[INFO] fetching crate polybox 0.0.2...
[INFO] testing polybox-0.0.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate polybox 0.0.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate polybox 0.0.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate polybox 0.0.2
[INFO] tweaked toml for crates.io crate polybox 0.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polybox 0.0.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polybox 0.0.2 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seedable_hash v0.1.7
[INFO] [stderr]   Downloaded wyhash v0.5.0
[INFO] [stderr]   Downloaded ph v0.8.5
[INFO] [stderr]   Downloaded type-sets v0.0.6
[INFO] [stderr]   Downloaded binout v0.2.1
[INFO] [stderr]   Downloaded csf v0.1.14
[INFO] [stderr]   Downloaded dyn_size_of v0.4.5
[INFO] [stderr]   Downloaded polybox-codegen v0.0.2
[INFO] [stderr]   Downloaded minimum_redundancy v0.3.3
[INFO] [stderr]   Downloaded bitm v0.4.3
[INFO] [stderr]   Downloaded binout v0.3.1
[INFO] [stderr]   Downloaded fsum v0.1.3
[INFO] [stderr]   Downloaded co_sort v0.2.0
[INFO] [stderr]   Downloaded polybox-core v0.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537
[INFO] running `Command { std: "docker" "start" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.22
[INFO] [stderr]    Compiling dyn_size_of v0.4.5
[INFO] [stderr]    Compiling xxhash-rust v0.8.18
[INFO] [stderr]    Compiling binout v0.3.1
[INFO] [stderr]    Compiling futures-core v0.3.33
[INFO] [stderr]    Compiling futures-sink v0.3.33
[INFO] [stderr]    Compiling either v1.16.0
[INFO] [stderr]    Compiling co_sort v0.2.0
[INFO] [stderr]    Compiling wyhash v0.5.0
[INFO] [stderr]    Compiling futures-io v0.3.33
[INFO] [stderr]    Compiling fsum v0.1.3
[INFO] [stderr]    Compiling futures-task v0.3.33
[INFO] [stderr]    Compiling binout v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.33
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling polybox-codegen v0.0.2
[INFO] [stderr]    Compiling bitm v0.4.3
[INFO] [stderr]    Compiling tokio v1.53.1
[INFO] [stderr]    Compiling futures-channel v0.3.33
[INFO] [stderr]    Compiling seedable_hash v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.33
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.20
[INFO] [stderr]    Compiling minimum_redundancy v0.3.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.7
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling futures-executor v0.3.33
[INFO] [stderr]    Compiling futures v0.3.33
[INFO] [stderr]    Compiling ph v0.8.5
[INFO] [stderr]    Compiling csf v0.1.14
[INFO] [stderr]    Compiling type-sets v0.0.6
[INFO] [stderr]    Compiling polybox-core v0.0.2
[INFO] [stderr]    Compiling polybox v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 11.86s
[INFO] running `Command { std: "docker" "inspect" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-macros v2.7.1
[INFO] [stderr]    Compiling tokio v1.53.1
[INFO] [stderr]    Compiling polybox-core v0.0.2
[INFO] [stderr]    Compiling polybox v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `polybox::inboxes::FlumeInbox`
[INFO] [stdout]   --> tests/example.rs:3:15
[INFO] [stdout]    |
[INFO] [stdout]  3 |     inboxes::{FlumeInbox, TokioInbox},
[INFO] [stdout]    |               ^^^^^^^^^^ no `FlumeInbox` in `inboxes`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/lib.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[cfg(feature = "flume")]
[INFO] [stdout]    |           ----------------- the item is gated behind the `flume` feature
[INFO] [stdout] 12 |     pub use crate::flume_inbox::FlumeInbox;
[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 `polybox` (test "example") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537", kill_on_drop: false }`
[INFO] [stdout] a74c27c7ff4f65494e54570db997df090114764c99ce840c836db05b2f97d537
