[INFO] fetching crate snail_image_obfuscate 1.0.1...
[INFO] testing snail_image_obfuscate-1.0.1 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate snail_image_obfuscate 1.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate snail_image_obfuscate 1.0.1 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 snail_image_obfuscate 1.0.1
[INFO] finished tweaking crates.io crate snail_image_obfuscate 1.0.1
[INFO] tweaked toml for crates.io crate snail_image_obfuscate 1.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate snail_image_obfuscate 1.0.1 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 epi v0.15.0
[INFO] [stderr]   Downloaded egui_web v0.15.0
[INFO] [stderr]   Downloaded emath v0.15.0
[INFO] [stderr]   Downloaded glutin v0.27.0
[INFO] [stderr]   Downloaded linkify v0.7.0
[INFO] [stderr]   Downloaded cansi v2.1.1
[INFO] [stderr]   Downloaded egui-winit v0.15.0
[INFO] [stderr]   Downloaded egui_glow v0.15.0
[INFO] [stderr]   Downloaded native-dialog v0.5.8
[INFO] [stderr]   Downloaded egui v0.15.0
[INFO] [stderr]   Downloaded eframe v0.15.0
[INFO] [stderr]   Downloaded klask v1.0.0
[INFO] [stderr]   Downloaded wfd v0.1.7
[INFO] [stderr]   Downloaded copypasta v0.7.1
[INFO] [stderr]   Downloaded epaint v0.15.0
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3df5d748ecfe5665a86aaeb165c02e8f67e2f435250eea6ef9a3b92ae27909be
[INFO] running `Command { std: "docker" "start" "-a" "3df5d748ecfe5665a86aaeb165c02e8f67e2f435250eea6ef9a3b92ae27909be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3df5d748ecfe5665a86aaeb165c02e8f67e2f435250eea6ef9a3b92ae27909be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df5d748ecfe5665a86aaeb165c02e8f67e2f435250eea6ef9a3b92ae27909be", kill_on_drop: false }`
[INFO] [stdout] 3df5d748ecfe5665a86aaeb165c02e8f67e2f435250eea6ef9a3b92ae27909be
[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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 579e1960f6d282b3111a3413f76107ccd8b78fc14527ccc7f9067fb258aef5d2
[INFO] running `Command { std: "docker" "start" "-a" "579e1960f6d282b3111a3413f76107ccd8b78fc14527ccc7f9067fb258aef5d2", kill_on_drop: false }`
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[INFO] [stderr]    Compiling klask v1.0.0
[INFO] [stderr]    Compiling snail_image_obfuscate v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators, generator_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators, generator_trait)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snail_image_obfuscate` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "579e1960f6d282b3111a3413f76107ccd8b78fc14527ccc7f9067fb258aef5d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "579e1960f6d282b3111a3413f76107ccd8b78fc14527ccc7f9067fb258aef5d2", kill_on_drop: false }`
[INFO] [stdout] 579e1960f6d282b3111a3413f76107ccd8b78fc14527ccc7f9067fb258aef5d2
