[INFO] fetching crate tokio-blocking 0.1.1...
[INFO] testing tokio-blocking-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tokio-blocking 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tokio-blocking 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-blocking 0.1.1
[INFO] finished tweaking crates.io crate tokio-blocking 0.1.1
[INFO] tweaked toml for crates.io crate tokio-blocking 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 135663dd29453d74ee178bc95f1cb3e752f9ff1708f0759da56ca11dc25e1366
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "135663dd29453d74ee178bc95f1cb3e752f9ff1708f0759da56ca11dc25e1366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "135663dd29453d74ee178bc95f1cb3e752f9ff1708f0759da56ca11dc25e1366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135663dd29453d74ee178bc95f1cb3e752f9ff1708f0759da56ca11dc25e1366", kill_on_drop: false }`
[INFO] [stdout] 135663dd29453d74ee178bc95f1cb3e752f9ff1708f0759da56ca11dc25e1366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da898fc0a80c327fa607b409b21102d2556259f7d2d53a45e5a93c586aff61d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da898fc0a80c327fa607b409b21102d2556259f7d2d53a45e5a93c586aff61d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling tokio-blocking v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "da898fc0a80c327fa607b409b21102d2556259f7d2d53a45e5a93c586aff61d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da898fc0a80c327fa607b409b21102d2556259f7d2d53a45e5a93c586aff61d3", kill_on_drop: false }`
[INFO] [stdout] da898fc0a80c327fa607b409b21102d2556259f7d2d53a45e5a93c586aff61d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ead720c79ec8ba8fa1205efa28a6066bd48d08aef77b200d60363226e23013ed
[INFO] running `Command { std: "docker" "start" "-a" "ead720c79ec8ba8fa1205efa28a6066bd48d08aef77b200d60363226e23013ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-blocking v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> tests/combinators.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::runtime::Runtime;
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> tests/combinators.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::timer::Interval;
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Interval`
[INFO] [stdout]  --> tests/combinators.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Interval::new(std::time::Instant::now(), std::time::Duration::from_secs(1))
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared type `Interval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> tests/combinators.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut runtime = Runtime::new().unwrap();
[INFO] [stdout]    |                       ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> tests/combinators.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut runtime = Runtime::new().unwrap();
[INFO] [stdout]    |                       ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> tests/combinators.rs:79:23
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut runtime = Runtime::new().unwrap();
[INFO] [stdout]    |                       ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]    --> tests/combinators.rs:116:23
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let mut runtime = Runtime::new().unwrap();
[INFO] [stdout]     |                       ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-blocking`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ead720c79ec8ba8fa1205efa28a6066bd48d08aef77b200d60363226e23013ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead720c79ec8ba8fa1205efa28a6066bd48d08aef77b200d60363226e23013ed", kill_on_drop: false }`
[INFO] [stdout] ead720c79ec8ba8fa1205efa28a6066bd48d08aef77b200d60363226e23013ed