[INFO] cloning repository https://github.com/Naalunth/aoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Naalunth/aoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNaalunth%2Faoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNaalunth%2Faoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d18eeb8562976800beaebf45d7b0b4bf86f2ca78
[INFO] testing Naalunth/aoc against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNaalunth%2Faoc" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Naalunth/aoc on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Naalunth/aoc
[INFO] finished tweaking git repo https://github.com/Naalunth/aoc
[INFO] tweaked toml for git repo https://github.com/Naalunth/aoc written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Naalunth/aoc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 223521e5e71f781f6ebcfcdbe1f22771e7e4abb5a5ee834b4ab1af1e423de8e3
[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" "223521e5e71f781f6ebcfcdbe1f22771e7e4abb5a5ee834b4ab1af1e423de8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "223521e5e71f781f6ebcfcdbe1f22771e7e4abb5a5ee834b4ab1af1e423de8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223521e5e71f781f6ebcfcdbe1f22771e7e4abb5a5ee834b4ab1af1e423de8e3", kill_on_drop: false }`
[INFO] [stdout] 223521e5e71f781f6ebcfcdbe1f22771e7e4abb5a5ee834b4ab1af1e423de8e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 71150fb3e1c982551d9c715bad88de3b114cc4769c0482c181d58659a6c47b1f
[INFO] running `Command { std: "docker" "start" "-a" "71150fb3e1c982551d9c715bad88de3b114cc4769c0482c181d58659a6c47b1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling ndarray v0.12.1 (https://github.com/rust-ndarray/ndarray#27c84a5e)
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling atom v0.3.5
[INFO] [stderr]    Compiling tuple_utils v0.2.0
[INFO] [stderr]    Compiling nonzero_signed v1.0.2
[INFO] [stderr]    Compiling partition v0.1.1
[INFO] [stderr]    Compiling aoc-runner v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.3
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling matrixmultiply v0.2.2
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling time v0.1.41
[INFO] [stderr]    Compiling hashers v1.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling nalgebra v0.16.12
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling shred v0.7.1
[INFO] [stderr]    Compiling hibitset v0.5.3
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr]    Compiling specs-derive v0.3.0
[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-0.16.12/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] [stderr]    Compiling shrev v1.0.1
[INFO] [stderr]    Compiling specs v0.14.1
[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" "71150fb3e1c982551d9c715bad88de3b114cc4769c0482c181d58659a6c47b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71150fb3e1c982551d9c715bad88de3b114cc4769c0482c181d58659a6c47b1f", kill_on_drop: false }`
[INFO] [stdout] 71150fb3e1c982551d9c715bad88de3b114cc4769c0482c181d58659a6c47b1f