[INFO] cloning repository https://github.com/quasarj/rustyray
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quasarj/rustyray" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquasarj%2Frustyray", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquasarj%2Frustyray'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b8835f9a60bd4248e6008ec2e8cfcf3be798d85
[INFO] testing quasarj/rustyray against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquasarj%2Frustyray" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/quasarj/rustyray
[INFO] finished tweaking git repo https://github.com/quasarj/rustyray
[INFO] tweaked toml for git repo https://github.com/quasarj/rustyray written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/quasarj/rustyray on toolchain b03b3a7ec92682be2917540b679478d41c95a30c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/quasarj/rustyray 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" "+b03b3a7ec92682be2917540b679478d41c95a30c" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e4a9610f1be1fb7ee23575fb435bb1a97edc6201a34ffc87691ed1ad3056d82
[INFO] running `Command { std: "docker" "start" "-a" "7e4a9610f1be1fb7ee23575fb435bb1a97edc6201a34ffc87691ed1ad3056d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e4a9610f1be1fb7ee23575fb435bb1a97edc6201a34ffc87691ed1ad3056d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4a9610f1be1fb7ee23575fb435bb1a97edc6201a34ffc87691ed1ad3056d82", kill_on_drop: false }`
[INFO] [stdout] 7e4a9610f1be1fb7ee23575fb435bb1a97edc6201a34ffc87691ed1ad3056d82
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d98edeee3c63af866d7471a107721426ff54cc06a4d11a4cff5ca47f7c98e619
[INFO] running `Command { std: "docker" "start" "-a" "d98edeee3c63af866d7471a107721426ff54cc06a4d11a4cff5ca47f7c98e619", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustyray v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]  --> src/canvas.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Canvas {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     length: i32
[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: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/canvas.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         mem::replace::<Color>(&mut self.pixels[pos as usize], pixel);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = mem::replace::<Color>(&mut self.pixels[pos as usize], pixel);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d98edeee3c63af866d7471a107721426ff54cc06a4d11a4cff5ca47f7c98e619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98edeee3c63af866d7471a107721426ff54cc06a4d11a4cff5ca47f7c98e619", kill_on_drop: false }`
[INFO] [stdout] d98edeee3c63af866d7471a107721426ff54cc06a4d11a4cff5ca47f7c98e619
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f96290f6284038acdcdebf1b35756fcf82dfd44eb71873288e9dd13b592381c
[INFO] running `Command { std: "docker" "start" "-a" "2f96290f6284038acdcdebf1b35756fcf82dfd44eb71873288e9dd13b592381c", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/2f96290f6284038acdcdebf1b35756fcf82dfd44eb71873288e9dd13b592381c/hosts: no space left on device
[INFO] running `Command { std: "docker" "inspect" "2f96290f6284038acdcdebf1b35756fcf82dfd44eb71873288e9dd13b592381c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f96290f6284038acdcdebf1b35756fcf82dfd44eb71873288e9dd13b592381c", kill_on_drop: false }`
[INFO] [stdout] 2f96290f6284038acdcdebf1b35756fcf82dfd44eb71873288e9dd13b592381c