[INFO] fetching crate golrs 0.2.0...
[INFO] checking golrs-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate golrs 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate golrs 0.2.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate golrs 0.2.0
[INFO] finished tweaking crates.io crate golrs 0.2.0
[INFO] tweaked toml for crates.io crate golrs 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate golrs 0.2.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2addf7e82edc71c3ba91973f433eea31e1f3d3f8b1753d9f9815cbd8c413a332
[INFO] running `Command { std: "docker" "start" "-a" "2addf7e82edc71c3ba91973f433eea31e1f3d3f8b1753d9f9815cbd8c413a332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2addf7e82edc71c3ba91973f433eea31e1f3d3f8b1753d9f9815cbd8c413a332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2addf7e82edc71c3ba91973f433eea31e1f3d3f8b1753d9f9815cbd8c413a332", kill_on_drop: false }`
[INFO] [stdout] 2addf7e82edc71c3ba91973f433eea31e1f3d3f8b1753d9f9815cbd8c413a332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74eee2d229c27df72b2babef2dce75dae0d2017ffda8330099569d282f83b98b
[INFO] running `Command { std: "docker" "start" "-a" "74eee2d229c27df72b2babef2dce75dae0d2017ffda8330099569d282f83b98b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking golrs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]    --> src/view.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn view_loop<W>(receiver: mpsc::Receiver<ViewCmd<W>>, handle: SimHandle<W>)
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sender` is never read
[INFO] [stdout]   --> src/view.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct View<W>
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     sender: mpsc::Sender<ViewCmd<W>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ViewRemote` is never constructed
[INFO] [stdout]   --> src/view.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct ViewRemote<W>
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Refresh` and `UpdateWorld` are never constructed
[INFO] [stdout]   --> src/view.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum ViewCmd<W>
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     Refresh,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 53 |     UpdateWorld(W),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `refresh`, and `set_world` are never used
[INFO] [stdout]   --> src/view.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | / impl<W> ViewRemote<W>
[INFO] [stdout] 57 | | where
[INFO] [stdout] 58 | |     W: World,
[INFO] [stdout]    | |_____________- associated items in this implementation
[INFO] [stdout] 59 |   {
[INFO] [stdout] 60 |       fn new(sender: mpsc::Sender<ViewCmd<W>>) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |       pub fn refresh(&self) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |       pub fn set_world(&self, world: W) {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]    --> src/view.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn view_loop<W>(receiver: mpsc::Receiver<ViewCmd<W>>, handle: SimHandle<W>)
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sender` is never read
[INFO] [stdout]   --> src/view.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct View<W>
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     sender: mpsc::Sender<ViewCmd<W>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ViewRemote` is never constructed
[INFO] [stdout]   --> src/view.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct ViewRemote<W>
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Refresh` and `UpdateWorld` are never constructed
[INFO] [stdout]   --> src/view.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum ViewCmd<W>
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     Refresh,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 53 |     UpdateWorld(W),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `refresh`, and `set_world` are never used
[INFO] [stdout]   --> src/view.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | / impl<W> ViewRemote<W>
[INFO] [stdout] 57 | | where
[INFO] [stdout] 58 | |     W: World,
[INFO] [stdout]    | |_____________- associated items in this implementation
[INFO] [stdout] 59 |   {
[INFO] [stdout] 60 |       fn new(sender: mpsc::Sender<ViewCmd<W>>) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |       pub fn refresh(&self) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |       pub fn set_world(&self, world: W) {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "74eee2d229c27df72b2babef2dce75dae0d2017ffda8330099569d282f83b98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74eee2d229c27df72b2babef2dce75dae0d2017ffda8330099569d282f83b98b", kill_on_drop: false }`
[INFO] [stdout] 74eee2d229c27df72b2babef2dce75dae0d2017ffda8330099569d282f83b98b