[INFO] fetching crate itui 0.7.0...
[INFO] testing itui-0.7.0 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate itui 0.7.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate itui 0.7.0 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 itui 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate itui 0.7.0
[INFO] tweaked toml for crates.io crate itui 0.7.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate itui 0.7.0 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 termcolor v0.3.6
[INFO] [stderr]   Downloaded rustbox v0.11.0
[INFO] [stderr]   Downloaded bitflags v0.2.1
[INFO] [stderr]   Downloaded cc v1.0.38
[INFO] [stderr]   Downloaded ncurses v5.99.0
[INFO] [stderr]   Downloaded pkg-config v0.3.15
[INFO] [stderr]   Downloaded backtrace v0.3.33
[INFO] [stderr]   Downloaded crossterm_utils v0.2.4
[INFO] [stderr]   Downloaded crossterm_winapi v0.1.5
[INFO] [stderr]   Downloaded crossterm v0.9.6
[INFO] [stderr]   Downloaded autocfg v0.1.5
[INFO] [stderr]   Downloaded syn v0.15.42
[INFO] [stderr]   Downloaded crossterm_input v0.3.8
[INFO] [stderr]   Downloaded termbox-sys v0.2.11
[INFO] [stderr]   Downloaded sauron_vdom v0.10.0
[INFO] [stderr]   Downloaded crossterm_screen v0.2.4
[INFO] [stderr]   Downloaded crossterm_style v0.3.4
[INFO] [stderr]   Downloaded crossterm_cursor v0.2.5
[INFO] [stderr]   Downloaded crossterm_terminal v0.2.5
[INFO] [stderr]   Downloaded easycurses v0.12.2
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded pancurses v0.16.1
[INFO] [stderr]   Downloaded gag v0.1.10
[INFO] [stderr]   Downloaded log v0.4.7
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded stderrlog v0.4.1
[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] 5577052cf7a9ce52d47656a0e0555dc539e2787668a32e039f5e08e91f2b7cb6
[INFO] running `Command { std: "docker" "start" "-a" "5577052cf7a9ce52d47656a0e0555dc539e2787668a32e039f5e08e91f2b7cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5577052cf7a9ce52d47656a0e0555dc539e2787668a32e039f5e08e91f2b7cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5577052cf7a9ce52d47656a0e0555dc539e2787668a32e039f5e08e91f2b7cb6", kill_on_drop: false }`
[INFO] [stdout] 5577052cf7a9ce52d47656a0e0555dc539e2787668a32e039f5e08e91f2b7cb6
[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] e73c022cc141ed6e24d42ad2edbcc69f60f311a8dada4b913edcf173be3acb17
[INFO] running `Command { std: "docker" "start" "-a" "e73c022cc141ed6e24d42ad2edbcc69f60f311a8dada4b913edcf173be3acb17", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling sauron_vdom v0.10.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/sauron_vdom-0.10.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(arbitrary_self_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sauron_vdom` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e73c022cc141ed6e24d42ad2edbcc69f60f311a8dada4b913edcf173be3acb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e73c022cc141ed6e24d42ad2edbcc69f60f311a8dada4b913edcf173be3acb17", kill_on_drop: false }`
[INFO] [stdout] e73c022cc141ed6e24d42ad2edbcc69f60f311a8dada4b913edcf173be3acb17
