[INFO] cloning repository https://github.com/LucasIME/rustascii
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LucasIME/rustascii" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasIME%2Frustascii", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasIME%2Frustascii'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ecf238e5f81f9e2bdba6e23c035eb8443eefcc8
[INFO] checking LucasIME/rustascii against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasIME%2Frustascii" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LucasIME/rustascii on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LucasIME/rustascii
[INFO] finished tweaking git repo https://github.com/LucasIME/rustascii
[INFO] tweaked toml for git repo https://github.com/LucasIME/rustascii written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/LucasIME/rustascii already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--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 bytemuck v1.3.1
[INFO] [stderr]   Downloaded terminal_size v0.1.13
[INFO] [stderr]   Downloaded image v0.23.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f86360ee069181be28a101d0364effa8f903ebd5d5be130c7393cc92691c87f
[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" "1f86360ee069181be28a101d0364effa8f903ebd5d5be130c7393cc92691c87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f86360ee069181be28a101d0364effa8f903ebd5d5be130c7393cc92691c87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f86360ee069181be28a101d0364effa8f903ebd5d5be130c7393cc92691c87f", kill_on_drop: false }`
[INFO] [stdout] 1f86360ee069181be28a101d0364effa8f903ebd5d5be130c7393cc92691c87f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df093567f1c96687cd3cefda8cbc03e9ef2750bc23f4928a9eff11cc28e2fbae
[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" "df093567f1c96687cd3cefda8cbc03e9ef2750bc23f4928a9eff11cc28e2fbae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustascii v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Average`
[INFO] [stdout]  --> src/brightnessconverter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Average,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lightness`
[INFO] [stdout]  --> src/brightnessconverter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Lightness,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OriginalSize`
[INFO] [stdout]   --> src/options.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     OriginalSize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FixedSize`
[INFO] [stdout]   --> src/options.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     FixedSize(u32, u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Average`
[INFO] [stdout]  --> src/brightnessconverter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Average,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lightness`
[INFO] [stdout]  --> src/brightnessconverter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Lightness,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OriginalSize`
[INFO] [stdout]   --> src/options.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     OriginalSize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FixedSize`
[INFO] [stdout]   --> src/options.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     FixedSize(u32, u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "df093567f1c96687cd3cefda8cbc03e9ef2750bc23f4928a9eff11cc28e2fbae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df093567f1c96687cd3cefda8cbc03e9ef2750bc23f4928a9eff11cc28e2fbae", kill_on_drop: false }`
[INFO] [stdout] df093567f1c96687cd3cefda8cbc03e9ef2750bc23f4928a9eff11cc28e2fbae