[INFO] fetching crate tuifw-screen 0.11.0...
[INFO] documenting tuifw-screen-0.11.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate tuifw-screen 0.11.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate tuifw-screen 0.11.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tuifw-screen 0.11.0
[INFO] finished tweaking crates.io crate tuifw-screen 0.11.0
[INFO] tweaked toml for crates.io crate tuifw-screen 0.11.0 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate crates.io crate tuifw-screen 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf7049dd75de357c0e8917dc4e9be86fea513d41285ebef542cbe2d60b85637d
[INFO] running `Command { std: "docker" "start" "-a" "cf7049dd75de357c0e8917dc4e9be86fea513d41285ebef542cbe2d60b85637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf7049dd75de357c0e8917dc4e9be86fea513d41285ebef542cbe2d60b85637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf7049dd75de357c0e8917dc4e9be86fea513d41285ebef542cbe2d60b85637d", kill_on_drop: false }`
[INFO] [stdout] cf7049dd75de357c0e8917dc4e9be86fea513d41285ebef542cbe2d60b85637d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63084184b908d15194b583ef708a2f942528da349cde21f833a5f00231443c56
[INFO] running `Command { std: "docker" "start" "-a" "63084184b908d15194b583ef708a2f942528da349cde21f833a5f00231443c56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking enum-derive-2018 v2.0.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking panicking v0.1.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling errno-sys v0.0.1
[INFO] [stderr]    Compiling iconv-sys v0.0.3
[INFO] [stderr]    Compiling tuifw-screen-ncurses v0.11.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling macro-attr-2018 v2.1.0
[INFO] [stderr]     Checking errno-no-std v0.0.4
[INFO] [stderr]     Checking tuifw-screen-base v0.11.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tuifw-screen-base-0.11.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `tuifw-screen-base` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "63084184b908d15194b583ef708a2f942528da349cde21f833a5f00231443c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63084184b908d15194b583ef708a2f942528da349cde21f833a5f00231443c56", kill_on_drop: false }`
[INFO] [stdout] 63084184b908d15194b583ef708a2f942528da349cde21f833a5f00231443c56