[INFO] cloning repository https://github.com/josefalcon/raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/josefalcon/raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosefalcon%2Fraytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosefalcon%2Fraytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 649506341d86d49249b7ccb65a025b9bb7fb43b6
[INFO] checking josefalcon/raytracer against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosefalcon%2Fraytracer" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/josefalcon/raytracer 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/josefalcon/raytracer
[INFO] finished tweaking git repo https://github.com/josefalcon/raytracer
[INFO] tweaked toml for git repo https://github.com/josefalcon/raytracer written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/josefalcon/raytracer 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] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 31ce2299d868d1784cf81edf7217110e5c9951f7b72089f3c5708d5986037953
[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" "31ce2299d868d1784cf81edf7217110e5c9951f7b72089f3c5708d5986037953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31ce2299d868d1784cf81edf7217110e5c9951f7b72089f3c5708d5986037953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ce2299d868d1784cf81edf7217110e5c9951f7b72089f3c5708d5986037953", kill_on_drop: false }`
[INFO] [stdout] 31ce2299d868d1784cf81edf7217110e5c9951f7b72089f3c5708d5986037953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 4f109973a9d129508ccb54e717a9cf2e42f2088c98f8be84b7d95ebb801a5f78
[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" "4f109973a9d129508ccb54e717a9cf2e42f2088c98f8be84b7d95ebb801a5f78", kill_on_drop: false }`
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking cgmath v0.7.0
[INFO] [stderr]     Checking image v0.23.11
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `PNG` in crate `image`
[INFO] [stdout]    --> src/main.rs:225:56
[INFO] [stdout]     |
[INFO] [stdout] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stdout]     |                                                        ^^^ not found in `image`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this tuple variant
[INFO] [stdout]     |
[INFO] [stdout] 4   | use codecs::ico::decoder::PNG;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `PNG` in crate `image`
[INFO] [stdout]    --> src/main.rs:225:56
[INFO] [stdout]     |
[INFO] [stdout] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stdout]     |                                                        ^^^ not found in `image`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this tuple variant
[INFO] [stdout]     |
[INFO] [stdout] 4   | use codecs::ico::decoder::PNG;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]    --> src/main.rs:205:20
[INFO] [stdout]     |
[INFO] [stdout] 205 |             return (closest_sphere.color * illumination);
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]    --> src/main.rs:205:20
[INFO] [stdout]     |
[INFO] [stdout] 205 |             return (closest_sphere.color * illumination);
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/main.rs:225:38
[INFO] [stdout]     |
[INFO] [stdout] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stdout]     |                                      ^^^^ ----  ---------- supplied 2 arguments
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      expected 1 argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/main.rs:225:38
[INFO] [stdout]     |
[INFO] [stdout] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stdout]     |                                      ^^^^ ----  ---------- supplied 2 arguments
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      expected 1 argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raytracer`
[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] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4f109973a9d129508ccb54e717a9cf2e42f2088c98f8be84b7d95ebb801a5f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f109973a9d129508ccb54e717a9cf2e42f2088c98f8be84b7d95ebb801a5f78", kill_on_drop: false }`
[INFO] [stdout] 4f109973a9d129508ccb54e717a9cf2e42f2088c98f8be84b7d95ebb801a5f78