[INFO] fetching crate bus 2.4.1...
[INFO] checking bus-2.4.1 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate bus 2.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bus 2.4.1 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bus 2.4.1
[INFO] finished tweaking crates.io crate bus 2.4.1
[INFO] tweaked toml for crates.io crate bus 2.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd8fda7b41d6fc11c6fcfb66f46f5c0f3e4b6357127c0a202bdbf59bc3bea982
[INFO] running `Command { std: "docker" "start" "-a" "dd8fda7b41d6fc11c6fcfb66f46f5c0f3e4b6357127c0a202bdbf59bc3bea982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd8fda7b41d6fc11c6fcfb66f46f5c0f3e4b6357127c0a202bdbf59bc3bea982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8fda7b41d6fc11c6fcfb66f46f5c0f3e4b6357127c0a202bdbf59bc3bea982", kill_on_drop: false }`
[INFO] [stdout] dd8fda7b41d6fc11c6fcfb66f46f5c0f3e4b6357127c0a202bdbf59bc3bea982
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33e317c7bf11703b5804945e636ab3e161ee9dc0a4868fce7fba1bcee8af6de9
[INFO] running `Command { std: "docker" "start" "-a" "33e317c7bf11703b5804945e636ab3e161ee9dc0a4868fce7fba1bcee8af6de9", kill_on_drop: false }`
[INFO] [stderr]     Checking bus v2.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             drop(state);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&SeatState<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             drop(state);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&SeatState<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "33e317c7bf11703b5804945e636ab3e161ee9dc0a4868fce7fba1bcee8af6de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33e317c7bf11703b5804945e636ab3e161ee9dc0a4868fce7fba1bcee8af6de9", kill_on_drop: false }`
[INFO] [stdout] 33e317c7bf11703b5804945e636ab3e161ee9dc0a4868fce7fba1bcee8af6de9
[INFO] checking bus-2.4.1 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate bus 2.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bus 2.4.1 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bus 2.4.1
[INFO] finished tweaking crates.io crate bus 2.4.1
[INFO] tweaked toml for crates.io crate bus 2.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8456088f65e2b159454a0e90d0d1712a7c5ee467bb8ad01c693d974df1adeccc
[INFO] running `Command { std: "docker" "start" "-a" "8456088f65e2b159454a0e90d0d1712a7c5ee467bb8ad01c693d974df1adeccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8456088f65e2b159454a0e90d0d1712a7c5ee467bb8ad01c693d974df1adeccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8456088f65e2b159454a0e90d0d1712a7c5ee467bb8ad01c693d974df1adeccc", kill_on_drop: false }`
[INFO] [stdout] 8456088f65e2b159454a0e90d0d1712a7c5ee467bb8ad01c693d974df1adeccc
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b6bea9d9528461a9389d419efc61712b708f4a5f4b5609b8547c602e8a5dcc6
[INFO] running `Command { std: "docker" "start" "-a" "6b6bea9d9528461a9389d419efc61712b708f4a5f4b5609b8547c602e8a5dcc6", kill_on_drop: false }`
[INFO] [stderr]     Checking bus v2.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             drop(state);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&SeatState<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             drop(state);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&SeatState<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "6b6bea9d9528461a9389d419efc61712b708f4a5f4b5609b8547c602e8a5dcc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6bea9d9528461a9389d419efc61712b708f4a5f4b5609b8547c602e8a5dcc6", kill_on_drop: false }`
[INFO] [stdout] 6b6bea9d9528461a9389d419efc61712b708f4a5f4b5609b8547c602e8a5dcc6
