[INFO] cloning repository https://github.com/asmoaesl/rscplot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asmoaesl/rscplot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasmoaesl%2Frscplot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasmoaesl%2Frscplot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7b4c554858569326aa73d554c2c19dc34883904
[INFO] checking asmoaesl/rscplot against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasmoaesl%2Frscplot" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/asmoaesl/rscplot on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/asmoaesl/rscplot
[INFO] finished tweaking git repo https://github.com/asmoaesl/rscplot
[INFO] tweaked toml for git repo https://github.com/asmoaesl/rscplot written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/asmoaesl/rscplot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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] 54bbca0b0d9106689515d389425438c14619270b5f40dab88211cc93dd25eebd
[INFO] running `Command { std: "docker" "start" "-a" "54bbca0b0d9106689515d389425438c14619270b5f40dab88211cc93dd25eebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54bbca0b0d9106689515d389425438c14619270b5f40dab88211cc93dd25eebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54bbca0b0d9106689515d389425438c14619270b5f40dab88211cc93dd25eebd", kill_on_drop: false }`
[INFO] [stdout] 54bbca0b0d9106689515d389425438c14619270b5f40dab88211cc93dd25eebd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce88e78c0cb9c99a78fb6af1c0bffc516c4204e94b511bf7d3bc8492eb34fd68
[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" "ce88e78c0cb9c99a78fb6af1c0bffc516c4204e94b511bf7d3bc8492eb34fd68", kill_on_drop: false }`
[INFO] [stderr]     Checking rsc v1.2.0 (https://github.com/asmoaesl/rsc.git#33b91a3e)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rsc-46fa939093e15433/33b91a3/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsc`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ce88e78c0cb9c99a78fb6af1c0bffc516c4204e94b511bf7d3bc8492eb34fd68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce88e78c0cb9c99a78fb6af1c0bffc516c4204e94b511bf7d3bc8492eb34fd68", kill_on_drop: false }`
[INFO] [stdout] ce88e78c0cb9c99a78fb6af1c0bffc516c4204e94b511bf7d3bc8492eb34fd68