[INFO] cloning repository https://github.com/Navidem/rls-analysis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Navidem/rls-analysis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNavidem%2Frls-analysis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNavidem%2Frls-analysis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5a178098f159354096d97dd86941963facc7dce
[INFO] documenting Navidem/rls-analysis 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%2FNavidem%2Frls-analysis" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Navidem/rls-analysis 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/Navidem/rls-analysis
[INFO] finished tweaking git repo https://github.com/Navidem/rls-analysis
[INFO] tweaked toml for git repo https://github.com/Navidem/rls-analysis written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Navidem/rls-analysis 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 655034b0c843327e9f601c7bce539afd1b5d5b2ae3309665d7b0511e63cb82d0
[INFO] running `Command { std: "docker" "start" "-a" "655034b0c843327e9f601c7bce539afd1b5d5b2ae3309665d7b0511e63cb82d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "655034b0c843327e9f601c7bce539afd1b5d5b2ae3309665d7b0511e63cb82d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655034b0c843327e9f601c7bce539afd1b5d5b2ae3309665d7b0511e63cb82d0", kill_on_drop: false }`
[INFO] [stdout] 655034b0c843327e9f601c7bce539afd1b5d5b2ae3309665d7b0511e63cb82d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 94e73ae6cd28191067452c923d18e13e1ca530e1c42e6e7e3be20277aa365f58
[INFO] running `Command { std: "docker" "start" "-a" "94e73ae6cd28191067452c923d18e13e1ca530e1c42e6e7e3be20277aa365f58", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking radix_trie v0.1.3
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[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" "94e73ae6cd28191067452c923d18e13e1ca530e1c42e6e7e3be20277aa365f58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e73ae6cd28191067452c923d18e13e1ca530e1c42e6e7e3be20277aa365f58", kill_on_drop: false }`
[INFO] [stdout] 94e73ae6cd28191067452c923d18e13e1ca530e1c42e6e7e3be20277aa365f58
