[INFO] fetching crate x86test 0.0.5...
[INFO] documenting x86test-0.0.5 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate x86test 0.0.5 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate x86test 0.0.5 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate x86test 0.0.5
[INFO] finished tweaking crates.io crate x86test 0.0.5
[INFO] tweaked toml for crates.io crate x86test 0.0.5 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] ff5e2a0c8d32535b9f85616b0c8abeddc42097c1ce33e3c4dcc6326413a86b19
[INFO] running `Command { std: "docker" "start" "-a" "ff5e2a0c8d32535b9f85616b0c8abeddc42097c1ce33e3c4dcc6326413a86b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff5e2a0c8d32535b9f85616b0c8abeddc42097c1ce33e3c4dcc6326413a86b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff5e2a0c8d32535b9f85616b0c8abeddc42097c1ce33e3c4dcc6326413a86b19", kill_on_drop: false }`
[INFO] [stdout] ff5e2a0c8d32535b9f85616b0c8abeddc42097c1ce33e3c4dcc6326413a86b19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 106518c8b5880ddb19c936f605cbca0380346e61bda5dcfaecfdb02d979dfd58
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "106518c8b5880ddb19c936f605cbca0380346e61bda5dcfaecfdb02d979dfd58", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling x86 v0.47.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking termcodes v0.0.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking raw-cpuid v10.3.0
[INFO] [stderr]    Compiling kvm-sys v0.3.0
[INFO] [stderr]     Checking log v0.4.17
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking memmap v0.2.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking mmap v0.1.1
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking x86test-types v0.0.5
[INFO] [stderr]     Checking klogger v0.0.10
[INFO] [stderr]    Compiling x86test-macro v0.0.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/x86test-macro-0.0.5/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86test-macro` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "106518c8b5880ddb19c936f605cbca0380346e61bda5dcfaecfdb02d979dfd58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106518c8b5880ddb19c936f605cbca0380346e61bda5dcfaecfdb02d979dfd58", kill_on_drop: false }`
[INFO] [stdout] 106518c8b5880ddb19c936f605cbca0380346e61bda5dcfaecfdb02d979dfd58