[INFO] cloning repository https://github.com/threema-ch/compose-area
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/threema-ch/compose-area" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthreema-ch%2Fcompose-area", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthreema-ch%2Fcompose-area'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2b961bbd6ae4854da031d3117d4f556511cb951
[INFO] testing threema-ch/compose-area against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthreema-ch%2Fcompose-area" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/threema-ch/compose-area on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/.cargo/config
[INFO] started tweaking git repo https://github.com/threema-ch/compose-area
[INFO] finished tweaking git repo https://github.com/threema-ch/compose-area
[INFO] tweaked toml for git repo https://github.com/threema-ch/compose-area written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/threema-ch/compose-area already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console_log v0.2.0
[INFO] [stderr]   Downloaded html-macro v0.1.9
[INFO] [stderr]   Downloaded virtual-node v0.2.7
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.13
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.13
[INFO] [stderr]   Downloaded virtual-dom-rs v0.6.14
[INFO] [stderr]   Downloaded html-validation v0.1.2
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0117296cc3f93349ff9b646fc6522699e9f9501a5be6c1ea556c70176a8876b8
[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" "0117296cc3f93349ff9b646fc6522699e9f9501a5be6c1ea556c70176a8876b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0117296cc3f93349ff9b646fc6522699e9f9501a5be6c1ea556c70176a8876b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0117296cc3f93349ff9b646fc6522699e9f9501a5be6c1ea556c70176a8876b8", kill_on_drop: false }`
[INFO] [stdout] 0117296cc3f93349ff9b646fc6522699e9f9501a5be6c1ea556c70176a8876b8
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef52ec6d6fb770a5bf6273f47127281e93508297c9cef1d9b2b116aaeacfbf0c
[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" "ef52ec6d6fb770a5bf6273f47127281e93508297c9cef1d9b2b116aaeacfbf0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.63
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.63
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.63
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.63
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.63
[INFO] [stderr]    Compiling js-sys v0.3.40
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling web-sys v0.3.40
[INFO] [stderr]    Compiling console_log v0.2.0
[INFO] [stderr]    Compiling compose-area v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.83s
[INFO] running `Command { std: "docker" "inspect" "ef52ec6d6fb770a5bf6273f47127281e93508297c9cef1d9b2b116aaeacfbf0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef52ec6d6fb770a5bf6273f47127281e93508297c9cef1d9b2b116aaeacfbf0c", kill_on_drop: false }`
[INFO] [stdout] ef52ec6d6fb770a5bf6273f47127281e93508297c9cef1d9b2b116aaeacfbf0c
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e2b6c5044f4f064910579004e980951e6ca0129aea6da38e7454685fc57a3f8
[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" "7e2b6c5044f4f064910579004e980951e6ca0129aea6da38e7454685fc57a3f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.13
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.13
[INFO] [stderr]    Compiling virtual-node v0.2.7
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.13
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling html-macro v0.1.9
[INFO] [stderr]    Compiling virtual-dom-rs v0.6.14
[INFO] [stderr]    Compiling compose-area v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(proc_macro_hygiene))]
[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 `compose-area`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7e2b6c5044f4f064910579004e980951e6ca0129aea6da38e7454685fc57a3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e2b6c5044f4f064910579004e980951e6ca0129aea6da38e7454685fc57a3f8", kill_on_drop: false }`
[INFO] [stdout] 7e2b6c5044f4f064910579004e980951e6ca0129aea6da38e7454685fc57a3f8
