[INFO] fetching crate emoji-crafter 0.1.2...
[INFO] testing emoji-crafter-0.1.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate emoji-crafter 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate emoji-crafter 0.1.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate emoji-crafter 0.1.2
[INFO] finished tweaking crates.io crate emoji-crafter 0.1.2
[INFO] tweaked toml for crates.io crate emoji-crafter 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate emoji-crafter 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] bf31424e4e8cacadcc11aec64197cf9ff5cedf07b806201ff5bbb223de10a4c1
[INFO] running `Command { std: "docker" "start" "-a" "bf31424e4e8cacadcc11aec64197cf9ff5cedf07b806201ff5bbb223de10a4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf31424e4e8cacadcc11aec64197cf9ff5cedf07b806201ff5bbb223de10a4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf31424e4e8cacadcc11aec64197cf9ff5cedf07b806201ff5bbb223de10a4c1", kill_on_drop: false }`
[INFO] [stdout] bf31424e4e8cacadcc11aec64197cf9ff5cedf07b806201ff5bbb223de10a4c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99fe112399c55a1b925388ef607456342ec4a601449f0021add135687219191c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99fe112399c55a1b925388ef607456342ec4a601449f0021add135687219191c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling unicode-ccc v0.1.2
[INFO] [stderr]    Compiling xmlparser v0.13.3
[INFO] [stderr]    Compiling unicode-script v0.5.3
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling unicode-bidi-mirroring v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling unicode-vo v0.1.0
[INFO] [stderr]    Compiling rctree v0.4.0
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling libwebp-sys2 v0.1.2
[INFO] [stderr]    Compiling deflate v0.9.1
[INFO] [stderr]    Compiling data-url v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling svgtypes v0.8.0
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling safe_arch v0.5.2
[INFO] [stderr]    Compiling simplecss v0.2.1
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling roxmltree v0.14.1
[INFO] [stderr]    Compiling kurbo v0.8.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling svgfilters v0.4.0
[INFO] [stderr]    Compiling png v0.17.1
[INFO] [stderr]    Compiling rustybuzz v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling memmap2 v0.3.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling nix v0.22.1
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling fontdb v0.6.2
[INFO] [stderr]    Compiling tiny-skia v0.6.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling webp-animation v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling notify v4.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]    Compiling usvg v0.18.0
[INFO] [stderr]    Compiling structopt v0.3.23
[INFO] [stderr]    Compiling resvg v0.18.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling clearscreen v1.0.7
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling emoji-crafter v0.1.2 (/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(trait_alias)]
[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 `emoji-crafter` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "99fe112399c55a1b925388ef607456342ec4a601449f0021add135687219191c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99fe112399c55a1b925388ef607456342ec4a601449f0021add135687219191c", kill_on_drop: false }`
[INFO] [stdout] 99fe112399c55a1b925388ef607456342ec4a601449f0021add135687219191c