[INFO] fetching crate cot_publisher 2.0.0...
[INFO] testing cot_publisher-2.0.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cot_publisher 2.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate cot_publisher 2.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cot_publisher 2.0.0
[INFO] tweaked toml for crates.io crate cot_publisher 2.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cot_publisher 2.0.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cot_publisher 2.0.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 38944edc08b7982c8dabd6586f32beb46454e5577d0a7b5f4a522fb6138ce420
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[INFO] [stderr]    Compiling cot_publisher v2.0.0 (/opt/rustwide/workdir)
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.38s
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[INFO] running `Command { std: "docker" "rm" "-f" "38944edc08b7982c8dabd6586f32beb46454e5577d0a7b5f4a522fb6138ce420", kill_on_drop: false }`
[INFO] [stdout] 38944edc08b7982c8dabd6586f32beb46454e5577d0a7b5f4a522fb6138ce420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03d0ba9c68f1f8fddcab7d2188a8d4377a497e609cc9e45c3345ffbe015bdd24
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[INFO] [stderr]    Compiling prost-build v0.14.1
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[INFO] [stderr]    Compiling cot_publisher v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex v1.12.2
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[INFO] [stdout] error[E0432]: unresolved import `cot_publisher::blocking`
[INFO] [stdout]   --> examples/blocking_multicast.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | use cot_publisher::blocking::CotPublisher;
[INFO] [stdout]    |                    ^^^^^^^^ could not find `blocking` in `cot_publisher`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | #[cfg(feature = "blocking")]
[INFO] [stdout]    |       -------------------- the item is gated behind the `blocking` feature
[INFO] [stdout] 53 | pub mod blocking;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cot_publisher` (example "blocking_multicast") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "03d0ba9c68f1f8fddcab7d2188a8d4377a497e609cc9e45c3345ffbe015bdd24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d0ba9c68f1f8fddcab7d2188a8d4377a497e609cc9e45c3345ffbe015bdd24", kill_on_drop: false }`
[INFO] [stdout] 03d0ba9c68f1f8fddcab7d2188a8d4377a497e609cc9e45c3345ffbe015bdd24