[INFO] cloning repository https://github.com/Osspial/emcee-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Osspial/emcee-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsspial%2Femcee-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsspial%2Femcee-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f43f2247355d76c400c9f3f29c846771f386bbc
[INFO] documenting Osspial/emcee-editor against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsspial%2Femcee-editor" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Osspial/emcee-editor on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Osspial/emcee-editor
[INFO] finished tweaking git repo https://github.com/Osspial/emcee-editor
[INFO] tweaked toml for git repo https://github.com/Osspial/emcee-editor written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Osspial/emcee-editor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b61cdb41a29f614dedc5dc1525160d390d88d85909e586b1629d1520fdd873d
[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" "0b61cdb41a29f614dedc5dc1525160d390d88d85909e586b1629d1520fdd873d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b61cdb41a29f614dedc5dc1525160d390d88d85909e586b1629d1520fdd873d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b61cdb41a29f614dedc5dc1525160d390d88d85909e586b1629d1520fdd873d", kill_on_drop: false }`
[INFO] [stdout] 0b61cdb41a29f614dedc5dc1525160d390d88d85909e586b1629d1520fdd873d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1812df56e2bcf7d6607ac7459624dbf6e56a020c0dede2848e6382b97c1bd4c0
[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" "1812df56e2bcf7d6607ac7459624dbf6e56a020c0dede2848e6382b97c1bd4c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking typed-arena v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]    Compiling x11-dl v2.17.5
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking parking_lot_core v0.2.13
[INFO] [stderr]     Checking tempfile v3.0.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling derive_more v0.6.2
[INFO] [stderr]    Compiling gullery_macros v0.1.0 (https://github.com/Osspial/gullery#6a54c84c)
[INFO] [stderr]    Compiling derin_macros v0.1.0 (https://github.com/Osspial/derin#1bcc5338)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/derin-724a69ce65812efb/1bcc533/derin_macros/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(nll)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking parking_lot v0.5.4
[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 `derin_macros`.
[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" "1812df56e2bcf7d6607ac7459624dbf6e56a020c0dede2848e6382b97c1bd4c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1812df56e2bcf7d6607ac7459624dbf6e56a020c0dede2848e6382b97c1bd4c0", kill_on_drop: false }`
[INFO] [stdout] 1812df56e2bcf7d6607ac7459624dbf6e56a020c0dede2848e6382b97c1bd4c0