[INFO] cloning repository https://github.com/xnor99/fraktaloj_gui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xnor99/fraktaloj_gui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnor99%2Ffraktaloj_gui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnor99%2Ffraktaloj_gui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd9df816e9998155f95d65f5d81f6cd8107e0bf0
[INFO] checking xnor99/fraktaloj_gui against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnor99%2Ffraktaloj_gui" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xnor99/fraktaloj_gui
[INFO] finished tweaking git repo https://github.com/xnor99/fraktaloj_gui
[INFO] tweaked toml for git repo https://github.com/xnor99/fraktaloj_gui written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xnor99/fraktaloj_gui on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xnor99/fraktaloj_gui 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.56
[INFO] [stderr]   Downloaded thiserror-impl v1.0.56
[INFO] [stderr]   Downloaded cl3 v0.9.5
[INFO] [stderr]   Downloaded opencl-sys v0.2.8
[INFO] [stderr]   Downloaded opencl3 v0.9.5
[INFO] [stderr]   Downloaded sdl2 v0.36.0
[INFO] [stderr]   Downloaded sdl2-sys v0.36.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0339056ddebe8403feed48aa6fb2ae3976f8793c7ca74e16104a4d40712531d4
[INFO] running `Command { std: "docker" "start" "-a" "0339056ddebe8403feed48aa6fb2ae3976f8793c7ca74e16104a4d40712531d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0339056ddebe8403feed48aa6fb2ae3976f8793c7ca74e16104a4d40712531d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0339056ddebe8403feed48aa6fb2ae3976f8793c7ca74e16104a4d40712531d4", kill_on_drop: false }`
[INFO] [stdout] 0339056ddebe8403feed48aa6fb2ae3976f8793c7ca74e16104a4d40712531d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41b9fe571142fca1350ffc6d967fb3946a2c574f5506d2410b64d314ec8041ad
[INFO] running `Command { std: "docker" "start" "-a" "41b9fe571142fca1350ffc6d967fb3946a2c574f5506d2410b64d314ec8041ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling opencl-sys v0.2.8
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling sdl2-sys v0.36.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking cl3 v0.9.5
[INFO] [stderr]     Checking opencl3 v0.9.5
[INFO] [stderr]     Checking fraktaloj_gui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fraktaloj_gui` (bin "fraktaloj_gui") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fraktaloj_gui` (bin "fraktaloj_gui" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "41b9fe571142fca1350ffc6d967fb3946a2c574f5506d2410b64d314ec8041ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b9fe571142fca1350ffc6d967fb3946a2c574f5506d2410b64d314ec8041ad", kill_on_drop: false }`
[INFO] [stdout] 41b9fe571142fca1350ffc6d967fb3946a2c574f5506d2410b64d314ec8041ad
