[INFO] updating cached repository https://github.com/josefalcon/raytracer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 649506341d86d49249b7ccb65a025b9bb7fb43b6
[INFO] checking josefalcon/raytracer against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosefalcon%2Fraytracer" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/josefalcon/raytracer on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-14/source/Cargo.toml
[INFO] crate git repo https://github.com/josefalcon/raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/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[INFO] the lockfile is outdated, regenerating it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 `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e669135a9377e6e305d79b2c1295578f276164317130b58f3c4033809691aa8
[INFO] running `"docker" "start" "-a" "8e669135a9377e6e305d79b2c1295578f276164317130b58f3c4033809691aa8"`
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking cgmath v0.7.0
[INFO] [stderr]     Checking image v0.23.3
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find value `PNG` in crate `image`
[INFO] [stderr]    --> src/main.rs:225:56
[INFO] [stderr]     |
[INFO] [stderr] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stderr]     |                                                        ^^^ not found in `image`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `return` value
[INFO] [stderr]    --> src/main.rs:205:20
[INFO] [stderr]     |
[INFO] [stderr] 205 |             return (closest_sphere.color * illumination);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stderr]    --> src/main.rs:225:38
[INFO] [stderr]     |
[INFO] [stderr] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stderr]     |                                      ^^^^ ----  ---------- supplied 2 arguments
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[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] [stderr] error[E0425]: cannot find value `PNG` in crate `image`
[INFO] [stderr]    --> src/main.rs:225:56
[INFO] [stderr]     |
[INFO] [stderr] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stderr]     |                                                        ^^^ not found in `image`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `return` value
[INFO] [stderr]    --> src/main.rs:205:20
[INFO] [stderr]     |
[INFO] [stderr] 205 |             return (closest_sphere.color * illumination);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stderr]    --> src/main.rs:225:38
[INFO] [stderr]     |
[INFO] [stderr] 225 |         DynamicImage::ImageRgb8(img).save(fout, image::PNG).unwrap();
[INFO] [stderr]     |                                      ^^^^ ----  ---------- supplied 2 arguments
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `raytracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8e669135a9377e6e305d79b2c1295578f276164317130b58f3c4033809691aa8"`
[INFO] running `"docker" "rm" "-f" "8e669135a9377e6e305d79b2c1295578f276164317130b58f3c4033809691aa8"`
[INFO] [stdout] 8e669135a9377e6e305d79b2c1295578f276164317130b58f3c4033809691aa8
