[INFO] fetching crate voiceit2 0.4.0...
[INFO] checking voiceit2-0.4.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate voiceit2 0.4.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate voiceit2 0.4.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate voiceit2 0.4.0
[INFO] finished tweaking crates.io crate voiceit2 0.4.0
[INFO] tweaked toml for crates.io crate voiceit2 0.4.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 7e22cf520ecbe02e9fb7c5d9f32fd93b515bbe3d1b901db3d82e6f17d18e56fd
[INFO] running `Command { std: "docker" "start" "-a" "7e22cf520ecbe02e9fb7c5d9f32fd93b515bbe3d1b901db3d82e6f17d18e56fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e22cf520ecbe02e9fb7c5d9f32fd93b515bbe3d1b901db3d82e6f17d18e56fd", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db3afdabfaf3a295d9d9c75925930ed8c55c85662da5cf1d51afad8b124a7ca2
[INFO] running `Command { std: "docker" "start" "-a" "db3afdabfaf3a295d9d9c75925930ed8c55c85662da5cf1d51afad8b124a7ca2", kill_on_drop: false }`
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[INFO] [stderr]     Checking voiceit2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 |         &x.add_notification_url("https://voiceit.io");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         &x.remove_notification_url();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         &x.delete_user(&user_id1).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:567:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |         &x.delete_user(&user_id2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:568:9
[INFO] [stdout]     |
[INFO] [stdout] 568 |         &x.delete_group(&group_id).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.37s
[INFO] running `Command { std: "docker" "inspect" "db3afdabfaf3a295d9d9c75925930ed8c55c85662da5cf1d51afad8b124a7ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3afdabfaf3a295d9d9c75925930ed8c55c85662da5cf1d51afad8b124a7ca2", kill_on_drop: false }`
[INFO] [stdout] db3afdabfaf3a295d9d9c75925930ed8c55c85662da5cf1d51afad8b124a7ca2