[INFO] cloning repository https://github.com/daydream-mx/daydream-druid
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daydream-mx/daydream-druid" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaydream-mx%2Fdaydream-druid", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaydream-mx%2Fdaydream-druid'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 168c9c17fb94aa46e9866cf3ff34691fdcb7004c
[INFO] documenting daydream-mx/daydream-druid 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%2Fdaydream-mx%2Fdaydream-druid" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daydream-mx/daydream-druid 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/daydream-mx/daydream-druid
[INFO] finished tweaking git repo https://github.com/daydream-mx/daydream-druid
[INFO] tweaked toml for git repo https://github.com/daydream-mx/daydream-druid written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/daydream-mx/daydream-druid 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 2b00ecfd06f6194a8f09f75f9ac60875db9d30b6871872056261e4de60f9e5d0
[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" "2b00ecfd06f6194a8f09f75f9ac60875db9d30b6871872056261e4de60f9e5d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b00ecfd06f6194a8f09f75f9ac60875db9d30b6871872056261e4de60f9e5d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b00ecfd06f6194a8f09f75f9ac60875db9d30b6871872056261e4de60f9e5d0", kill_on_drop: false }`
[INFO] [stdout] 2b00ecfd06f6194a8f09f75f9ac60875db9d30b6871872056261e4de60f9e5d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 167e4ba1c3971ca8182539caead0d9861b5b20f18e2db6a7764eeec01548cd05
[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" "167e4ba1c3971ca8182539caead0d9861b5b20f18e2db6a7764eeec01548cd05", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking tinystr v0.3.4
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]     Checking assign v1.1.0
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling daydream-druid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking kurbo v0.6.2
[INFO] [stderr]    Compiling olm-sys v0.2.0 (https://gitlab.gnome.org/MTRNord/olm-sys.git?branch=cmake#0760d6e1)
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking simple_logger v1.7.0
[INFO] [stderr]     Checking unic-langid-impl v0.9.0
[INFO] [stderr]     Checking keyboard-types v0.5.0
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]    Compiling strum_macros v0.19.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling matrix-sdk-common-macros v0.1.0 (https://github.com/matrix-org/matrix-rust-sdk#6872cc71)
[INFO] [stderr]    Compiling druid-derive v0.3.1 (https://github.com/linebender/druid.git#b813a504)
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking js_int v0.1.9
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking unic-langid v0.9.0
[INFO] [stderr]     Checking piet v0.2.0-pre2
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking intl-memoizer v0.5.0
[INFO] [stderr]     Checking fluent-langneg v0.13.0
[INFO] [stderr]     Checking intl_pluralrules v7.0.0
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]     Checking time v0.2.16
[INFO] [stderr]     Checking fluent-bundle v0.12.0
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]     Checking ruma-serde v0.2.3 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking cjson v0.1.1
[INFO] [stderr]    Compiling strum v0.19.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking ruma-identifiers-validation v0.1.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.0
[INFO] [stderr]     Checking wasm-bindgen v0.2.67
[INFO] [stderr]     Checking olm-rs v0.6.0 (https://gitlab.gnome.org/jhaye/olm-rs/#af483ef1)
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]     Checking futures-locks v0.5.1-pre (https://github.com/asomers/futures-locks#c380ff6e)
[INFO] [stderr]    Compiling ruma-identifiers-macros v0.17.4 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking ruma-identifiers v0.17.4 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling ruma-api-macros v0.17.0-alpha.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]    Compiling ruma-events-macros v0.22.0-alpha.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]    Compiling glib-sys v0.10.0
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking web-sys v0.3.44
[INFO] [stderr]     Checking ruma-api v0.17.0-alpha.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking glib v0.10.1
[INFO] [stderr]     Checking ruma-common v0.2.0 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking ruma-events v0.22.0-alpha.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking piet-cairo v0.2.0-pre2
[INFO] [stderr]     Checking piet-common v0.2.0-pre2
[INFO] [stderr]     Checking ruma-client-api v0.10.0-alpha.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking ruma v0.0.1 (https://github.com/ruma/ruma?rev=409fbcc9d745fb7290327cb7f5defc714229ab30#409fbcc9)
[INFO] [stderr]     Checking matrix-sdk-common v0.1.0 (https://github.com/matrix-org/matrix-rust-sdk#6872cc71)
[INFO] [stderr]     Checking matrix-sdk-crypto v0.1.0 (https://github.com/matrix-org/matrix-rust-sdk#6872cc71)
[INFO] [stderr]     Checking matrix-sdk-base v0.1.0 (https://github.com/matrix-org/matrix-rust-sdk#6872cc71)
[INFO] [stderr]     Checking matrix-sdk v0.1.0 (https://github.com/matrix-org/matrix-rust-sdk#6872cc71)
[INFO] [stderr]     Checking druid-shell v0.6.0 (https://github.com/linebender/druid.git#b813a504)
[INFO] [stderr]     Checking druid v0.6.0 (https://github.com/linebender/druid.git#b813a504)
[INFO] [stderr]  Documenting daydream-druid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_order_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_order_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `daydream-druid`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-type rlib --crate-name daydream_druid src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-8f785d9ca8b7a976.so --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-54290d1d4e24abd9.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-bb635c4a3403bc1e.rmeta --extern druid=/opt/rustwide/target/debug/deps/libdruid-214c9329da0fd5f6.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-1a3a197c8032c0ad.rmeta --extern futures_locks=/opt/rustwide/target/debug/deps/libfutures_locks-1d49cedec4a598d5.rmeta --extern matrix_sdk=/opt/rustwide/target/debug/deps/libmatrix_sdk-75d2bf41415588e8.rmeta --extern matrix_sdk_common_macros=/opt/rustwide/target/debug/deps/libmatrix_sdk_common_macros-72367ba74f29481d.so --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-8810c110b9f3557a.rmeta --extern pulldown_cmark=/opt/rustwide/target/debug/deps/libpulldown_cmark-b4121e07078a8a57.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-59f71d34f976bd7e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-2338bd2d8d338bfc.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b4310e5bddc67081.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1ac1a51ffe953fba.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-762ba2e1e45d868f.rmeta --cap-lints=warn` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "167e4ba1c3971ca8182539caead0d9861b5b20f18e2db6a7764eeec01548cd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "167e4ba1c3971ca8182539caead0d9861b5b20f18e2db6a7764eeec01548cd05", kill_on_drop: false }`
[INFO] [stdout] 167e4ba1c3971ca8182539caead0d9861b5b20f18e2db6a7764eeec01548cd05