[INFO] cloning repository https://github.com/gzm0/rs-raytrace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gzm0/rs-raytrace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgzm0%2Frs-raytrace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgzm0%2Frs-raytrace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58b67823419a0b334fb2dd191ed25d3e9e01b3f2
[INFO] checking gzm0/rs-raytrace against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgzm0%2Frs-raytrace" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gzm0/rs-raytrace 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/gzm0/rs-raytrace
[INFO] finished tweaking git repo https://github.com/gzm0/rs-raytrace
[INFO] tweaked toml for git repo https://github.com/gzm0/rs-raytrace written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gzm0/rs-raytrace 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded same v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 18f8640189ebda4c2f5056a16ec68be8f9d8c58f03b8152aed7b5742b4ef9cdb
[INFO] running `Command { std: "docker" "start" "-a" "18f8640189ebda4c2f5056a16ec68be8f9d8c58f03b8152aed7b5742b4ef9cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18f8640189ebda4c2f5056a16ec68be8f9d8c58f03b8152aed7b5742b4ef9cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f8640189ebda4c2f5056a16ec68be8f9d8c58f03b8152aed7b5742b4ef9cdb", kill_on_drop: false }`
[INFO] [stdout] 18f8640189ebda4c2f5056a16ec68be8f9d8c58f03b8152aed7b5742b4ef9cdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8ed1b73206ad2146842026f9d8f3230dab517d4e0e45bd4b53dc8c3254705a06
[INFO] running `Command { std: "docker" "start" "-a" "8ed1b73206ad2146842026f9d8f3230dab517d4e0e45bd4b53dc8c3254705a06", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking weezl v0.1.4
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking bytemuck v1.5.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking quaternion v0.4.1
[INFO] [stderr]     Checking same v0.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.13
[INFO] [stderr]     Checking rs-raytrace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::option::Option;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Option` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::option::Option;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Option` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_box` is never used
[INFO] [stdout]    --> src/main.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn draw_box() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_box` is never used
[INFO] [stdout]    --> src/main.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn draw_box() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 14.15s
[INFO] running `Command { std: "docker" "inspect" "8ed1b73206ad2146842026f9d8f3230dab517d4e0e45bd4b53dc8c3254705a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ed1b73206ad2146842026f9d8f3230dab517d4e0e45bd4b53dc8c3254705a06", kill_on_drop: false }`
[INFO] [stdout] 8ed1b73206ad2146842026f9d8f3230dab517d4e0e45bd4b53dc8c3254705a06
[INFO] checking gzm0/rs-raytrace against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgzm0%2Frs-raytrace" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gzm0/rs-raytrace on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gzm0/rs-raytrace
[INFO] finished tweaking git repo https://github.com/gzm0/rs-raytrace
[INFO] tweaked toml for git repo https://github.com/gzm0/rs-raytrace written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gzm0/rs-raytrace 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6105233daac0860e9d5f2ffdf2c04ac70366538e6bdbd378dde3f2fbf6d41ee9
[INFO] running `Command { std: "docker" "start" "-a" "6105233daac0860e9d5f2ffdf2c04ac70366538e6bdbd378dde3f2fbf6d41ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6105233daac0860e9d5f2ffdf2c04ac70366538e6bdbd378dde3f2fbf6d41ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6105233daac0860e9d5f2ffdf2c04ac70366538e6bdbd378dde3f2fbf6d41ee9", kill_on_drop: false }`
[INFO] [stdout] 6105233daac0860e9d5f2ffdf2c04ac70366538e6bdbd378dde3f2fbf6d41ee9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2263da7445df970bbb86c5809c44a4fd03163f09b7bd553f4c974525d07c8975
[INFO] running `Command { std: "docker" "start" "-a" "2263da7445df970bbb86c5809c44a4fd03163f09b7bd553f4c974525d07c8975", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking weezl v0.1.4
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking bytemuck v1.5.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking same v0.1.0
[INFO] [stderr]     Checking quaternion v0.4.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.13
[INFO] [stderr]     Checking rs-raytrace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::option::Option;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Option` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::option::Option;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Option` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_box` is never used
[INFO] [stdout]    --> src/main.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn draw_box() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_box` is never used
[INFO] [stdout]    --> src/main.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn draw_box() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 14.81s
[INFO] running `Command { std: "docker" "inspect" "2263da7445df970bbb86c5809c44a4fd03163f09b7bd553f4c974525d07c8975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2263da7445df970bbb86c5809c44a4fd03163f09b7bd553f4c974525d07c8975", kill_on_drop: false }`
[INFO] [stdout] 2263da7445df970bbb86c5809c44a4fd03163f09b7bd553f4c974525d07c8975