[INFO] cloning repository https://github.com/wesnel/raytracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wesnel/raytracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwesnel%2Fraytracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwesnel%2Fraytracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 471c01e94c1efb1a8b86866938892e50eedac117
[INFO] testing wesnel/raytracing against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwesnel%2Fraytracing" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wesnel/raytracing on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wesnel/raytracing
[INFO] finished tweaking git repo https://github.com/wesnel/raytracing
[INFO] tweaked toml for git repo https://github.com/wesnel/raytracing written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/wesnel/raytracing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] a8b4c3435c7a106b4717e81afb9ab2e6714e7989005541f6ce35f0f87e8e1b9e
[INFO] running `Command { std: "docker" "start" "-a" "a8b4c3435c7a106b4717e81afb9ab2e6714e7989005541f6ce35f0f87e8e1b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b4c3435c7a106b4717e81afb9ab2e6714e7989005541f6ce35f0f87e8e1b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b4c3435c7a106b4717e81afb9ab2e6714e7989005541f6ce35f0f87e8e1b9e", kill_on_drop: false }`
[INFO] [stdout] a8b4c3435c7a106b4717e81afb9ab2e6714e7989005541f6ce35f0f87e8e1b9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6d9857eb18e7e131a3b703901c768f21f84ceaaa052b6c8b39ada014ae9eaf2
[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" "b6d9857eb18e7e131a3b703901c768f21f84ceaaa052b6c8b39ada014ae9eaf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling raytracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Material`, `Matrix`
[INFO] [stdout]  --> src/math/geometry/sphere.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 |     math::{Form, Geometry, Hittable, Matrix, Point, Vector},
[INFO] [stdout]   |                                      ^^^^^^
[INFO] [stdout] 3 |     world::{Intersection, Intersections, Material, Ray},
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Material`, `intersection::Computations`
[INFO] [stdout]  --> src/world/light/point.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     world::{intersection::Computations, Color, Material, Ray, World},
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 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 `raytracing`.
[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" "b6d9857eb18e7e131a3b703901c768f21f84ceaaa052b6c8b39ada014ae9eaf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d9857eb18e7e131a3b703901c768f21f84ceaaa052b6c8b39ada014ae9eaf2", kill_on_drop: false }`
[INFO] [stdout] b6d9857eb18e7e131a3b703901c768f21f84ceaaa052b6c8b39ada014ae9eaf2
