[INFO] cloning repository https://github.com/steveklabnik/doxidize
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steveklabnik/doxidize" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Fdoxidize", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Fdoxidize'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0cd9fce983a16187cdf54b6489cf86bfe8b21c9
[INFO] checking steveklabnik/doxidize against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Fdoxidize" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/steveklabnik/doxidize on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/steveklabnik/doxidize
[INFO] finished tweaking git repo https://github.com/steveklabnik/doxidize
[INFO] tweaked toml for git repo https://github.com/steveklabnik/doxidize written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/steveklabnik/doxidize already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15150a381bfa928ee32326ad794546d707c527823165e6d38ca84058c615edea
[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" "15150a381bfa928ee32326ad794546d707c527823165e6d38ca84058c615edea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15150a381bfa928ee32326ad794546d707c527823165e6d38ca84058c615edea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15150a381bfa928ee32326ad794546d707c527823165e6d38ca84058c615edea", kill_on_drop: false }`
[INFO] [stdout] 15150a381bfa928ee32326ad794546d707c527823165e6d38ca84058c615edea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46fc220b9986d22d59a71a821c42c26e32fe12bdfea664ad081e82823d92f42c
[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" "46fc220b9986d22d59a71a821c42c26e32fe12bdfea664ad081e82823d92f42c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling pest v1.0.3
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking slog v2.2.3
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking nibble_vec v0.0.3
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking typed-arena v1.3.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.8
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking remove_dir_all v0.5.0
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking take_mut v0.2.0
[INFO] [stderr]     Checking entities v1.0.0
[INFO] [stderr]     Checking unidecode v0.3.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking rls-span v0.4.0
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]     Checking radix_trie v0.1.2
[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]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking heck v0.3.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking net2 v0.2.31
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "46fc220b9986d22d59a71a821c42c26e32fe12bdfea664ad081e82823d92f42c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46fc220b9986d22d59a71a821c42c26e32fe12bdfea664ad081e82823d92f42c", kill_on_drop: false }`
[INFO] [stdout] 46fc220b9986d22d59a71a821c42c26e32fe12bdfea664ad081e82823d92f42c