[INFO] cloning repository https://github.com/tootoobeepbeep/raytrace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tootoobeepbeep/raytrace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fraytrace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fraytrace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e8cd4a124a4c9e7ece090ce582c450cce0dacad
[INFO] testing tootoobeepbeep/raytrace against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fraytrace" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tootoobeepbeep/raytrace on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tootoobeepbeep/raytrace
[INFO] finished tweaking git repo https://github.com/tootoobeepbeep/raytrace
[INFO] tweaked toml for git repo https://github.com/tootoobeepbeep/raytrace written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/tootoobeepbeep/raytrace already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49e5525a09bfb575946ea6719f00b56efc6d772ebc04eee8b27b54e04bff2eee
[INFO] running `Command { std: "docker" "start" "-a" "49e5525a09bfb575946ea6719f00b56efc6d772ebc04eee8b27b54e04bff2eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49e5525a09bfb575946ea6719f00b56efc6d772ebc04eee8b27b54e04bff2eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e5525a09bfb575946ea6719f00b56efc6d772ebc04eee8b27b54e04bff2eee", kill_on_drop: false }`
[INFO] [stdout] 49e5525a09bfb575946ea6719f00b56efc6d772ebc04eee8b27b54e04bff2eee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e371eee407ca0ec62e7bea9e8be6e4f9e4b908aa9ecbce77071826da3d6b085
[INFO] running `Command { std: "docker" "start" "-a" "8e371eee407ca0ec62e7bea9e8be6e4f9e4b908aa9ecbce77071826da3d6b085", kill_on_drop: false }`
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/vec3.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         (self.e[0]*self.e[0]+self.e[1]*self.e[1]+self.e[2]*self.e[2])
[INFO] [stdout]    |         ^                                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -         (self.e[0]*self.e[0]+self.e[1]*self.e[1]+self.e[2]*self.e[2])
[INFO] [stdout] 15 +         self.e[0]*self.e[0]+self.e[1]*self.e[1]+self.e[2]*self.e[2]
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/vec3.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn dot(&self, other: Vec3) -> f64 {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut f = File::create("test.ppm")?;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `buffer` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let buffer = BufWriter::new(f);
[INFO] [stdout]    |         ------ help: consider changing this to be mutable: `mut buffer`
[INFO] [stdout] ...
[INFO] [stdout] 38 |     buffer.write(s.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `buffer` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let buffer = BufWriter::new(f);
[INFO] [stdout]    |         ------ help: consider changing this to be mutable: `mut buffer`
[INFO] [stdout] ...
[INFO] [stdout] 49 |             buffer.write(s.as_bytes()); // need a buffered writer.
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raytracer` due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8e371eee407ca0ec62e7bea9e8be6e4f9e4b908aa9ecbce77071826da3d6b085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e371eee407ca0ec62e7bea9e8be6e4f9e4b908aa9ecbce77071826da3d6b085", kill_on_drop: false }`
[INFO] [stdout] 8e371eee407ca0ec62e7bea9e8be6e4f9e4b908aa9ecbce77071826da3d6b085