[INFO] fetching crate stream_throttle 0.5.1...
[INFO] checking stream_throttle-0.5.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate stream_throttle 0.5.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate stream_throttle 0.5.1 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] started tweaking crates.io crate stream_throttle 0.5.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate stream_throttle 0.5.1
[INFO] tweaked toml for crates.io crate stream_throttle 0.5.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate stream_throttle 0.5.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 950c1998c0e3fe5f1a26d676e3077d82421b9861540e874400e7d4ae18a94c34
[INFO] running `Command { std: "docker" "start" "-a" "950c1998c0e3fe5f1a26d676e3077d82421b9861540e874400e7d4ae18a94c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "950c1998c0e3fe5f1a26d676e3077d82421b9861540e874400e7d4ae18a94c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950c1998c0e3fe5f1a26d676e3077d82421b9861540e874400e7d4ae18a94c34", kill_on_drop: false }`
[INFO] [stdout] 950c1998c0e3fe5f1a26d676e3077d82421b9861540e874400e7d4ae18a94c34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d1b692d86c977018a964c41f547b9350c5f50e8241cf2b19ebf338070158da3c
[INFO] running `Command { std: "docker" "start" "-a" "d1b692d86c977018a964c41f547b9350c5f50e8241cf2b19ebf338070158da3c", kill_on_drop: false }`
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[INFO] [stderr]     Checking stream_throttle v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `stream` is imported redundantly
[INFO] [stdout]   --> examples/hold_tokio.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use futures::prelude::*;
[INFO] [stdout]    |     ------------------- the item `stream` is already imported here
[INFO] [stdout] 14 | use futures::stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `stream` is imported redundantly
[INFO] [stdout]  --> examples/multi_stream_tokio.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::prelude::*;
[INFO] [stdout]   |     ------------------- the item `stream` is already imported here
[INFO] [stdout] 4 | use futures::stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.68s
[INFO] running `Command { std: "docker" "inspect" "d1b692d86c977018a964c41f547b9350c5f50e8241cf2b19ebf338070158da3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b692d86c977018a964c41f547b9350c5f50e8241cf2b19ebf338070158da3c", kill_on_drop: false }`
[INFO] [stdout] d1b692d86c977018a964c41f547b9350c5f50e8241cf2b19ebf338070158da3c