[INFO] cloning repository https://github.com/WimbledonLabs/imgui_gfx_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WimbledonLabs/imgui_gfx_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimbledonLabs%2Fimgui_gfx_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimbledonLabs%2Fimgui_gfx_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 284ee3218b24e86bf040f9f49ba86af01337db68
[INFO] checking WimbledonLabs/imgui_gfx_example against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWimbledonLabs%2Fimgui_gfx_example" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WimbledonLabs/imgui_gfx_example on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WimbledonLabs/imgui_gfx_example
[INFO] finished tweaking git repo https://github.com/WimbledonLabs/imgui_gfx_example
[INFO] tweaked toml for git repo https://github.com/WimbledonLabs/imgui_gfx_example written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/WimbledonLabs/imgui_gfx_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0b7b5dbe8ef0b49c9fe4e47a0f3c941f19f17c3222eb14a78b76597b8c1a5c0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0b7b5dbe8ef0b49c9fe4e47a0f3c941f19f17c3222eb14a78b76597b8c1a5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b7b5dbe8ef0b49c9fe4e47a0f3c941f19f17c3222eb14a78b76597b8c1a5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b7b5dbe8ef0b49c9fe4e47a0f3c941f19f17c3222eb14a78b76597b8c1a5c0", kill_on_drop: false }`
[INFO] [stdout] b0b7b5dbe8ef0b49c9fe4e47a0f3c941f19f17c3222eb14a78b76597b8c1a5c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 85ae8bea2203ad3c50496c4efd5b60ad9b287463bf2bb94fc4b519ff15a8e348
[INFO] running `Command { std: "docker" "start" "-a" "85ae8bea2203ad3c50496c4efd5b60ad9b287463bf2bb94fc4b519ff15a8e348", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling imgui-sys v0.0.20
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking approx v0.2.0
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]     Checking alga v0.6.0
[INFO] [stderr]     Checking parking_lot_core v0.3.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking nalgebra v0.15.3
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking imgui v0.0.20
[INFO] [stderr]     Checking smithay-client-toolkit v0.3.0
[INFO] [stderr]     Checking imgui-gfx-renderer v0.0.20
[INFO] [stderr]     Checking winit v0.17.2
[INFO] [stderr]     Checking gfx_window_glutin v0.26.0
[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] running `Command { std: "docker" "inspect" "85ae8bea2203ad3c50496c4efd5b60ad9b287463bf2bb94fc4b519ff15a8e348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85ae8bea2203ad3c50496c4efd5b60ad9b287463bf2bb94fc4b519ff15a8e348", kill_on_drop: false }`
[INFO] [stdout] 85ae8bea2203ad3c50496c4efd5b60ad9b287463bf2bb94fc4b519ff15a8e348