[INFO] fetching crate medea-reactive 0.1.2...
[INFO] checking medea-reactive-0.1.2 against master#36b61e5aa593cc60cc92fc548b0d351e414aee2a for pr-116930
[INFO] extracting crate medea-reactive 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate medea-reactive 0.1.2 on toolchain 36b61e5aa593cc60cc92fc548b0d351e414aee2a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate medea-reactive 0.1.2
[INFO] finished tweaking crates.io crate medea-reactive 0.1.2
[INFO] tweaked toml for crates.io crate medea-reactive 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 333c02e5b61502cf0c4ebc8d67803b564dd1a039004d1faa33e5d89f908af520
[INFO] running `Command { std: "docker" "start" "-a" "333c02e5b61502cf0c4ebc8d67803b564dd1a039004d1faa33e5d89f908af520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "333c02e5b61502cf0c4ebc8d67803b564dd1a039004d1faa33e5d89f908af520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333c02e5b61502cf0c4ebc8d67803b564dd1a039004d1faa33e5d89f908af520", kill_on_drop: false }`
[INFO] [stdout] 333c02e5b61502cf0c4ebc8d67803b564dd1a039004d1faa33e5d89f908af520
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaaeee5ceb66a981635906ad0d2c10f85df15b7c53eef495917b411ff71d28c5
[INFO] running `Command { std: "docker" "start" "-a" "eaaeee5ceb66a981635906ad0d2c10f85df15b7c53eef495917b411ff71d28c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking medea-reactive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-binding let on a type that implements `Drop`
[INFO] [stdout]    --> src/subscribers_store/progressable/processed.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 | /                 let _ = spawn_local({
[INFO] [stdout] 163 | |                     let updatable_cell = Rc::clone(&updatable_cell);
[INFO] [stdout] 164 | |                     let mut updatable_cell_rx =
[INFO] [stdout] 165 | |                         updatable_cell.subscribe().skip(1).fuse();
[INFO] [stdout] ...   |
[INFO] [stdout] 185 | |                     }
[INFO] [stdout] 186 | |                 });
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let_underscore_drop,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 162 |                 let _unused = spawn_local({
[INFO] [stdout]     |                     ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 162 ~                 drop(spawn_local({
[INFO] [stdout] 163 |                     let updatable_cell = Rc::clone(&updatable_cell);
[INFO] [stdout]   ...
[INFO] [stdout] 185 |                     }
[INFO] [stdout] 186 ~                 }));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "eaaeee5ceb66a981635906ad0d2c10f85df15b7c53eef495917b411ff71d28c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaaeee5ceb66a981635906ad0d2c10f85df15b7c53eef495917b411ff71d28c5", kill_on_drop: false }`
[INFO] [stdout] eaaeee5ceb66a981635906ad0d2c10f85df15b7c53eef495917b411ff71d28c5