[INFO] cloning repository https://github.com/thubie/ray-tracing-in-one-weekend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thubie/ray-tracing-in-one-weekend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthubie%2Fray-tracing-in-one-weekend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthubie%2Fray-tracing-in-one-weekend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6533508ca96dfc6106d6b1bf3f3f5f6684f10705
[INFO] checking thubie/ray-tracing-in-one-weekend against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthubie%2Fray-tracing-in-one-weekend" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thubie/ray-tracing-in-one-weekend on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thubie/ray-tracing-in-one-weekend
[INFO] finished tweaking git repo https://github.com/thubie/ray-tracing-in-one-weekend
[INFO] tweaked toml for git repo https://github.com/thubie/ray-tracing-in-one-weekend written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/thubie/ray-tracing-in-one-weekend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05efdc92db13046dd172b298efe67928106ee5975a3b631ca3ff575e4d2df386
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05efdc92db13046dd172b298efe67928106ee5975a3b631ca3ff575e4d2df386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05efdc92db13046dd172b298efe67928106ee5975a3b631ca3ff575e4d2df386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05efdc92db13046dd172b298efe67928106ee5975a3b631ca3ff575e4d2df386", kill_on_drop: false }`
[INFO] [stdout] 05efdc92db13046dd172b298efe67928106ee5975a3b631ca3ff575e4d2df386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef14d89d53be6667cbf96d4f9e462d0bf08b241712009552c5b66d73c93170af
[INFO] running `Command { std: "docker" "start" "-a" "ef14d89d53be6667cbf96d4f9e462d0bf08b241712009552c5b66d73c93170af", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]    Compiling minifb v0.10.3
[INFO] [stderr]     Checking cgmath v0.15.0
[INFO] [stderr]     Checking raytracing_one_weeked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_red_channel_value`
[INFO] [stdout]   --> src/main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn set_red_channel_value(&mut self, value: u8) {
[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: `set_green_channel_value`
[INFO] [stdout]   --> src/main.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn set_green_channel_value(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_blue_channel_value`
[INFO] [stdout]   --> src/main.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn set_blue_channel_value(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_alpha_channel_value`
[INFO] [stdout]   --> src/main.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_alpha_channel_value(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_red_channel_value`
[INFO] [stdout]   --> src/main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn set_red_channel_value(&mut self, value: u8) {
[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: `set_green_channel_value`
[INFO] [stdout]   --> src/main.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn set_green_channel_value(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_blue_channel_value`
[INFO] [stdout]   --> src/main.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn set_blue_channel_value(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_alpha_channel_value`
[INFO] [stdout]   --> src/main.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_alpha_channel_value(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
[INFO] running `Command { std: "docker" "inspect" "ef14d89d53be6667cbf96d4f9e462d0bf08b241712009552c5b66d73c93170af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef14d89d53be6667cbf96d4f9e462d0bf08b241712009552c5b66d73c93170af", kill_on_drop: false }`
[INFO] [stdout] ef14d89d53be6667cbf96d4f9e462d0bf08b241712009552c5b66d73c93170af