[INFO] cloning repository https://github.com/schnommus/composite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/schnommus/composite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschnommus%2Fcomposite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschnommus%2Fcomposite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e3488aa80fdd6201f75c54677e9d9296d381be9
[INFO] documenting schnommus/composite 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%2Fschnommus%2Fcomposite" "/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/schnommus/composite 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/schnommus/composite
[INFO] finished tweaking git repo https://github.com/schnommus/composite
[INFO] tweaked toml for git repo https://github.com/schnommus/composite written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/schnommus/composite 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] 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" "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] 7354e4739de3556faa428781a77fe5706e8ed1f851454ebfee3e675fe5a05b88
[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" "7354e4739de3556faa428781a77fe5706e8ed1f851454ebfee3e675fe5a05b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7354e4739de3556faa428781a77fe5706e8ed1f851454ebfee3e675fe5a05b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7354e4739de3556faa428781a77fe5706e8ed1f851454ebfee3e675fe5a05b88", kill_on_drop: false }`
[INFO] [stdout] 7354e4739de3556faa428781a77fe5706e8ed1f851454ebfee3e675fe5a05b88
[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" "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] 3c8da36eca20318cd8cfad3b170aa03b1fa5a6c377346a7d476d62ad7a7d2ec1
[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" "3c8da36eca20318cd8cfad3b170aa03b1fa5a6c377346a7d476d62ad7a7d2ec1", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking serde_json v1.0.22
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking flame v0.2.2
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]    Compiling flamer v0.2.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flamer-0.2.3/src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin_registrar, quote, rustc_private, custom_attribute)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flamer-0.2.3/src/lib.rs:1:52
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin_registrar, quote, rustc_private, custom_attribute)]
[INFO] [stdout]   |                                                    ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flamer-0.2.3/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate rustc_plugin;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flamer`.
[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" "3c8da36eca20318cd8cfad3b170aa03b1fa5a6c377346a7d476d62ad7a7d2ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8da36eca20318cd8cfad3b170aa03b1fa5a6c377346a7d476d62ad7a7d2ec1", kill_on_drop: false }`
[INFO] [stdout] 3c8da36eca20318cd8cfad3b170aa03b1fa5a6c377346a7d476d62ad7a7d2ec1