metaballs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrobakowski/rust-metaballs on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mrobakowski/rust-metaballs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db94c47a4deb6de71460ae35bdbb3375b51fecc8c8d6a6c6d38f61bc8647aae1
[INFO] running `Command { std: "docker" "start" "-a" "db94c47a4deb6de71460ae35bdbb3375b51fecc8c8d6a6c6d38f61bc8647aae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db94c47a4deb6de71460ae35bdbb3375b51fecc8c8d6a6c6d38f61bc8647aae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db94c47a4deb6de71460ae35bdbb3375b51fecc8c8d6a6c6d38f61bc8647aae1", kill_on_drop: false }`
[INFO] [stdout] db94c47a4deb6de71460ae35bdbb3375b51fecc8c8d6a6c6d38f61bc8647aae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3507d48b07ed9096b241a042d7612c16099a37898e9eec47e458ba0cc9569a4
[INFO] running `Command { std: "docker" "start" "-a" "d3507d48b07ed9096b241a042d7612c16099a37898e9eec47e458ba0cc9569a4", kill_on_drop: false }`
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling x11-dl v2.18.0
[INFO] [stderr]    Compiling wayland-scanner v0.20.10
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]     Checking typenum v1.10.0
[INFO] [stderr]     Checking quaternion v0.3.0
[INFO] [stderr]     Checking approx v0.2.1
[INFO] [stderr]     Checking wayland-sys v0.20.10
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking piston3d-cam v0.3.0
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking alga v0.6.0
[INFO] [stderr]     Checking wayland-commons v0.20.10
[INFO] [stderr]     Checking parking_lot v0.6.2
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]    Compiling wayland-client v0.20.10
[INFO] [stderr]    Compiling wayland-protocols v0.20.10
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]     Checking nalgebra v0.15.3
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]     Checking winit v0.16.2
[INFO] [stdout] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.15.3/src/base/cg.rs:292:44
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stdout]     |                 ---------------------------^^^^-------------------
[INFO] [stdout]     |                 |                          |
[INFO] [stdout]     |                 |                          immutable borrow occurs here
[INFO] [stdout]     |                 mutable borrow occurs here
[INFO] [stdout]     |                 mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nalgebra`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d3507d48b07ed9096b241a042d7612c16099a37898e9eec47e458ba0cc9569a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3507d48b07ed9096b241a042d7612c16099a37898e9eec47e458ba0cc9569a4", kill_on_drop: false }`
[INFO] [stdout] d3507d48b07ed9096b241a042d7612c16099a37898e9eec47e458ba0cc9569a4