[INFO] cloning repository https://github.com/luc-tielen/fire-emblem-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luc-tielen/fire-emblem-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluc-tielen%2Ffire-emblem-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluc-tielen%2Ffire-emblem-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25b63a5bb4ac4c439da2c4a07a8992fb4398e36a
[INFO] documenting luc-tielen/fire-emblem-rs against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluc-tielen%2Ffire-emblem-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luc-tielen/fire-emblem-rs on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luc-tielen/fire-emblem-rs
[INFO] finished tweaking git repo https://github.com/luc-tielen/fire-emblem-rs
[INFO] tweaked toml for git repo https://github.com/luc-tielen/fire-emblem-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/luc-tielen/fire-emblem-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded relm-derive-common v0.10.0
[INFO] [stderr]   Downloaded relm-derive v0.10.0
[INFO] [stderr]   Downloaded glib-sys v0.4.0
[INFO] [stderr]   Downloaded pango-sys v0.4.0
[INFO] [stderr]   Downloaded relm-attributes v0.10.0
[INFO] [stderr]   Downloaded gio-sys v0.4.0
[INFO] [stderr]   Downloaded atk-sys v0.4.0
[INFO] [stderr]   Downloaded gdk-pixbuf-sys v0.4.0
[INFO] [stderr]   Downloaded relm-core v0.10.1
[INFO] [stderr]   Downloaded relm-state v0.10.1
[INFO] [stderr]   Downloaded relm-gen-widget v0.10.0
[INFO] [stderr]   Downloaded gobject-sys v0.4.0
[INFO] [stderr]   Downloaded futures-glib v0.2.1
[INFO] [stderr]   Downloaded pango v0.2.0
[INFO] [stderr]   Downloaded gdk-sys v0.4.0
[INFO] [stderr]   Downloaded cairo-rs v0.2.0
[INFO] [stderr]   Downloaded gio v0.2.0
[INFO] [stderr]   Downloaded cairo-sys-rs v0.4.0
[INFO] [stderr]   Downloaded gdk-pixbuf v0.2.0
[INFO] [stderr]   Downloaded gtk v0.2.0
[INFO] [stderr]   Downloaded relm v0.10.1
[INFO] [stderr]   Downloaded gdk v0.6.0
[INFO] [stderr]   Downloaded glib v0.3.1
[INFO] [stderr]   Downloaded gtk-sys v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 0703792a505acb8039a4ee391dddc3e244cbb085364785b151efc9dc28767742
[INFO] running `Command { std: "docker" "start" "-a" "0703792a505acb8039a4ee391dddc3e244cbb085364785b151efc9dc28767742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0703792a505acb8039a4ee391dddc3e244cbb085364785b151efc9dc28767742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0703792a505acb8039a4ee391dddc3e244cbb085364785b151efc9dc28767742", kill_on_drop: false }`
[INFO] [stdout] 0703792a505acb8039a4ee391dddc3e244cbb085364785b151efc9dc28767742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a134984fdf1f93460026cfe204cf219aa1f5463688e7498acf7a228044fdd672
[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" "a134984fdf1f93460026cfe204cf219aa1f5463688e7498acf7a228044fdd672", 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 libc v0.2.32
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking futures v0.1.16
[INFO] [stderr]    Compiling cairo-rs v0.2.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.2.0
[INFO] [stderr]    Compiling gio v0.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]     Checking c_vec v1.2.1
[INFO] [stderr]    Compiling gdk v0.6.0
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling gtk v0.2.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling glib-sys v0.4.0
[INFO] [stderr]    Compiling gobject-sys v0.4.0
[INFO] [stderr]    Compiling gio-sys v0.4.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.4.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.4.0
[INFO] [stderr]    Compiling pango-sys v0.4.0
[INFO] [stderr]    Compiling gdk-sys v0.4.0
[INFO] [stderr]    Compiling atk-sys v0.4.0
[INFO] [stderr]    Compiling gtk-sys v0.4.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]     Checking tokio-io v0.1.3
[INFO] [stderr]     Checking futures-glib v0.2.1
[INFO] [stderr]     Checking relm-core v0.10.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]     Checking relm-state v0.10.1
[INFO] [stderr]     Checking glib v0.3.1
[INFO] [stderr]    Compiling relm-gen-widget v0.10.0
[INFO] [stderr]     Checking pango v0.2.0
[INFO] [stderr]    Compiling relm-derive-common v0.10.0
[INFO] [stderr]    Compiling relm-derive v0.10.0
[INFO] [stderr]    Compiling relm-attributes v0.10.0
[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/relm-attributes-0.10.0/src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[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 `relm-attributes`.
[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" "a134984fdf1f93460026cfe204cf219aa1f5463688e7498acf7a228044fdd672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a134984fdf1f93460026cfe204cf219aa1f5463688e7498acf7a228044fdd672", kill_on_drop: false }`
[INFO] [stdout] a134984fdf1f93460026cfe204cf219aa1f5463688e7498acf7a228044fdd672