[INFO] fetching crate card10-l0dable 0.3.0...
[INFO] testing card10-l0dable-0.3.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate card10-l0dable 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate card10-l0dable 0.3.0 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] started tweaking crates.io crate card10-l0dable 0.3.0
[INFO] finished tweaking crates.io crate card10-l0dable 0.3.0
[INFO] tweaked toml for crates.io crate card10-l0dable 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 card10-sys v1.10.0
[INFO] [stderr]   Downloaded embedded-graphics v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ac1d775de92f76211bd270791b9c9ff165da0f04bca097d8fac321eaa6fb927b
[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" "ac1d775de92f76211bd270791b9c9ff165da0f04bca097d8fac321eaa6fb927b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac1d775de92f76211bd270791b9c9ff165da0f04bca097d8fac321eaa6fb927b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1d775de92f76211bd270791b9c9ff165da0f04bca097d8fac321eaa6fb927b", kill_on_drop: false }`
[INFO] [stdout] ac1d775de92f76211bd270791b9c9ff165da0f04bca097d8fac321eaa6fb927b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 709e80328048ee12050d3a2a0ab6d538a9bbdda17ec9ef58e42f79e63d3db08a
[INFO] running `Command { std: "docker" "start" "-a" "709e80328048ee12050d3a2a0ab6d538a9bbdda17ec9ef58e42f79e63d3db08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling panic-abort v0.3.2
[INFO] [stderr]    Compiling embedded-graphics v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.3.2/src/lib.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(core_intrinsics)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.3.2/src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #![feature(panic_handler)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panic-abort`
[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" "709e80328048ee12050d3a2a0ab6d538a9bbdda17ec9ef58e42f79e63d3db08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709e80328048ee12050d3a2a0ab6d538a9bbdda17ec9ef58e42f79e63d3db08a", kill_on_drop: false }`
[INFO] [stdout] 709e80328048ee12050d3a2a0ab6d538a9bbdda17ec9ef58e42f79e63d3db08a
