[INFO] cloning repository https://github.com/nvonbulow/rustos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nvonbulow/rustos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnvonbulow%2Frustos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnvonbulow%2Frustos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb08078dcff84c140d6e738a8de49cec781d7b0a
[INFO] testing nvonbulow/rustos against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnvonbulow%2Frustos" "/workspace/builds/worker-43/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-43/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nvonbulow/rustos 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/nvonbulow/rustos
[INFO] finished tweaking git repo https://github.com/nvonbulow/rustos
[INFO] tweaked toml for git repo https://github.com/nvonbulow/rustos written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] crate git repo https://github.com/nvonbulow/rustos 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.3
[INFO] [stderr]   Downloaded x86_64 v0.1.2
[INFO] [stderr]   Downloaded multiboot2 v0.3.2
[INFO] [stderr]   Downloaded once v0.3.3
[INFO] [stderr]   Downloaded spin v0.4.6
[INFO] [stderr]   Downloaded bitfield v0.12.1
[INFO] [stderr]   Downloaded raw-cpuid v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf25847553b633fff5b8c66f7021c3990b33bcf3f227d9f367115a5dacaac167
[INFO] running `Command { std: "docker" "start" "-a" "cf25847553b633fff5b8c66f7021c3990b33bcf3f227d9f367115a5dacaac167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf25847553b633fff5b8c66f7021c3990b33bcf3f227d9f367115a5dacaac167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf25847553b633fff5b8c66f7021c3990b33bcf3f227d9f367115a5dacaac167", kill_on_drop: false }`
[INFO] [stdout] cf25847553b633fff5b8c66f7021c3990b33bcf3f227d9f367115a5dacaac167
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e94d17c075e02fd53cdd56a097260b3af9a01896cf8c70e80767a4ed392fa2c3
[INFO] running `Command { std: "docker" "start" "-a" "e94d17c075e02fd53cdd56a097260b3af9a01896cf8c70e80767a4ed392fa2c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling spin v0.4.6
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling bit_field v0.7.0
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling bitfield v0.12.1
[INFO] [stderr]    Compiling volatile v0.2.3
[INFO] [stderr]    Compiling once v0.3.3
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/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-0.4.6/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] [stderr] error: could not compile `spin` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e94d17c075e02fd53cdd56a097260b3af9a01896cf8c70e80767a4ed392fa2c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94d17c075e02fd53cdd56a097260b3af9a01896cf8c70e80767a4ed392fa2c3", kill_on_drop: false }`
[INFO] [stdout] e94d17c075e02fd53cdd56a097260b3af9a01896cf8c70e80767a4ed392fa2c3