[INFO] cloning repository https://github.com/CaesarXInsanium/cx_failed_terminal_graphics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CaesarXInsanium/cx_failed_terminal_graphics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaesarXInsanium%2Fcx_failed_terminal_graphics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaesarXInsanium%2Fcx_failed_terminal_graphics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c26035cab3e39568be8533db781bdbe3572cdc4
[INFO] checking CaesarXInsanium/cx_failed_terminal_graphics against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaesarXInsanium%2Fcx_failed_terminal_graphics" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics 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/CaesarXInsanium/cx_failed_terminal_graphics
[INFO] finished tweaking git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics
[INFO] tweaked toml for git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics 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]     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 colorful v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c3a673ac0a8bec6a5671b744c74f7581c2fd662a881d40868ea0966d18e0ea65
[INFO] running `Command { std: "docker" "start" "-a" "c3a673ac0a8bec6a5671b744c74f7581c2fd662a881d40868ea0966d18e0ea65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3a673ac0a8bec6a5671b744c74f7581c2fd662a881d40868ea0966d18e0ea65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a673ac0a8bec6a5671b744c74f7581c2fd662a881d40868ea0966d18e0ea65", kill_on_drop: false }`
[INFO] [stdout] c3a673ac0a8bec6a5671b744c74f7581c2fd662a881d40868ea0966d18e0ea65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0415243385cc5314da62a165a9899d096f47f169b3bacafd6b9883f3b8fdf678
[INFO] running `Command { std: "docker" "start" "-a" "0415243385cc5314da62a165a9899d096f47f169b3bacafd6b9883f3b8fdf678", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking graphics_scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `light`
[INFO] [stdout]   --> src/light.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for light in lights.iter(){}
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut im = image::DynamicImage::new_rgb8(x as u32, y as u32);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Canvas{
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 148 |     buffer: Vec<Vec<Color>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Canvas` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `light`
[INFO] [stdout]   --> src/light.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for light in lights.iter(){}
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut im = image::DynamicImage::new_rgb8(x as u32, y as u32);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Canvas{
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 148 |     buffer: Vec<Vec<Color>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Canvas` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.03s
[INFO] running `Command { std: "docker" "inspect" "0415243385cc5314da62a165a9899d096f47f169b3bacafd6b9883f3b8fdf678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0415243385cc5314da62a165a9899d096f47f169b3bacafd6b9883f3b8fdf678", kill_on_drop: false }`
[INFO] [stdout] 0415243385cc5314da62a165a9899d096f47f169b3bacafd6b9883f3b8fdf678
[INFO] checking CaesarXInsanium/cx_failed_terminal_graphics against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaesarXInsanium%2Fcx_failed_terminal_graphics" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics
[INFO] finished tweaking git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics
[INFO] tweaked toml for git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CaesarXInsanium/cx_failed_terminal_graphics 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a938c5c140a79cd50784b37d9388423bd846fc50375beee27a8690e8060b7df
[INFO] running `Command { std: "docker" "start" "-a" "9a938c5c140a79cd50784b37d9388423bd846fc50375beee27a8690e8060b7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a938c5c140a79cd50784b37d9388423bd846fc50375beee27a8690e8060b7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a938c5c140a79cd50784b37d9388423bd846fc50375beee27a8690e8060b7df", kill_on_drop: false }`
[INFO] [stdout] 9a938c5c140a79cd50784b37d9388423bd846fc50375beee27a8690e8060b7df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8eca3745a4d6bb9491ac77c276fb29ce8b4a56edb328d1c85fac87fa5b255bd
[INFO] running `Command { std: "docker" "start" "-a" "d8eca3745a4d6bb9491ac77c276fb29ce8b4a56edb328d1c85fac87fa5b255bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking graphics_scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `light`
[INFO] [stdout]   --> src/light.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for light in lights.iter(){}
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut im = image::DynamicImage::new_rgb8(x as u32, y as u32);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Canvas{
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 148 |     buffer: Vec<Vec<Color>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Canvas` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `light`
[INFO] [stdout]   --> src/light.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for light in lights.iter(){}
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut im = image::DynamicImage::new_rgb8(x as u32, y as u32);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Canvas{
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 148 |     buffer: Vec<Vec<Color>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Canvas` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.63s
[INFO] running `Command { std: "docker" "inspect" "d8eca3745a4d6bb9491ac77c276fb29ce8b4a56edb328d1c85fac87fa5b255bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8eca3745a4d6bb9491ac77c276fb29ce8b4a56edb328d1c85fac87fa5b255bd", kill_on_drop: false }`
[INFO] [stdout] d8eca3745a4d6bb9491ac77c276fb29ce8b4a56edb328d1c85fac87fa5b255bd