[INFO] cloning repository https://github.com/dureuill/delegate_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dureuill/delegate_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdureuill%2Fdelegate_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdureuill%2Fdelegate_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dac329fb50ad0bb151ce8b8f43b826aa602d74a5
[INFO] documenting dureuill/delegate_test 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%2Fdureuill%2Fdelegate_test" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dureuill/delegate_test 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] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/dureuill/delegate_test
[INFO] finished tweaking git repo https://github.com/dureuill/delegate_test
[INFO] tweaked toml for git repo https://github.com/dureuill/delegate_test written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dureuill/delegate_test 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]     Updating git repository `https://github.com/dureuill/delegable-derive`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6b71b036c2823255d9eaad76bc502bb5cfbcadb29efb95a4950f7fe40078cb22
[INFO] running `Command { std: "docker" "start" "-a" "6b71b036c2823255d9eaad76bc502bb5cfbcadb29efb95a4950f7fe40078cb22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b71b036c2823255d9eaad76bc502bb5cfbcadb29efb95a4950f7fe40078cb22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b71b036c2823255d9eaad76bc502bb5cfbcadb29efb95a4950f7fe40078cb22", kill_on_drop: false }`
[INFO] [stdout] 6b71b036c2823255d9eaad76bc502bb5cfbcadb29efb95a4950f7fe40078cb22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a5ba3810102d774f2b64e510d373d1efe91a06e3378a97fe11a1c61be3e5be34
[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" "a5ba3810102d774f2b64e510d373d1efe91a06e3378a97fe11a1c61be3e5be34", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling delegable-derive v0.3.0 (https://github.com/dureuill/delegable-derive#64822604)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/delegable-derive-63317a59e965fd40/6482260/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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 `delegable-derive` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a5ba3810102d774f2b64e510d373d1efe91a06e3378a97fe11a1c61be3e5be34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ba3810102d774f2b64e510d373d1efe91a06e3378a97fe11a1c61be3e5be34", kill_on_drop: false }`
[INFO] [stdout] a5ba3810102d774f2b64e510d373d1efe91a06e3378a97fe11a1c61be3e5be34
