[INFO] cloning repository https://github.com/vlopes11/unprolix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vlopes11/unprolix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlopes11%2Funprolix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlopes11%2Funprolix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d75f861d002978cd1e573d1e4d13da0cce8d610
[INFO] testing vlopes11/unprolix against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlopes11%2Funprolix" "/workspace/builds/worker-105/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vlopes11/unprolix on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vlopes11/unprolix
[INFO] finished tweaking git repo https://github.com/vlopes11/unprolix
[INFO] tweaked toml for git repo https://github.com/vlopes11/unprolix written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate git repo https://github.com/vlopes11/unprolix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d601323aaf1336378e283c7cbdb95d4f4490a793ea7d199c6c7e0f207bcd6839
[INFO] running `Command { std: "docker" "start" "-a" "d601323aaf1336378e283c7cbdb95d4f4490a793ea7d199c6c7e0f207bcd6839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d601323aaf1336378e283c7cbdb95d4f4490a793ea7d199c6c7e0f207bcd6839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d601323aaf1336378e283c7cbdb95d4f4490a793ea7d199c6c7e0f207bcd6839", kill_on_drop: false }`
[INFO] [stdout] d601323aaf1336378e283c7cbdb95d4f4490a793ea7d199c6c7e0f207bcd6839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "RUSTFLAGS=--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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73c54d31916d9fd5fd98cf9ec9bc941a175430f03aa7de5644c48381a42de9d3
[INFO] running `Command { std: "docker" "start" "-a" "73c54d31916d9fd5fd98cf9ec9bc941a175430f03aa7de5644c48381a42de9d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling unprolix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(external_doc)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]  --> src/lib.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![doc(include = "../README.md")]
[INFO] [stdout]   | -------^^^^^^^^^^^^^^^^^^^^^^^^-- help: use `doc = include_str!` instead: `#![doc = include_str!("../README.md")]`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unprolix` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "73c54d31916d9fd5fd98cf9ec9bc941a175430f03aa7de5644c48381a42de9d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c54d31916d9fd5fd98cf9ec9bc941a175430f03aa7de5644c48381a42de9d3", kill_on_drop: false }`
[INFO] [stdout] 73c54d31916d9fd5fd98cf9ec9bc941a175430f03aa7de5644c48381a42de9d3