[INFO] updating cached repository https://github.com/samuela/rustybox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0d2201eece506e88f71d0e251346bb3e92bb7aef
[INFO] testing samuela/rustybox against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuela%2Frustybox" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samuela/rustybox 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/samuela/rustybox
[INFO] finished tweaking git repo https://github.com/samuela/rustybox
[INFO] tweaked toml for git repo https://github.com/samuela/rustybox written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/samuela/rustybox 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 0c5288e159e1ecdf2e799f9dbe8ab3c24821386d895b9d3d41b843e2a2b40e9f
[INFO] running `"docker" "start" "-a" "0c5288e159e1ecdf2e799f9dbe8ab3c24821386d895b9d3d41b843e2a2b40e9f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling rustybox v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling c2rust-asm-casts v0.1.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling c2rust-bitfields-derive v0.2.0
[INFO] [stderr]    Compiling c2rust-bitfields v0.3.0
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> rustybox.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(llvm_asm)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> rustybox.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(c_variadic)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> rustybox.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![feature(extern_types)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> rustybox.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(label_break_value)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> rustybox.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(ptr_wrapping_offset_from)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `rustybox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0c5288e159e1ecdf2e799f9dbe8ab3c24821386d895b9d3d41b843e2a2b40e9f"`
[INFO] running `"docker" "rm" "-f" "0c5288e159e1ecdf2e799f9dbe8ab3c24821386d895b9d3d41b843e2a2b40e9f"`
[INFO] [stdout] 0c5288e159e1ecdf2e799f9dbe8ab3c24821386d895b9d3d41b843e2a2b40e9f