[INFO] cloning repository https://github.com/SlagHoedje/os
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SlagHoedje/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSlagHoedje%2Fos"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSlagHoedje%2Fos'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c9a4b7cf0bf7e2303344f44a9e67e46108583744
[INFO] testing SlagHoedje/os against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSlagHoedje%2Fos" "/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/SlagHoedje/os on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SlagHoedje/os
[INFO] finished tweaking git repo https://github.com/SlagHoedje/os
[INFO] tweaked toml for git repo https://github.com/SlagHoedje/os written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/SlagHoedje/os already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded multiboot2 v0.8.1
[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" "+beta-2020-06-03" "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] 7a82ca2c7b5c49df5e09a226cef68c699a9385bb6385dbd91fc491057e1e7c29
[INFO] running `"docker" "start" "-a" "7a82ca2c7b5c49df5e09a226cef68c699a9385bb6385dbd91fc491057e1e7c29"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.2.6
[INFO] [stderr]    Compiling bit_field v0.10.0
[INFO] [stderr]    Compiling flagset v0.3.0
[INFO] [stderr]    Compiling multiboot2 v0.8.1
[INFO] [stderr]    Compiling linked_list_allocator v0.6.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr] error[E0432]: unresolved import `alloc::alloc::Alloc`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.4/src/lib.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 | use alloc::alloc::{Alloc, AllocErr, Layout};
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    no `Alloc` in `alloc`
[INFO] [stderr]    |                    help: a similar name exists in the module: `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.4/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.4/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(alloc, allocator_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `linked_list_allocator`.
[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 `"docker" "inspect" "7a82ca2c7b5c49df5e09a226cef68c699a9385bb6385dbd91fc491057e1e7c29"`
[INFO] running `"docker" "rm" "-f" "7a82ca2c7b5c49df5e09a226cef68c699a9385bb6385dbd91fc491057e1e7c29"`
[INFO] [stdout] 7a82ca2c7b5c49df5e09a226cef68c699a9385bb6385dbd91fc491057e1e7c29