[INFO] cloning repository https://github.com/MashiroNeko/nekoos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MashiroNeko/nekoos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMashiroNeko%2Fnekoos"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMashiroNeko%2Fnekoos'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92e3f65ecf8f0d9c8adf4e2695fa5874af757100
[INFO] testing MashiroNeko/nekoos against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMashiroNeko%2Fnekoos" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MashiroNeko/nekoos on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MashiroNeko/nekoos
[INFO] removed path dependency buddy-allocator from git repo https://github.com/MashiroNeko/nekoos
[INFO] removed path dependency buddy_system_allocator from git repo https://github.com/MashiroNeko/nekoos
[INFO] removed path dependency riscv from git repo https://github.com/MashiroNeko/nekoos
[INFO] finished tweaking git repo https://github.com/MashiroNeko/nekoos
[INFO] tweaked toml for git repo https://github.com/MashiroNeko/nekoos written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/MashiroNeko/nekoos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (buddy-allocator) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (buddy_system_allocator) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (riscv) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (buddy-allocator) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (buddy_system_allocator) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (riscv) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb8e5c5a723add1be0f28b01f1db8031dcd9839bc795ae1894b4aa5fbf40d05a
[INFO] running `"docker" "start" "-a" "fb8e5c5a723add1be0f28b01f1db8031dcd9839bc795ae1894b4aa5fbf40d05a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (buddy-allocator) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (buddy_system_allocator) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (riscv) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling riscv v0.5.6
[INFO] [stderr]    Compiling alloc-wg v0.9.0
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling spin v0.3.5
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.3.5/src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(const_fn, asm)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc-wg-0.9.0/src/lib.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / #![feature(
[INFO] [stderr] 17 | |     allocator_api,
[INFO] [stderr] 18 | |     alloc_layout_extra,
[INFO] [stderr] 19 | |     dropck_eyepatch,
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     raw_vec_internals
[INFO] [stderr] 47 | | )]
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `spin`.
[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[E0599]: no function or associated item named `dangling` found for struct `std::ptr::Unique<_>` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc-wg-0.9.0/src/raw_vec.rs:132:26
[INFO] [stderr]     |
[INFO] [stderr] 132 |             ptr: Unique::dangling(),
[INFO] [stderr]     |                          ^^^^^^^^ function or associated item not found in `std::ptr::Unique<_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `alloc-wg`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fb8e5c5a723add1be0f28b01f1db8031dcd9839bc795ae1894b4aa5fbf40d05a"`
[INFO] running `"docker" "rm" "-f" "fb8e5c5a723add1be0f28b01f1db8031dcd9839bc795ae1894b4aa5fbf40d05a"`
[INFO] [stdout] fb8e5c5a723add1be0f28b01f1db8031dcd9839bc795ae1894b4aa5fbf40d05a