[INFO] fetching crate msp430fr2x5x-hal 0.2.2...
[INFO] documenting msp430fr2x5x-hal-0.2.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate msp430fr2x5x-hal 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate msp430fr2x5x-hal 0.2.2 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking crates.io crate msp430fr2x5x-hal 0.2.2
[INFO] finished tweaking crates.io crate msp430fr2x5x-hal 0.2.2
[INFO] tweaked toml for crates.io crate msp430fr2x5x-hal 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate msp430fr2x5x-hal 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded msp430-atomic v0.1.1
[INFO] [stderr]   Downloaded panic-msp430 v0.2.0
[INFO] [stderr]   Downloaded panic-never v0.1.0
[INFO] [stderr]   Downloaded msp430 v0.2.0
[INFO] [stderr]   Downloaded msp430fr2355 v0.4.1
[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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27b7852112ae86dee9a635eb2c2b3aa74e965915206441a69db081e8b7f02059
[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" "27b7852112ae86dee9a635eb2c2b3aa74e965915206441a69db081e8b7f02059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27b7852112ae86dee9a635eb2c2b3aa74e965915206441a69db081e8b7f02059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b7852112ae86dee9a635eb2c2b3aa74e965915206441a69db081e8b7f02059", kill_on_drop: false }`
[INFO] [stdout] 27b7852112ae86dee9a635eb2c2b3aa74e965915206441a69db081e8b7f02059
[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" "RUSTDOCFLAGS=--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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8543d44408f09e08c9464386ee8ba560f4f8c263c2d7b3bf9b78c53fa5538ce
[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" "c8543d44408f09e08c9464386ee8ba560f4f8c263c2d7b3bf9b78c53fa5538ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling msp430-rt v0.2.4
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]    Compiling msp430fr2355 v0.4.1
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking msp430-atomic v0.1.1
[INFO] [stderr]     Checking nb v0.1.2
[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/msp430-atomic-0.1.1/src/lib.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | #![feature(asm)]
[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/msp430-atomic-0.1.1/src/lib.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | #![feature(const_fn)]
[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/msp430-atomic-0.1.1/src/lib.rs:73:42
[INFO] [stdout]    |
[INFO] [stdout] 73 | #![cfg_attr(not(target_arch = "msp430"), feature(core_intrinsics))]
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `msp430-atomic`.
[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" "c8543d44408f09e08c9464386ee8ba560f4f8c263c2d7b3bf9b78c53fa5538ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8543d44408f09e08c9464386ee8ba560f4f8c263c2d7b3bf9b78c53fa5538ce", kill_on_drop: false }`
[INFO] [stdout] c8543d44408f09e08c9464386ee8ba560f4f8c263c2d7b3bf9b78c53fa5538ce