[INFO] cloning repository https://github.com/timraymond/rust_tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timraymond/rust_tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimraymond%2Frust_tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimraymond%2Frust_tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08b0a027169f2bb1bbf7863b218f1c125d429f10
[INFO] checking timraymond/rust_tracer against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimraymond%2Frust_tracer" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timraymond/rust_tracer on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timraymond/rust_tracer
[INFO] finished tweaking git repo https://github.com/timraymond/rust_tracer
[INFO] tweaked toml for git repo https://github.com/timraymond/rust_tracer written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/timraymond/rust_tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffc42ab8ea285aa3a8b5e86ea4fcb888c6ea8f5d4e5490999fcc1413f8961718
[INFO] running `Command { std: "docker" "start" "-a" "ffc42ab8ea285aa3a8b5e86ea4fcb888c6ea8f5d4e5490999fcc1413f8961718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffc42ab8ea285aa3a8b5e86ea4fcb888c6ea8f5d4e5490999fcc1413f8961718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffc42ab8ea285aa3a8b5e86ea4fcb888c6ea8f5d4e5490999fcc1413f8961718", kill_on_drop: false }`
[INFO] [stdout] ffc42ab8ea285aa3a8b5e86ea4fcb888c6ea8f5d4e5490999fcc1413f8961718
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4656dd4e02d70eedb46414a451ae38f7a7b746549849a77acc8d917305265abf
[INFO] running `Command { std: "docker" "start" "-a" "4656dd4e02d70eedb46414a451ae38f7a7b746549849a77acc8d917305265abf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/vec3.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 | /         (self.0*self.0 +
[INFO] [stdout] 320 | |          self.1*self.1 +
[INFO] [stdout] 321 | |          self.2*self.2)
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 319 |         self.0*self.0 +
[INFO] [stdout] 320 |          self.1*self.1 +
[INFO] [stdout] 321 |          self.2*self.2
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/vec3.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 | /         (self.0*self.0 +
[INFO] [stdout] 320 | |          self.1*self.1 +
[INFO] [stdout] 321 | |          self.2*self.2)
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 319 |         self.0*self.0 +
[INFO] [stdout] 320 |          self.1*self.1 +
[INFO] [stdout] 321 |          self.2*self.2
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `w`
[INFO] [stdout]   --> src/vec3.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     w: Vec3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random`
[INFO] [stdout]    --> src/vec3.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn random(lower: f64, upper: f64) -> Vec3 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `w`
[INFO] [stdout]   --> src/vec3.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     w: Vec3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]    --> src/vec3.rs:289:12
[INFO] [stdout]     |
[INFO] [stdout] 289 |     pub fn unit() -> Vec3 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random`
[INFO] [stdout]    --> src/vec3.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn random(lower: f64, upper: f64) -> Vec3 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "4656dd4e02d70eedb46414a451ae38f7a7b746549849a77acc8d917305265abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4656dd4e02d70eedb46414a451ae38f7a7b746549849a77acc8d917305265abf", kill_on_drop: false }`
[INFO] [stdout] 4656dd4e02d70eedb46414a451ae38f7a7b746549849a77acc8d917305265abf