[INFO] cloning repository https://github.com/iDeBugger/rust-ray-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iDeBugger/rust-ray-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiDeBugger%2Frust-ray-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiDeBugger%2Frust-ray-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec364cab59bf50a4cf916cf014e061e5f6c016d8
[INFO] testing iDeBugger/rust-ray-tracer against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiDeBugger%2Frust-ray-tracer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iDeBugger/rust-ray-tracer on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iDeBugger/rust-ray-tracer
[INFO] finished tweaking git repo https://github.com/iDeBugger/rust-ray-tracer
[INFO] tweaked toml for git repo https://github.com/iDeBugger/rust-ray-tracer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/iDeBugger/rust-ray-tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fb5e7a5610dd8a1ccc9dda2f7f0f4eb099cb0d1f9f8d6fa76c44991ac964e3e
[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" "1fb5e7a5610dd8a1ccc9dda2f7f0f4eb099cb0d1f9f8d6fa76c44991ac964e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fb5e7a5610dd8a1ccc9dda2f7f0f4eb099cb0d1f9f8d6fa76c44991ac964e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb5e7a5610dd8a1ccc9dda2f7f0f4eb099cb0d1f9f8d6fa76c44991ac964e3e", kill_on_drop: false }`
[INFO] [stdout] 1fb5e7a5610dd8a1ccc9dda2f7f0f4eb099cb0d1f9f8d6fa76c44991ac964e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--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] 1eea535390b1c2aa521daf2ec44fff5ce575daf32333d4b4fd7c99b9c57bdd77
[INFO] running `Command { std: "docker" "start" "-a" "1eea535390b1c2aa521daf2ec44fff5ce575daf32333d4b4fd7c99b9c57bdd77", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling safe-transmute v0.10.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling inflate v0.4.4
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling nalgebra v0.16.13
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.21.0
[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-0.16.13/src/base/cg.rs:291:44
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 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" "1eea535390b1c2aa521daf2ec44fff5ce575daf32333d4b4fd7c99b9c57bdd77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eea535390b1c2aa521daf2ec44fff5ce575daf32333d4b4fd7c99b9c57bdd77", kill_on_drop: false }`
[INFO] [stdout] 1eea535390b1c2aa521daf2ec44fff5ce575daf32333d4b4fd7c99b9c57bdd77