[INFO] cloning repository https://github.com/alexjg/link-crypt-compiler-error
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexjg/link-crypt-compiler-error" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexjg%2Flink-crypt-compiler-error", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexjg%2Flink-crypt-compiler-error'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 429347c74228160c9702a91d383bd85373cf0491
[INFO] testing alexjg/link-crypt-compiler-error against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexjg%2Flink-crypt-compiler-error" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexjg/link-crypt-compiler-error on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/alexjg/link-crypt-compiler-error
[INFO] finished tweaking git repo https://github.com/alexjg/link-crypt-compiler-error
[INFO] tweaked toml for git repo https://github.com/alexjg/link-crypt-compiler-error written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alexjg/link-crypt-compiler-error already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/FintanH/thrussh.git`
[INFO] [stderr]     Updating git repository `https://github.com/radicle-dev/radicle-link.git`
[INFO] [stderr]     Updating git repository `https://github.com/radicle-dev/radicle-keystore`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded salsa20 v0.8.1
[INFO] [stderr]   Downloaded multibase v0.9.1
[INFO] [stderr]   Downloaded scrypt v0.8.0
[INFO] [stderr]   Downloaded chacha20 v0.8.1
[INFO] [stderr]   Downloaded chacha20poly1305 v0.9.0
[INFO] [stderr]   Downloaded git2 v0.13.23
[INFO] [stderr]   Downloaded minicbor v0.9.1
[INFO] [stderr]   Downloaded cryptovec v0.6.1
[INFO] [stderr]   Downloaded serde_cbor v0.10.2
[INFO] [stderr]   Downloaded libgit2-sys v0.12.24+1.3.0
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] [stderr]   Downloaded ed25519-zebra v3.0.0
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded multihash v0.11.4
[INFO] [stderr]   Downloaded secstr v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 577fe06c6b87a0ad27bd1838843785a1f02d17e81aeb35cf5099296bc1ad9218
[INFO] running `Command { std: "docker" "start" "-a" "577fe06c6b87a0ad27bd1838843785a1f02d17e81aeb35cf5099296bc1ad9218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "577fe06c6b87a0ad27bd1838843785a1f02d17e81aeb35cf5099296bc1ad9218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "577fe06c6b87a0ad27bd1838843785a1f02d17e81aeb35cf5099296bc1ad9218", kill_on_drop: false }`
[INFO] [stdout] 577fe06c6b87a0ad27bd1838843785a1f02d17e81aeb35cf5099296bc1ad9218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b07fdf549568a6ac805482812cf6e4bfa75f10954222e87dd38dee1ff05266a4
[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" "b07fdf549568a6ac805482812cf6e4bfa75f10954222e87dd38dee1ff05266a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling unsigned-varint v0.5.1
[INFO] [stderr]    Compiling base-x v0.2.8
[INFO] [stderr]    Compiling radicle-std-ext v0.1.0 (https://github.com/radicle-dev/radicle-link.git?rev=5d3266b470cd40bf9de8ea71d83e40ad43edf123#5d3266b4)
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling blake2s_simd v0.5.11
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.10
[INFO] [stderr]    Compiling minicbor-derive v0.6.4
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/radicle-link-009c17032bc5eda9/5d3266b/std-ext/src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(extend_one)]
[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 `radicle-std-ext` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b07fdf549568a6ac805482812cf6e4bfa75f10954222e87dd38dee1ff05266a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b07fdf549568a6ac805482812cf6e4bfa75f10954222e87dd38dee1ff05266a4", kill_on_drop: false }`
[INFO] [stdout] b07fdf549568a6ac805482812cf6e4bfa75f10954222e87dd38dee1ff05266a4