[INFO] fetching crate msp430g2553 0.2.0...
[INFO] testing msp430g2553-0.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate msp430g2553 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate msp430g2553 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate msp430g2553 0.2.0
[INFO] finished tweaking crates.io crate msp430g2553 0.2.0
[INFO] tweaked toml for crates.io crate msp430g2553 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79d7e5e2d9331d4f206d49ac33b5b407f45ed7dfd21fe30d4e61748787d15816
[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" "79d7e5e2d9331d4f206d49ac33b5b407f45ed7dfd21fe30d4e61748787d15816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79d7e5e2d9331d4f206d49ac33b5b407f45ed7dfd21fe30d4e61748787d15816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d7e5e2d9331d4f206d49ac33b5b407f45ed7dfd21fe30d4e61748787d15816", kill_on_drop: false }`
[INFO] [stdout] 79d7e5e2d9331d4f206d49ac33b5b407f45ed7dfd21fe30d4e61748787d15816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f5d0cd0e1722b00e65e50c9cf0445bcee2e69b5f5ff6c7e511887e1841e4b29
[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" "0f5d0cd0e1722b00e65e50c9cf0445bcee2e69b5f5ff6c7e511887e1841e4b29", kill_on_drop: false }`
[INFO] [stderr]    Compiling msp430g2553 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling msp430 v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/msp430-0.2.2/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(llvm_asm)]
[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 `msp430`
[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" "0f5d0cd0e1722b00e65e50c9cf0445bcee2e69b5f5ff6c7e511887e1841e4b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5d0cd0e1722b00e65e50c9cf0445bcee2e69b5f5ff6c7e511887e1841e4b29", kill_on_drop: false }`
[INFO] [stdout] 0f5d0cd0e1722b00e65e50c9cf0445bcee2e69b5f5ff6c7e511887e1841e4b29
