[INFO] cloning repository https://github.com/bugabinga/buga_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bugabinga/buga_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbugabinga%2Fbuga_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbugabinga%2Fbuga_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d9e8077a9e8b10b0990482d6ac8174a609d4234
[INFO] testing bugabinga/buga_os against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbugabinga%2Fbuga_os" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bugabinga/buga_os on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bugabinga/buga_os
[INFO] finished tweaking git repo https://github.com/bugabinga/buga_os
[INFO] tweaked toml for git repo https://github.com/bugabinga/buga_os written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/bugabinga/buga_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.5.4
[INFO] [stderr]   Downloaded if_chain v0.1.2
[INFO] [stderr]   Downloaded getopts v0.2.17
[INFO] [stderr]   Downloaded backtrace v0.3.7
[INFO] [stderr]   Downloaded syn v0.13.7
[INFO] [stderr]   Downloaded serde_json v1.0.17
[INFO] [stderr]   Downloaded cc v1.0.15
[INFO] [stderr]   Downloaded serde_derive v1.0.52
[INFO] [stderr]   Downloaded serde v1.0.52
[INFO] [stderr]   Downloaded spin v0.4.8
[INFO] [stderr]   Downloaded volatile v0.2.4
[INFO] [stderr]   Downloaded clippy_lints v0.0.197
[INFO] [stderr]   Downloaded clippy v0.0.197
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] e3240bc0518264fa4d2c3ce909fac139b3eafd4c47fde0978652c90083b142e9
[INFO] running `Command { std: "docker" "start" "-a" "e3240bc0518264fa4d2c3ce909fac139b3eafd4c47fde0978652c90083b142e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3240bc0518264fa4d2c3ce909fac139b3eafd4c47fde0978652c90083b142e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3240bc0518264fa4d2c3ce909fac139b3eafd4c47fde0978652c90083b142e9", kill_on_drop: false }`
[INFO] [stdout] e3240bc0518264fa4d2c3ce909fac139b3eafd4c47fde0978652c90083b142e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] a3f925fc77d71ba666402dc0c305b2bdad0ae93e1c5f542bc47574ecaa4ec96e
[INFO] running `Command { std: "docker" "start" "-a" "a3f925fc77d71ba666402dc0c305b2bdad0ae93e1c5f542bc47574ecaa4ec96e", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.4.8
[INFO] [stderr]    Compiling volatile v0.2.4
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:43
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/util.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     unsafe { asm!("pause" :::: "volatile"); }
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider importing this macro:
[INFO] [stdout]           core::arch::asm
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spin` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a3f925fc77d71ba666402dc0c305b2bdad0ae93e1c5f542bc47574ecaa4ec96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3f925fc77d71ba666402dc0c305b2bdad0ae93e1c5f542bc47574ecaa4ec96e", kill_on_drop: false }`
[INFO] [stdout] a3f925fc77d71ba666402dc0c305b2bdad0ae93e1c5f542bc47574ecaa4ec96e