[INFO] fetching crate lending-stream 1.0.0...
[INFO] checking lending-stream-1.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lending-stream 1.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate lending-stream 1.0.0 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] started tweaking crates.io crate lending-stream 1.0.0
[INFO] finished tweaking crates.io crate lending-stream 1.0.0
[INFO] tweaked toml for crates.io crate lending-stream 1.0.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 17 packages
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 22eb4da8c92db691eceb106c3534635e36419eca073ab93356284b570babf05d
[INFO] running `Command { std: "docker" "start" "-a" "22eb4da8c92db691eceb106c3534635e36419eca073ab93356284b570babf05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22eb4da8c92db691eceb106c3534635e36419eca073ab93356284b570babf05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22eb4da8c92db691eceb106c3534635e36419eca073ab93356284b570babf05d", kill_on_drop: false }`
[INFO] [stdout] 22eb4da8c92db691eceb106c3534635e36419eca073ab93356284b570babf05d
[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] 67d8e8155b5048cbc345b2738f1d2fd1700b18b6302024b8e0187c55c18d0087
[INFO] running `Command { std: "docker" "start" "-a" "67d8e8155b5048cbc345b2738f1d2fd1700b18b6302024b8e0187c55c18d0087", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking lending-stream v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Stream` is imported redundantly
[INFO] [stdout]  --> tests/test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures_core::Stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use futures_lite::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `Stream` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.59s
[INFO] running `Command { std: "docker" "inspect" "67d8e8155b5048cbc345b2738f1d2fd1700b18b6302024b8e0187c55c18d0087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d8e8155b5048cbc345b2738f1d2fd1700b18b6302024b8e0187c55c18d0087", kill_on_drop: false }`
[INFO] [stdout] 67d8e8155b5048cbc345b2738f1d2fd1700b18b6302024b8e0187c55c18d0087