[INFO] fetching crate spherical-cow 0.1.2...
[INFO] testing spherical-cow-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate spherical-cow 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate spherical-cow 0.1.2 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] started tweaking crates.io crate spherical-cow 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate spherical-cow 0.1.2
[INFO] tweaked toml for crates.io crate spherical-cow 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8d7ac781b3a3565c1f2e2bbaf039bc80821315a7a59907e6a016942d1eceb90
[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" "c8d7ac781b3a3565c1f2e2bbaf039bc80821315a7a59907e6a016942d1eceb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8d7ac781b3a3565c1f2e2bbaf039bc80821315a7a59907e6a016942d1eceb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8d7ac781b3a3565c1f2e2bbaf039bc80821315a7a59907e6a016942d1eceb90", kill_on_drop: false }`
[INFO] [stdout] c8d7ac781b3a3565c1f2e2bbaf039bc80821315a7a59907e6a016942d1eceb90
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] afc7f75398de16f5b4aa797cff99b402b938fc648502005611e402034a5aeaf8
[INFO] running `Command { std: "docker" "start" "-a" "afc7f75398de16f5b4aa797cff99b402b938fc648502005611e402034a5aeaf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling nalgebra v0.16.14
[INFO] [stderr]    Compiling spherical-cow v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | #![feature(vec_remove_item)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::norm`: use `Matrix::norm` or `Quaternion::norm` instead
[INFO] [stdout]    --> src/lib.rs:389:35
[INFO] [stdout]     |
[INFO] [stdout] 389 |     let unitvector_u = vector_u / nalgebra::norm(&vector_u);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::norm`: use `Matrix::norm` or `Quaternion::norm` instead
[INFO] [stdout]    --> src/lib.rs:391:35
[INFO] [stdout]     |
[INFO] [stdout] 391 |     let unitvector_v = vector_v / nalgebra::norm(&vector_v);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::norm`: use `Matrix::norm` or `Quaternion::norm` instead
[INFO] [stdout]    --> src/lib.rs:393:35
[INFO] [stdout]     |
[INFO] [stdout] 393 |     let unitvector_t = cross_uv / nalgebra::norm(&cross_uv);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::norm`: use `Matrix::norm` or `Quaternion::norm` instead
[INFO] [stdout]    --> src/lib.rs:402:41
[INFO] [stdout]     |
[INFO] [stdout] 402 |         - s_2.center.z.powi(2)) / (2. * nalgebra::norm(&vector_u));
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::norm`: use `Matrix::norm` or `Quaternion::norm` instead
[INFO] [stdout]    --> src/lib.rs:407:41
[INFO] [stdout]     |
[INFO] [stdout] 407 |         - s_3.center.z.powi(2)) / (2. * nalgebra::norm(&vector_v));
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]    --> src/lib.rs:409:18
[INFO] [stdout]     |
[INFO] [stdout] 409 |     let dot_uv = nalgebra::dot(&unitvector_u, &unitvector_v);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]    --> src/lib.rs:410:18
[INFO] [stdout]     |
[INFO] [stdout] 410 |     let dot_wt = nalgebra::dot(&vector_w, &unitvector_t);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]    --> src/lib.rs:411:18
[INFO] [stdout]     |
[INFO] [stdout] 411 |     let dot_uw = nalgebra::dot(&unitvector_u, &vector_w);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]    --> src/lib.rs:412:18
[INFO] [stdout]     |
[INFO] [stdout] 412 |     let dot_vw = nalgebra::dot(&unitvector_v, &vector_w);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::norm`: use `Matrix::norm` or `Quaternion::norm` instead
[INFO] [stdout]    --> src/lib.rs:176:43
[INFO] [stdout]     |
[INFO] [stdout] 176 |                     let n_pc = vec_n_pc / nalgebra::norm(&vec_n_pc);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]   --> src/util/mod.rs:22:23
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let det = nalgebra::dot(&edge1, &pvec);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]   --> src/util/mod.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let u = nalgebra::dot(&tvec, &pvec) * inv_det;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]   --> src/util/mod.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let v = nalgebra::dot(&dir, &qvec) * inv_det;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nalgebra::dot`: use `Matrix::dot` or `Quaternion::dot` instead
[INFO] [stdout]   --> src/util/mod.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let t = nalgebra::dot(&edge2, &qvec) * inv_det;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::vec::Vec::<T>::remove_item`: Removing the first item equal to a needle is already easily possible with iterators and the current Vec methods. Furthermore, having a method for one particular case of removal (linear search, only the first item, no swap remove) but not for others is inconsistent. This method will be removed soon.
[INFO] [stdout]    --> src/lib.rs:286:15
[INFO] [stdout]     |
[INFO] [stdout] 286 |         front.remove_item(&curr_sphere);
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spherical-cow`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "afc7f75398de16f5b4aa797cff99b402b938fc648502005611e402034a5aeaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc7f75398de16f5b4aa797cff99b402b938fc648502005611e402034a5aeaf8", kill_on_drop: false }`
[INFO] [stdout] afc7f75398de16f5b4aa797cff99b402b938fc648502005611e402034a5aeaf8