[INFO] fetching crate crossbus-derive 0.0.2-a...
[INFO] checking crossbus-derive-0.0.2-a against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate crossbus-derive 0.0.2-a into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate crossbus-derive 0.0.2-a
[INFO] finished tweaking crates.io crate crossbus-derive 0.0.2-a
[INFO] tweaked toml for crates.io crate crossbus-derive 0.0.2-a written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate crossbus-derive 0.0.2-a on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d1d0ee5d2c3ce7a36e6cc5e962d94b0cbd5c785eb237f28ee13c5a5e673c5ca
[INFO] running `Command { std: "docker" "start" "-a" "3d1d0ee5d2c3ce7a36e6cc5e962d94b0cbd5c785eb237f28ee13c5a5e673c5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d1d0ee5d2c3ce7a36e6cc5e962d94b0cbd5c785eb237f28ee13c5a5e673c5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d1d0ee5d2c3ce7a36e6cc5e962d94b0cbd5c785eb237f28ee13c5a5e673c5ca", kill_on_drop: false }`
[INFO] [stdout] 3d1d0ee5d2c3ce7a36e6cc5e962d94b0cbd5c785eb237f28ee13c5a5e673c5ca
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 978bcfd73cf0851e80cc3bb59b75c4630831150d15b5b55aafb62d6d04cce594
[INFO] running `Command { std: "docker" "start" "-a" "978bcfd73cf0851e80cc3bb59b75c4630831150d15b5b55aafb62d6d04cce594", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbus-derive v0.0.2-a (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `ControlFlow` that must be used
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     stream
[INFO] [stdout] 11 | |         .into_iter()
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |             ControlFlow::Continue(())
[INFO] [stdout] 23 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let _ = stream
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `ControlFlow` that must be used
[INFO] [stdout]   --> src/lib.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     stream
[INFO] [stdout] 58 | |         .into_iter()
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |             ControlFlow::Continue(())
[INFO] [stdout] 70 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let _ = stream
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `ControlFlow` that must be used
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     stream
[INFO] [stdout] 11 | |         .into_iter()
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |             ControlFlow::Continue(())
[INFO] [stdout] 23 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let _ = stream
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `ControlFlow` that must be used
[INFO] [stdout]   --> src/lib.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     stream
[INFO] [stdout] 58 | |         .into_iter()
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |             ControlFlow::Continue(())
[INFO] [stdout] 70 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let _ = stream
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "978bcfd73cf0851e80cc3bb59b75c4630831150d15b5b55aafb62d6d04cce594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978bcfd73cf0851e80cc3bb59b75c4630831150d15b5b55aafb62d6d04cce594", kill_on_drop: false }`
[INFO] [stdout] 978bcfd73cf0851e80cc3bb59b75c4630831150d15b5b55aafb62d6d04cce594