[INFO] fetching crate doublecross 0.2.1...
[INFO] testing doublecross-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate doublecross 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate doublecross 0.2.1
[INFO] finished tweaking crates.io crate doublecross 0.2.1
[INFO] tweaked toml for crates.io crate doublecross 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate doublecross 0.2.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding crossbeam-channel v0.2.6 (available: v0.5.15)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b25fe7d52c1c99ce78023e6f8c030a60fb0d385d82663754941766d0e483a940
[INFO] running `Command { std: "docker" "start" "-a" "b25fe7d52c1c99ce78023e6f8c030a60fb0d385d82663754941766d0e483a940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b25fe7d52c1c99ce78023e6f8c030a60fb0d385d82663754941766d0e483a940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b25fe7d52c1c99ce78023e6f8c030a60fb0d385d82663754941766d0e483a940", kill_on_drop: false }`
[INFO] [stdout] b25fe7d52c1c99ce78023e6f8c030a60fb0d385d82663754941766d0e483a940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0304cb676c57c0de55d89b74db4cd4b1735846cbf445e72a80faf0847d2ba768
[INFO] running `Command { std: "docker" "start" "-a" "0304cb676c57c0de55d89b74db4cd4b1735846cbf445e72a80faf0847d2ba768", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling doublecross v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `Command { std: "docker" "inspect" "0304cb676c57c0de55d89b74db4cd4b1735846cbf445e72a80faf0847d2ba768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0304cb676c57c0de55d89b74db4cd4b1735846cbf445e72a80faf0847d2ba768", kill_on_drop: false }`
[INFO] [stdout] 0304cb676c57c0de55d89b74db4cd4b1735846cbf445e72a80faf0847d2ba768
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7f8682219328488dcd58b61b659df193d97b3c7a774b042b607d2cd2b04018ba
[INFO] running `Command { std: "docker" "start" "-a" "7f8682219328488dcd58b61b659df193d97b3c7a774b042b607d2cd2b04018ba", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling doublecross v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 | /         select! {
[INFO] [stdout] 168 | |             recv(right, _msg) => {},
[INFO] [stdout] 169 | |             recv(channel::after(timeout)) => {
[INFO] [stdout] 170 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stdout] 171 | |             },
[INFO] [stdout] 172 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 | /         select! {
[INFO] [stdout] 168 | |             recv(right, _msg) => {},
[INFO] [stdout] 169 | |             recv(channel::after(timeout)) => {
[INFO] [stdout] 170 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stdout] 171 | |             },
[INFO] [stdout] 172 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 | /         select! {
[INFO] [stdout] 168 | |             recv(right, _msg) => {},
[INFO] [stdout] 169 | |             recv(channel::after(timeout)) => {
[INFO] [stdout] 170 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stdout] 171 | |             },
[INFO] [stdout] 172 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 | /         select! {
[INFO] [stdout] 185 | |             send(right, ()) => {},
[INFO] [stdout] 186 | |             recv(channel::after(timeout)) => {
[INFO] [stdout] 187 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stdout] 188 | |             },
[INFO] [stdout] 189 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 | /         select! {
[INFO] [stdout] 185 | |             send(right, ()) => {},
[INFO] [stdout] 186 | |             recv(channel::after(timeout)) => {
[INFO] [stdout] 187 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stdout] 188 | |             },
[INFO] [stdout] 189 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 | /         select! {
[INFO] [stdout] 185 | |             send(right, ()) => {},
[INFO] [stdout] 186 | |             recv(channel::after(timeout)) => {
[INFO] [stdout] 187 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stdout] 188 | |             },
[INFO] [stdout] 189 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "7f8682219328488dcd58b61b659df193d97b3c7a774b042b607d2cd2b04018ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f8682219328488dcd58b61b659df193d97b3c7a774b042b607d2cd2b04018ba", kill_on_drop: false }`
[INFO] [stdout] 7f8682219328488dcd58b61b659df193d97b3c7a774b042b607d2cd2b04018ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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", kill_on_drop: false }`
[INFO] [stdout] c3d13dee19739b0f6af62669a782082c37dd0a7ea8c22562f4a5f4c4306895ed
[INFO] running `Command { std: "docker" "start" "-a" "c3d13dee19739b0f6af62669a782082c37dd0a7ea8c22562f4a5f4c4306895ed", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]    --> src/lib.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 | /         select! {
[INFO] [stderr] 168 | |             recv(right, _msg) => {},
[INFO] [stderr] 169 | |             recv(channel::after(timeout)) => {
[INFO] [stderr] 170 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stderr] 171 | |             },
[INFO] [stderr] 172 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]    --> src/lib.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 | /         select! {
[INFO] [stderr] 168 | |             recv(right, _msg) => {},
[INFO] [stderr] 169 | |             recv(channel::after(timeout)) => {
[INFO] [stderr] 170 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stderr] 171 | |             },
[INFO] [stderr] 172 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]    --> src/lib.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 | /         select! {
[INFO] [stderr] 185 | |             send(right, ()) => {},
[INFO] [stderr] 186 | |             recv(channel::after(timeout)) => {
[INFO] [stderr] 187 | |                 panic!("timeout waiting for rendezvous");
[INFO] [stderr] 188 | |             },
[INFO] [stderr] 189 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `select` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `select` may come from an old version of the `crossbeam_channel` crate, try updating your dependency with `cargo update -p crossbeam_channel`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `doublecross` (lib) generated 1 warning
[INFO] [stderr] warning: `doublecross` (lib test) generated 6 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/doublecross-b706cca900f2a637)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::asymmetric_message_types ... ok
[INFO] [stdout] test tests::simultaneous_handover ... ok
[INFO] [stdout] test tests::rendezvous_send_select ... ok
[INFO] [stdout] test tests::rendezvous_recv_select ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests doublecross
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - unbounded (line 94) ... ok
[INFO] [stdout] test src/lib.rs - bounded (line 60) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3d13dee19739b0f6af62669a782082c37dd0a7ea8c22562f4a5f4c4306895ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d13dee19739b0f6af62669a782082c37dd0a7ea8c22562f4a5f4c4306895ed", kill_on_drop: false }`
[INFO] [stdout] c3d13dee19739b0f6af62669a782082c37dd0a7ea8c22562f4a5f4c4306895ed
