[INFO] cloning repository https://github.com/Doradus/ray-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Doradus/ray-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoradus%2Fray-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoradus%2Fray-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adffde613a4a9189cfdda2206f22ab20119b7072
[INFO] checking Doradus/ray-tracer/adffde613a4a9189cfdda2206f22ab20119b7072 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoradus%2Fray-tracer" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Doradus/ray-tracer on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Doradus/ray-tracer
[INFO] finished tweaking git repo https://github.com/Doradus/ray-tracer
[INFO] tweaked toml for git repo https://github.com/Doradus/ray-tracer written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Doradus/ray-tracer 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdabfe702e4c8da8c389253acf99edc866c7ee060737fd6e2e6ca10de9ce6905
[INFO] running `Command { std: "docker" "start" "-a" "cdabfe702e4c8da8c389253acf99edc866c7ee060737fd6e2e6ca10de9ce6905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdabfe702e4c8da8c389253acf99edc866c7ee060737fd6e2e6ca10de9ce6905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdabfe702e4c8da8c389253acf99edc866c7ee060737fd6e2e6ca10de9ce6905", kill_on_drop: false }`
[INFO] [stdout] cdabfe702e4c8da8c389253acf99edc866c7ee060737fd6e2e6ca10de9ce6905
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 972677f12a086bc37913b425491e7f6cd12e657d2fc069c0b180e2c58f973568
[INFO] running `Command { std: "docker" "start" "-a" "972677f12a086bc37913b425491e7f6cd12e657d2fc069c0b180e2c58f973568", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
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[INFO] [stderr]     Checking color_quant v1.0.1
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[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking c2-chacha v0.2.3
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[INFO] [stderr]    Compiling memoffset v0.5.2
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
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[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hit_at`
[INFO] [stdout]    --> src/geometry.rs:498:114
[INFO] [stdout]     |
[INFO] [stdout] 498 | ...tor, v1: Vector, v2: Vector, hit_at: &mut Vector) -> bool {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hit_at`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pdf`
[INFO] [stdout]    --> src/shading/mod.rs:237:26
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let (sample, pdf) = importance_sample_ggx(rand1, rand2, a2);
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_pdf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dot_nh`
[INFO] [stdout]    --> src/shading/mod.rs:252:17
[INFO] [stdout]     |
[INFO] [stdout] 252 |             let dot_nh = clamp(n.vec3_dot_f32(h), 0.0, 1.0);
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dot_nh`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_type`
[INFO] [stdout]    --> src/shading/mod.rs:220:132
[INFO] [stdout]     |
[INFO] [stdout] 220 | ... settings: RenderSettings, ray_type: RayType, tbn: &Matrix, specular: & mut Vector, stats: & mut Stats) {
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_type`
[INFO] [stdout]    --> src/shading/mod.rs:269:118
[INFO] [stdout]     |
[INFO] [stdout] 269 | ... settings: RenderSettings, ray_type: RayType, tbn: &Matrix, diffuse: & mut Vector, stats: & mut Stats) {
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_type`
[INFO] [stdout]   --> src/ray_tracer.rs:50:185
[INFO] [stdout]    |
[INFO] [stdout] 50 | ... settings: RenderSettings, ray_type: RayType, stats: & mut Stats) -> Option<TraceResult> {
[INFO] [stdout]    |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit_at`
[INFO] [stdout]    --> src/geometry.rs:498:114
[INFO] [stdout]     |
[INFO] [stdout] 498 | ...tor, v1: Vector, v2: Vector, hit_at: &mut Vector) -> bool {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hit_at`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2`
[INFO] [stdout]    --> src/main.rs:163:19
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let (r, g, b, a2) = output.into();
[INFO] [stdout]     |                   ^^ help: if this is intentional, prefix it with an underscore: `_a2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pdf`
[INFO] [stdout]    --> src/shading/mod.rs:237:26
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let (sample, pdf) = importance_sample_ggx(rand1, rand2, a2);
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_pdf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dot_nh`
[INFO] [stdout]    --> src/shading/mod.rs:252:17
[INFO] [stdout]     |
[INFO] [stdout] 252 |             let dot_nh = clamp(n.vec3_dot_f32(h), 0.0, 1.0);
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dot_nh`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_type`
[INFO] [stdout]    --> src/shading/mod.rs:220:132
[INFO] [stdout]     |
[INFO] [stdout] 220 | ... settings: RenderSettings, ray_type: RayType, tbn: &Matrix, specular: & mut Vector, stats: & mut Stats) {
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_type`
[INFO] [stdout]    --> src/shading/mod.rs:269:118
[INFO] [stdout]     |
[INFO] [stdout] 269 | ... settings: RenderSettings, ray_type: RayType, tbn: &Matrix, diffuse: & mut Vector, stats: & mut Stats) {
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RenderThreadInfo` is never constructed
[INFO] [stdout]   --> src/main.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct RenderThreadInfo {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Perspective` is never constructed
[INFO] [stdout]  --> src/camera.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Perspective {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Orthographic` is never constructed
[INFO] [stdout]  --> src/camera.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Orthographic {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProjectionType` is never used
[INFO] [stdout]   --> src/camera.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum ProjectionType {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `target` are never read
[INFO] [stdout]   --> src/camera.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Camera {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub position: Vector,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 19 |     pub target: Vector,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray_type`
[INFO] [stdout]   --> src/ray_tracer.rs:50:185
[INFO] [stdout]    |
[INFO] [stdout] 50 | ... settings: RenderSettings, ray_type: RayType, stats: & mut Stats) -> Option<TraceResult> {
[INFO] [stdout]    |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ray_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2`
[INFO] [stdout]    --> src/main.rs:163:19
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let (r, g, b, a2) = output.into();
[INFO] [stdout]     |                   ^^ help: if this is intentional, prefix it with an underscore: `_a2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RenderThreadInfo` is never constructed
[INFO] [stdout]   --> src/main.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct RenderThreadInfo {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Perspective` is never constructed
[INFO] [stdout]  --> src/camera.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Perspective {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Orthographic` is never constructed
[INFO] [stdout]  --> src/camera.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Orthographic {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProjectionType` is never used
[INFO] [stdout]   --> src/camera.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum ProjectionType {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `target` are never read
[INFO] [stdout]   --> src/camera.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Camera {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub position: Vector,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 19 |     pub target: Vector,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 9.02s
[INFO] running `Command { std: "docker" "inspect" "972677f12a086bc37913b425491e7f6cd12e657d2fc069c0b180e2c58f973568", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972677f12a086bc37913b425491e7f6cd12e657d2fc069c0b180e2c58f973568", kill_on_drop: false }`
[INFO] [stdout] 972677f12a086bc37913b425491e7f6cd12e657d2fc069c0b180e2c58f973568