[INFO] fetching crate tokio-rayon 2.1.0...
[INFO] checking tokio-rayon-2.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tokio-rayon 2.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tokio-rayon 2.1.0 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 tokio-rayon 2.1.0
[INFO] finished tweaking crates.io crate tokio-rayon 2.1.0
[INFO] tweaked toml for crates.io crate tokio-rayon 2.1.0 written to /workspace/builds/worker-4-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 33 packages
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] defc4241cf337386d98ae2603e564131f5aa653f68b365ee6fdeabe34587ceff
[INFO] running `Command { std: "docker" "start" "-a" "defc4241cf337386d98ae2603e564131f5aa653f68b365ee6fdeabe34587ceff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "defc4241cf337386d98ae2603e564131f5aa653f68b365ee6fdeabe34587ceff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "defc4241cf337386d98ae2603e564131f5aa653f68b365ee6fdeabe34587ceff", kill_on_drop: false }`
[INFO] [stdout] defc4241cf337386d98ae2603e564131f5aa653f68b365ee6fdeabe34587ceff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0b91ad96298a5ff93126c74cba06875aba41696e8d16a12acd6beea327bd039b
[INFO] running `Command { std: "docker" "start" "-a" "0b91ad96298a5ff93126c74cba06875aba41696e8d16a12acd6beea327bd039b", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking tokio-rayon v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stdout] warning: the item `thread` is imported redundantly
[INFO] [stdout]   --> src/async_handle.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use super::*;
[INFO] [stdout]    |         -------- the item `thread` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 35 |     use std::thread;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ThreadPool` is imported redundantly
[INFO] [stdout]   --> src/async_thread_pool.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use super::*;
[INFO] [stdout]    |         -------- the item `ThreadPool` is already imported here
[INFO] [stdout] 91 |     use rayon::{ThreadPool, ThreadPoolBuilder};
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.67s
[INFO] running `Command { std: "docker" "inspect" "0b91ad96298a5ff93126c74cba06875aba41696e8d16a12acd6beea327bd039b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b91ad96298a5ff93126c74cba06875aba41696e8d16a12acd6beea327bd039b", kill_on_drop: false }`
[INFO] [stdout] 0b91ad96298a5ff93126c74cba06875aba41696e8d16a12acd6beea327bd039b
[INFO] checking tokio-rayon-2.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tokio-rayon 2.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate tokio-rayon 2.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-rayon 2.1.0
[INFO] finished tweaking crates.io crate tokio-rayon 2.1.0
[INFO] tweaked toml for crates.io crate tokio-rayon 2.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6675c3adcf6009691cd6d7e7e48cecf5a5a3729163bd101570968402e3a29056
[INFO] running `Command { std: "docker" "start" "-a" "6675c3adcf6009691cd6d7e7e48cecf5a5a3729163bd101570968402e3a29056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6675c3adcf6009691cd6d7e7e48cecf5a5a3729163bd101570968402e3a29056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6675c3adcf6009691cd6d7e7e48cecf5a5a3729163bd101570968402e3a29056", kill_on_drop: false }`
[INFO] [stdout] 6675c3adcf6009691cd6d7e7e48cecf5a5a3729163bd101570968402e3a29056
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11ceacf7140098df89287e4ca94574b19bac28307f170751864a265812368da9
[INFO] running `Command { std: "docker" "start" "-a" "11ceacf7140098df89287e4ca94574b19bac28307f170751864a265812368da9", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking tokio-rayon v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stdout] warning: the item `thread` is imported redundantly
[INFO] [stdout]   --> src/async_handle.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use super::*;
[INFO] [stdout]    |         -------- the item `thread` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 35 |     use std::thread;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ThreadPool` is imported redundantly
[INFO] [stdout]   --> src/async_thread_pool.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use super::*;
[INFO] [stdout]    |         -------- the item `ThreadPool` is already imported here
[INFO] [stdout] 91 |     use rayon::{ThreadPool, ThreadPoolBuilder};
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.03s
[INFO] running `Command { std: "docker" "inspect" "11ceacf7140098df89287e4ca94574b19bac28307f170751864a265812368da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ceacf7140098df89287e4ca94574b19bac28307f170751864a265812368da9", kill_on_drop: false }`
[INFO] [stdout] 11ceacf7140098df89287e4ca94574b19bac28307f170751864a265812368da9