[INFO] cloning repository https://github.com/zeroisme/rusic-relm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeroisme/rusic-relm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeroisme%2Frusic-relm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeroisme%2Frusic-relm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 866e6283b2407e1d52d857973f922dd2325e3368
[INFO] testing zeroisme/rusic-relm against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeroisme%2Frusic-relm" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zeroisme/rusic-relm on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zeroisme/rusic-relm
[INFO] finished tweaking git repo https://github.com/zeroisme/rusic-relm
[INFO] tweaked toml for git repo https://github.com/zeroisme/rusic-relm written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/zeroisme/rusic-relm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66cb43d311f264bda4a34a498a8724c68b9dfa7f3599d0c076a025a085a16d88
[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" "66cb43d311f264bda4a34a498a8724c68b9dfa7f3599d0c076a025a085a16d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66cb43d311f264bda4a34a498a8724c68b9dfa7f3599d0c076a025a085a16d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66cb43d311f264bda4a34a498a8724c68b9dfa7f3599d0c076a025a085a16d88", kill_on_drop: false }`
[INFO] [stdout] 66cb43d311f264bda4a34a498a8724c68b9dfa7f3599d0c076a025a085a16d88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ca4e125c911a5a154f7f4ee58e1b93b22aaa04db3f9bc876976eb335af933d0
[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" "1ca4e125c911a5a154f7f4ee58e1b93b22aaa04db3f9bc876976eb335af933d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling gio v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling gdk v0.7.0
[INFO] [stderr]    Compiling c_vec v1.2.1
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling gtk v0.3.0
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling pango-sys v0.5.0
[INFO] [stderr]    Compiling gdk-sys v0.5.0
[INFO] [stderr]    Compiling atk-sys v0.5.0
[INFO] [stderr]    Compiling gtk-sys v0.5.0
[INFO] [stderr]    Compiling libpulse-sys v1.13.1
[INFO] [stderr]    Compiling libpulse-simple-sys v1.13.1
[INFO] [stderr]    Compiling simplemad_sys v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling pulse-simple v1.0.1
[INFO] [stderr]    Compiling m3u v1.0.0
[INFO] [stderr]    Compiling simplemad v0.8.1
[INFO] [stderr]    Compiling futures-glib v0.3.2
[INFO] [stderr]    Compiling relm-core v0.11.0
[INFO] [stderr]    Compiling relm-state v0.11.0
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling relm-gen-widget v0.11.0
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling relm-derive-common v0.11.0
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling id3 v0.2.5
[INFO] [stderr]    Compiling pango v0.3.0
[INFO] [stderr]    Compiling relm-derive v0.11.0
[INFO] [stderr]    Compiling relm-attributes v0.11.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/relm-attributes-0.11.0/src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(proc_macro)]
[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 `relm-attributes`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1ca4e125c911a5a154f7f4ee58e1b93b22aaa04db3f9bc876976eb335af933d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ca4e125c911a5a154f7f4ee58e1b93b22aaa04db3f9bc876976eb335af933d0", kill_on_drop: false }`
[INFO] [stdout] 1ca4e125c911a5a154f7f4ee58e1b93b22aaa04db3f9bc876976eb335af933d0