[INFO] fetching crate dots-and-boxes 0.1.0...
[INFO] testing dots-and-boxes-0.1.0 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate dots-and-boxes 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate dots-and-boxes 0.1.0 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dots-and-boxes 0.1.0
[INFO] finished tweaking crates.io crate dots-and-boxes 0.1.0
[INFO] tweaked toml for crates.io crate dots-and-boxes 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate dots-and-boxes 0.1.0 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded version-compare v0.1.0
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f819064e430277154c99fbb2956555752b178144f8310ad0c56e40ac9b78bcf
[INFO] running `Command { std: "docker" "start" "-a" "6f819064e430277154c99fbb2956555752b178144f8310ad0c56e40ac9b78bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f819064e430277154c99fbb2956555752b178144f8310ad0c56e40ac9b78bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f819064e430277154c99fbb2956555752b178144f8310ad0c56e40ac9b78bcf", kill_on_drop: false }`
[INFO] [stdout] 6f819064e430277154c99fbb2956555752b178144f8310ad0c56e40ac9b78bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b60665433a3d28a134e76ed03acba65cfafb99439359bd8167ceae16e8c0a573
[INFO] running `Command { std: "docker" "start" "-a" "b60665433a3d28a134e76ed03acba65cfafb99439359bd8167ceae16e8c0a573", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]    Compiling dots-and-boxes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `COLOR_NAMES`
[INFO] [stdout]  --> src/options.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::colors::{COLOR_NAMES, self};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(string_remove_matches)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dots-and-boxes` (bin "dots-and-boxes") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b60665433a3d28a134e76ed03acba65cfafb99439359bd8167ceae16e8c0a573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b60665433a3d28a134e76ed03acba65cfafb99439359bd8167ceae16e8c0a573", kill_on_drop: false }`
[INFO] [stdout] b60665433a3d28a134e76ed03acba65cfafb99439359bd8167ceae16e8c0a573
