[INFO] fetching crate tower-duplex 0.1.1...
[INFO] checking tower-duplex-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate tower-duplex 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate tower-duplex 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate tower-duplex 0.1.1
[INFO] finished tweaking crates.io crate tower-duplex 0.1.1
[INFO] tweaked toml for crates.io crate tower-duplex 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 100 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ce0ccfc639813a79674d5c773dbc98c8a06e6ef01fe8322b2492d30ee110401
[INFO] running `Command { std: "docker" "start" "-a" "2ce0ccfc639813a79674d5c773dbc98c8a06e6ef01fe8322b2492d30ee110401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ce0ccfc639813a79674d5c773dbc98c8a06e6ef01fe8322b2492d30ee110401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce0ccfc639813a79674d5c773dbc98c8a06e6ef01fe8322b2492d30ee110401", kill_on_drop: false }`
[INFO] [stdout] 2ce0ccfc639813a79674d5c773dbc98c8a06e6ef01fe8322b2492d30ee110401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce10dd1ed654fbb2ca27e927f2698042d77d8b4cd335bdc413241395cdaf6311
[INFO] running `Command { std: "docker" "start" "-a" "ce10dd1ed654fbb2ca27e927f2698042d77d8b4cd335bdc413241395cdaf6311", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking tower-duplex v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `futures::stream::FuturesOrdered::<Fut>::push`: use `push_back` instead
[INFO] [stdout]    --> src/lib.rs:219:26
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 send_fut.push(do_send(to_send, sender.take()));
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::stream::FuturesOrdered::<Fut>::push`: use `push_back` instead
[INFO] [stdout]    --> src/lib.rs:219:26
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 send_fut.push(do_send(to_send, sender.take()));
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::stream::FuturesOrdered::<Fut>::push`: use `push_back` instead
[INFO] [stdout]    --> src/test.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |         c1.push(client1.call(Req1(i.to_string())));
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::stream::FuturesOrdered::<Fut>::push`: use `push_back` instead
[INFO] [stdout]    --> src/test.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |         c2.push(client2.do_call(Req2(i)));
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.34s
[INFO] running `Command { std: "docker" "inspect" "ce10dd1ed654fbb2ca27e927f2698042d77d8b4cd335bdc413241395cdaf6311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce10dd1ed654fbb2ca27e927f2698042d77d8b4cd335bdc413241395cdaf6311", kill_on_drop: false }`
[INFO] [stdout] ce10dd1ed654fbb2ca27e927f2698042d77d8b4cd335bdc413241395cdaf6311