[INFO] cloning repository https://github.com/jakobbeckmann/rls_analysis_tester
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakobbeckmann/rls_analysis_tester" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakobbeckmann%2Frls_analysis_tester", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakobbeckmann%2Frls_analysis_tester'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21c82875c15d792e3f4fb926d38454d90739c988
[INFO] documenting jakobbeckmann/rls_analysis_tester against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakobbeckmann%2Frls_analysis_tester" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakobbeckmann/rls_analysis_tester on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakobbeckmann/rls_analysis_tester
[INFO] finished tweaking git repo https://github.com/jakobbeckmann/rls_analysis_tester
[INFO] tweaked toml for git repo https://github.com/jakobbeckmann/rls_analysis_tester written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jakobbeckmann/rls_analysis_tester already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nibble_vec v0.0.4
[INFO] [stderr]   Downloaded rls-span v0.4.0
[INFO] [stderr]   Downloaded rls-data v0.15.0
[INFO] [stderr]   Downloaded radix_trie v0.1.3
[INFO] [stderr]   Downloaded rls-analysis v0.11.2
[INFO] [stderr]   Downloaded derive-new v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 8818df688dc0273a48532caa846c827e7ad17063763d49412cb091e8827148e3
[INFO] running `Command { std: "docker" "start" "-a" "8818df688dc0273a48532caa846c827e7ad17063763d49412cb091e8827148e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8818df688dc0273a48532caa846c827e7ad17063763d49412cb091e8827148e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8818df688dc0273a48532caa846c827e7ad17063763d49412cb091e8827148e3", kill_on_drop: false }`
[INFO] [stdout] 8818df688dc0273a48532caa846c827e7ad17063763d49412cb091e8827148e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 774b97bebee0c99275027665d5e985a49321b93bb2604f1c83e21e83fe46de1b
[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" "774b97bebee0c99275027665d5e985a49321b93bb2604f1c83e21e83fe46de1b", 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]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking json v0.11.13
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rls-span v0.4.0
[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/rls-span-0.4.0/src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[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 `rls-span` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "774b97bebee0c99275027665d5e985a49321b93bb2604f1c83e21e83fe46de1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "774b97bebee0c99275027665d5e985a49321b93bb2604f1c83e21e83fe46de1b", kill_on_drop: false }`
[INFO] [stdout] 774b97bebee0c99275027665d5e985a49321b93bb2604f1c83e21e83fe46de1b
