[INFO] cloning repository https://github.com/dfockler/pathtracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dfockler/pathtracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Fpathtracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Fpathtracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f96e8af5b43886bcc5ecc04a98c064450ba8c898
[INFO] testing dfockler/pathtracer against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Fpathtracer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dfockler/pathtracer
[INFO] finished tweaking git repo https://github.com/dfockler/pathtracer
[INFO] tweaked toml for git repo https://github.com/dfockler/pathtracer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dfockler/pathtracer on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dfockler/pathtracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing dfockler/pathtracer against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Fpathtracer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dfockler/pathtracer
[INFO] finished tweaking git repo https://github.com/dfockler/pathtracer
[INFO] tweaked toml for git repo https://github.com/dfockler/pathtracer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dfockler/pathtracer on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dfockler/pathtracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded image v0.21.2
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded num-traits v0.2.8
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded lzw v0.10.0
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded crossbeam-queue v0.1.2
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.3
[INFO] [stderr]   Downloaded num-iter v0.1.39
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.5
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded gif v0.10.2
[INFO] [stderr]   Downloaded png v0.14.1
[INFO] [stderr]   Downloaded num-integer v0.1.41
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded num-rational v0.2.2
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.1
[INFO] [stderr]   Downloaded rayon-core v1.5.0
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded syn v0.15.38
[INFO] [stderr]   Downloaded rayon v1.1.0
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded tiff v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a1630f482d1884fdb1dd29c986d69317291d8176aaddb768ed85a596e2d92c1
[INFO] running `Command { std: "docker" "start" "-a" "0a1630f482d1884fdb1dd29c986d69317291d8176aaddb768ed85a596e2d92c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a1630f482d1884fdb1dd29c986d69317291d8176aaddb768ed85a596e2d92c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1630f482d1884fdb1dd29c986d69317291d8176aaddb768ed85a596e2d92c1", kill_on_drop: false }`
[INFO] [stdout] 0a1630f482d1884fdb1dd29c986d69317291d8176aaddb768ed85a596e2d92c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6441ada1f1914a22264eaa45a4ccd6ebddea3e59896a6ffdc9e6e40c84769d5b
[INFO] running `Command { std: "docker" "start" "-a" "6441ada1f1914a22264eaa45a4ccd6ebddea3e59896a6ffdc9e6e40c84769d5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.2
[INFO] [stderr]    Compiling pathtracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dist`
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let dist = start.dist(&end);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PI` is never used
[INFO] [stdout]  --> src/main.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const PI: u8 = 3;
[INFO] [stdout]   |       ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reflectance` and `color` are never read
[INFO] [stdout]    --> src/main.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout]  96 | struct Sphere {
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 100 |     reflectance: [u8; 4],
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 101 |     color: [u8; 4],
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Sphere` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add` and `cross` are never used
[INFO] [stdout]    --> src/main.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl Vector {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn add(&self, other: &Vector) -> Vector {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn cross(&self, other: &Vector) -> Vector {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Light` is never constructed
[INFO] [stdout]    --> src/main.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | struct Light {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `Command { std: "docker" "inspect" "6441ada1f1914a22264eaa45a4ccd6ebddea3e59896a6ffdc9e6e40c84769d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6441ada1f1914a22264eaa45a4ccd6ebddea3e59896a6ffdc9e6e40c84769d5b", kill_on_drop: false }`
[INFO] [stdout] 6441ada1f1914a22264eaa45a4ccd6ebddea3e59896a6ffdc9e6e40c84769d5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00310e9ea82791d7a7032e630d30c525cd302d070736ebdc1acaae2f5fde0d64
[INFO] running `Command { std: "docker" "start" "-a" "00310e9ea82791d7a7032e630d30c525cd302d070736ebdc1acaae2f5fde0d64", kill_on_drop: false }`
[INFO] [stderr]    Compiling pathtracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dist`
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let dist = start.dist(&end);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PI` is never used
[INFO] [stdout]  --> src/main.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const PI: u8 = 3;
[INFO] [stdout]   |       ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reflectance` and `color` are never read
[INFO] [stdout]    --> src/main.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout]  96 | struct Sphere {
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 100 |     reflectance: [u8; 4],
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 101 |     color: [u8; 4],
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Sphere` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add` and `cross` are never used
[INFO] [stdout]    --> src/main.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl Vector {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn add(&self, other: &Vector) -> Vector {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn cross(&self, other: &Vector) -> Vector {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Light` is never constructed
[INFO] [stdout]    --> src/main.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | struct Light {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "00310e9ea82791d7a7032e630d30c525cd302d070736ebdc1acaae2f5fde0d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00310e9ea82791d7a7032e630d30c525cd302d070736ebdc1acaae2f5fde0d64", kill_on_drop: false }`
[INFO] [stdout] 00310e9ea82791d7a7032e630d30c525cd302d070736ebdc1acaae2f5fde0d64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be75b23aab39e4380e562a2de3bc662b8a630dbaa6a7909319c895dd7698505a
[INFO] running `Command { std: "docker" "start" "-a" "be75b23aab39e4380e562a2de3bc662b8a630dbaa6a7909319c895dd7698505a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `dist`
[INFO] [stderr]   --> src/main.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let dist = start.dist(&end);
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dist`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PI` is never used
[INFO] [stderr]  --> src/main.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 | const PI: u8 = 3;
[INFO] [stderr]   |       ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `reflectance` and `color` are never read
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr]  96 | struct Sphere {
[INFO] [stderr]     |        ------ fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 100 |     reflectance: [u8; 4],
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 101 |     color: [u8; 4],
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Sphere` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: methods `add` and `cross` are never used
[INFO] [stderr]    --> src/main.rs:155:8
[INFO] [stderr]     |
[INFO] [stderr] 111 | impl Vector {
[INFO] [stderr]     | ----------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 155 |     fn add(&self, other: &Vector) -> Vector {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 163 |     fn cross(&self, other: &Vector) -> Vector {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Light` is never constructed
[INFO] [stderr]    --> src/main.rs:185:8
[INFO] [stderr]     |
[INFO] [stderr] 185 | struct Light {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `pathtracer` (bin "pathtracer" test) generated 5 warnings (run `cargo fix --bin "pathtracer" -p pathtracer --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/pathtracer-482d55464b233adf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "be75b23aab39e4380e562a2de3bc662b8a630dbaa6a7909319c895dd7698505a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be75b23aab39e4380e562a2de3bc662b8a630dbaa6a7909319c895dd7698505a", kill_on_drop: false }`
[INFO] [stdout] be75b23aab39e4380e562a2de3bc662b8a630dbaa6a7909319c895dd7698505a
