[INFO] fetching crate generic-channel 0.2.0... [INFO] testing generic-channel-0.2.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate generic-channel 0.2.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate generic-channel 0.2.0 [INFO] finished tweaking crates.io crate generic-channel 0.2.0 [INFO] tweaked toml for crates.io crate generic-channel 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate generic-channel 0.2.0 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 5 packages to latest compatible versions [INFO] [stderr] Adding crossbeam-channel v0.3.9 (available: v0.5.15) [INFO] [stderr] Adding futures v0.1.31 (available: v0.3.31) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8090f4f39c6bbeb3b522fe6e9d4af3c537dde13a7eadbd22d84c29f8022c05cf [INFO] running `Command { std: "docker" "start" "-a" "8090f4f39c6bbeb3b522fe6e9d4af3c537dde13a7eadbd22d84c29f8022c05cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8090f4f39c6bbeb3b522fe6e9d4af3c537dde13a7eadbd22d84c29f8022c05cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8090f4f39c6bbeb3b522fe6e9d4af3c537dde13a7eadbd22d84c29f8022c05cf", kill_on_drop: false }` [INFO] [stdout] 8090f4f39c6bbeb3b522fe6e9d4af3c537dde13a7eadbd22d84c29f8022c05cf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f62f70bcd5052d481c9f9bb359fa280e3a6db12fbc0abcb0aa70ff74a96950a [INFO] running `Command { std: "docker" "start" "-a" "1f62f70bcd5052d481c9f9bb359fa280e3a6db12fbc0abcb0aa70ff74a96950a", kill_on_drop: false }` [INFO] [stderr] Compiling generic-channel v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `crossbeam_channel` [INFO] [stdout] --> src/receiver.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | #[cfg(feature = "crossbeam_channel")] [INFO] [stdout] | ^^^^^^^^^^------------------- [INFO] [stdout] | | [INFO] [stdout] | help: there is a expected value with a similar name: `"crossbeam-channel"` [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `all`, `crossbeam-channel`, and `futures` [INFO] [stdout] = help: consider adding `crossbeam_channel` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "1f62f70bcd5052d481c9f9bb359fa280e3a6db12fbc0abcb0aa70ff74a96950a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f62f70bcd5052d481c9f9bb359fa280e3a6db12fbc0abcb0aa70ff74a96950a", kill_on_drop: false }` [INFO] [stdout] 1f62f70bcd5052d481c9f9bb359fa280e3a6db12fbc0abcb0aa70ff74a96950a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8b72190d88c39e649458ea0ca06ce478c1ed5d04fe31a18feaf546103b281e28 [INFO] running `Command { std: "docker" "start" "-a" "8b72190d88c39e649458ea0ca06ce478c1ed5d04fe31a18feaf546103b281e28", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling futures v0.1.31 [INFO] [stdout] warning: unexpected `cfg` condition value: `crossbeam_channel` [INFO] [stdout] --> src/receiver.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | #[cfg(feature = "crossbeam_channel")] [INFO] [stdout] | ^^^^^^^^^^------------------- [INFO] [stdout] | | [INFO] [stdout] | help: there is a expected value with a similar name: `"crossbeam-channel"` [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `all`, `crossbeam-channel`, and `futures` [INFO] [stdout] = help: consider adding `crossbeam_channel` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling generic-channel v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `crossbeam_channel` [INFO] [stdout] --> src/receiver.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | #[cfg(feature = "crossbeam_channel")] [INFO] [stdout] | ^^^^^^^^^^------------------- [INFO] [stdout] | | [INFO] [stdout] | help: there is a expected value with a similar name: `"crossbeam-channel"` [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `all`, `crossbeam-channel`, and `futures` [INFO] [stdout] = help: consider adding `crossbeam_channel` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `generic-channel` (lib test) due to 1 previous error; 1 warning emitted [INFO] [stdout] error[E0596]: cannot borrow `*sender` as mutable, as `sender` is not declared as mutable [INFO] [stdout] --> src/lib.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let sender: Box> = Box::new(sender); [INFO] [stdout] | ^^^^^^ not mutable [INFO] [stdout] 54 | sender.try_send(1).expect("send"); [INFO] [stdout] | ------ cannot borrow as mutable [INFO] [stdout] ... [INFO] [stdout] 57 | assert_eq!(sender.try_send(2), Err(TrySendError::Disconnected(2u8))); [INFO] [stdout] | ------ cannot borrow as mutable [INFO] [stdout] | [INFO] [stdout] help: consider changing this to be mutable [INFO] [stdout] | [INFO] [stdout] 53 | let mut sender: Box> = Box::new(sender); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0596`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8b72190d88c39e649458ea0ca06ce478c1ed5d04fe31a18feaf546103b281e28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b72190d88c39e649458ea0ca06ce478c1ed5d04fe31a18feaf546103b281e28", kill_on_drop: false }` [INFO] [stdout] 8b72190d88c39e649458ea0ca06ce478c1ed5d04fe31a18feaf546103b281e28