[INFO] cloning repository https://github.com/mikebenfield/debug_mixed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikebenfield/debug_mixed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikebenfield%2Fdebug_mixed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikebenfield%2Fdebug_mixed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bc30887c1edf1df0f5052a8a17e3255bc4771c3
[INFO] testing mikebenfield/debug_mixed against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikebenfield%2Fdebug_mixed" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikebenfield/debug_mixed on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikebenfield/debug_mixed
[INFO] finished tweaking git repo https://github.com/mikebenfield/debug_mixed
[INFO] tweaked toml for git repo https://github.com/mikebenfield/debug_mixed written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mikebenfield/debug_mixed already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec3b1f0ad50e3eab36f691918a1d3dd6f378fedfb8e186a71362203af770ff4e
[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" "ec3b1f0ad50e3eab36f691918a1d3dd6f378fedfb8e186a71362203af770ff4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec3b1f0ad50e3eab36f691918a1d3dd6f378fedfb8e186a71362203af770ff4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec3b1f0ad50e3eab36f691918a1d3dd6f378fedfb8e186a71362203af770ff4e", kill_on_drop: false }`
[INFO] [stdout] ec3b1f0ad50e3eab36f691918a1d3dd6f378fedfb8e186a71362203af770ff4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 812aa5d75df927f5f52e8d6f847eec45714800422b1a014d50f6294fa4a51eb7
[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" "812aa5d75df927f5f52e8d6f847eec45714800422b1a014d50f6294fa4a51eb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling debug_mixed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(abi_sysv64)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `abi_sysv64` has been stable since 1.24.0 and no longer requires an attribute to enable
[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 `debug_mixed` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "812aa5d75df927f5f52e8d6f847eec45714800422b1a014d50f6294fa4a51eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "812aa5d75df927f5f52e8d6f847eec45714800422b1a014d50f6294fa4a51eb7", kill_on_drop: false }`
[INFO] [stdout] 812aa5d75df927f5f52e8d6f847eec45714800422b1a014d50f6294fa4a51eb7
