[INFO] cloning repository https://github.com/zshift/raytracer-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zshift/raytracer-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzshift%2Fraytracer-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzshift%2Fraytracer-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2925fa16d1afedce1bf564ab476ab268d7c75b0e
[INFO] checking zshift/raytracer-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzshift%2Fraytracer-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zshift/raytracer-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zshift/raytracer-rs
[INFO] finished tweaking git repo https://github.com/zshift/raytracer-rs
[INFO] tweaked toml for git repo https://github.com/zshift/raytracer-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zshift/raytracer-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d452f0bd08ca8533e3722cf42cdc19c3b169c1b75ed5cab7bad60abae31097fd
[INFO] running `Command { std: "docker" "start" "-a" "d452f0bd08ca8533e3722cf42cdc19c3b169c1b75ed5cab7bad60abae31097fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d452f0bd08ca8533e3722cf42cdc19c3b169c1b75ed5cab7bad60abae31097fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d452f0bd08ca8533e3722cf42cdc19c3b169c1b75ed5cab7bad60abae31097fd", kill_on_drop: false }`
[INFO] [stdout] d452f0bd08ca8533e3722cf42cdc19c3b169c1b75ed5cab7bad60abae31097fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 017a1db7476c5af68e07735e59eb0ee61511a0e69d4f49e584d46774bfa7be62
[INFO] running `Command { std: "docker" "start" "-a" "017a1db7476c5af68e07735e59eb0ee61511a0e69d4f49e584d46774bfa7be62", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling tokio v1.8.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `RayTask` is never constructed
[INFO] [stdout]   --> src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct RayTask {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RayTask` is never constructed
[INFO] [stdout]   --> src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct RayTask {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "017a1db7476c5af68e07735e59eb0ee61511a0e69d4f49e584d46774bfa7be62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017a1db7476c5af68e07735e59eb0ee61511a0e69d4f49e584d46774bfa7be62", kill_on_drop: false }`
[INFO] [stdout] 017a1db7476c5af68e07735e59eb0ee61511a0e69d4f49e584d46774bfa7be62