[INFO] fetching crate screenruster-saver-laughing_man 0.2.1...
[INFO] documenting screenruster-saver-laughing_man-0.2.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate screenruster-saver-laughing_man 0.2.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate screenruster-saver-laughing_man 0.2.1 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 screenruster-saver-laughing_man 0.2.1
[INFO] finished tweaking crates.io crate screenruster-saver-laughing_man 0.2.1
[INFO] tweaked toml for crates.io crate screenruster-saver-laughing_man 0.2.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate screenruster-saver-laughing_man 0.2.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 547ef3d9c2d5089696f54c506bdc42ac445b1a24572eccb1c5ab37f4ea451532
[INFO] running `Command { std: "docker" "start" "-a" "547ef3d9c2d5089696f54c506bdc42ac445b1a24572eccb1c5ab37f4ea451532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547ef3d9c2d5089696f54c506bdc42ac445b1a24572eccb1c5ab37f4ea451532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547ef3d9c2d5089696f54c506bdc42ac445b1a24572eccb1c5ab37f4ea451532", kill_on_drop: false }`
[INFO] [stdout] 547ef3d9c2d5089696f54c506bdc42ac445b1a24572eccb1c5ab37f4ea451532
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 229de7e2f4c9749f2d98e2e35c995e8c78a6e22cb97eeacc454e15bbf7266c91
[INFO] running `Command { std: "docker" "start" "-a" "229de7e2f4c9749f2d98e2e35c995e8c78a6e22cb97eeacc454e15bbf7266c91", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking takeable-option v0.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking exoquant v0.2.0
[INFO] [stderr]     Checking json v0.12.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking alga v0.9.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling glium v0.25.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.2.1
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking xyz v0.2.1
[INFO] [stderr]     Checking imagefmt v4.0.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking picto v0.4.3
[INFO] [stderr]     Checking screenruster-saver v0.2.2
[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/screenruster-saver-0.2.2/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(type_ascription)]
[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 `screenruster-saver` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "229de7e2f4c9749f2d98e2e35c995e8c78a6e22cb97eeacc454e15bbf7266c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "229de7e2f4c9749f2d98e2e35c995e8c78a6e22cb97eeacc454e15bbf7266c91", kill_on_drop: false }`
[INFO] [stdout] 229de7e2f4c9749f2d98e2e35c995e8c78a6e22cb97eeacc454e15bbf7266c91