[INFO] fetching crate matrix-ui-serializable 0.1.0...
[INFO] checking matrix-ui-serializable-0.1.0 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate matrix-ui-serializable 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate matrix-ui-serializable 0.1.0
[INFO] finished tweaking crates.io crate matrix-ui-serializable 0.1.0
[INFO] tweaked toml for crates.io crate matrix-ui-serializable 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate matrix-ui-serializable 0.1.0 on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate matrix-ui-serializable 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdd76fea4e7e7d4cb2b2feb60cfbad218b3cdc347e26e7530c5f75f287b5084b
[INFO] running `Command { std: "docker" "start" "-a" "fdd76fea4e7e7d4cb2b2feb60cfbad218b3cdc347e26e7530c5f75f287b5084b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdd76fea4e7e7d4cb2b2feb60cfbad218b3cdc347e26e7530c5f75f287b5084b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd76fea4e7e7d4cb2b2feb60cfbad218b3cdc347e26e7530c5f75f287b5084b", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03b184d3421f9e99b7ad90ceb6596990a872ee79934c3d52810f184ec0f8e858
[INFO] running `Command { std: "docker" "start" "-a" "03b184d3421f9e99b7ad90ceb6596990a872ee79934c3d52810f184ec0f8e858", kill_on_drop: false }`
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[INFO] [stdout] warning: static `EMPTY_TAGS` is never used
[INFO] [stdout]   --> src/room/room_filter.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | static EMPTY_TAGS: Tags = BTreeMap::new();
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `SortFn` is never used
[INFO] [stdout]   --> src/room/room_filter.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub type SortFn = dyn Fn(&(dyn FilterableRoom + Send + Sync), &(dyn FilterableRoom + Send + Sync)) -> Ordering
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RoomDisplayFilterBuilder` is never constructed
[INFO] [stdout]    --> src/room/room_filter.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub struct RoomDisplayFilterBuilder {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/room/room_filter.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | impl RoomDisplayFilterBuilder {
[INFO] [stdout]     | ----------------------------- associated function in this implementation
[INFO] [stdout] 179 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]  --> src/room/tags.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl FrontendRoomTags {
[INFO] [stdout]   | --------------------- method in this implementation
[INFO] [stdout] 9 |     pub fn inner(&self) -> &Tags {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `EMPTY_TAGS` is never used
[INFO] [stdout]   --> src/room/room_filter.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | static EMPTY_TAGS: Tags = BTreeMap::new();
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `SortFn` is never used
[INFO] [stdout]   --> src/room/room_filter.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub type SortFn = dyn Fn(&(dyn FilterableRoom + Send + Sync), &(dyn FilterableRoom + Send + Sync)) -> Ordering
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RoomDisplayFilterBuilder` is never constructed
[INFO] [stdout]    --> src/room/room_filter.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub struct RoomDisplayFilterBuilder {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/room/room_filter.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | impl RoomDisplayFilterBuilder {
[INFO] [stdout]     | ----------------------------- associated function in this implementation
[INFO] [stdout] 179 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]  --> src/room/tags.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl FrontendRoomTags {
[INFO] [stdout]   | --------------------- method in this implementation
[INFO] [stdout] 9 |     pub fn inner(&self) -> &Tags {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 29s
[INFO] running `Command { std: "docker" "inspect" "03b184d3421f9e99b7ad90ceb6596990a872ee79934c3d52810f184ec0f8e858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03b184d3421f9e99b7ad90ceb6596990a872ee79934c3d52810f184ec0f8e858", kill_on_drop: false }`
[INFO] [stdout] 03b184d3421f9e99b7ad90ceb6596990a872ee79934c3d52810f184ec0f8e858
