[INFO] fetching crate tokio-cache 0.2.0-alpha.1...
[INFO] testing tokio-cache-0.2.0-alpha.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate tokio-cache 0.2.0-alpha.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tokio-cache 0.2.0-alpha.1
[INFO] finished tweaking crates.io crate tokio-cache 0.2.0-alpha.1
[INFO] tweaked toml for crates.io crate tokio-cache 0.2.0-alpha.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-cache 0.2.0-alpha.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding arc-swap v0.4.8 (available: v1.9.1)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding im v13.0.0 (available: v15.1.0)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.51.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98183290414da8888a865da217c58d45a9623557da5eb0d6bde19578d244adc6
[INFO] running `Command { std: "docker" "start" "-a" "98183290414da8888a865da217c58d45a9623557da5eb0d6bde19578d244adc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98183290414da8888a865da217c58d45a9623557da5eb0d6bde19578d244adc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98183290414da8888a865da217c58d45a9623557da5eb0d6bde19578d244adc6", kill_on_drop: false }`
[INFO] [stdout] 98183290414da8888a865da217c58d45a9623557da5eb0d6bde19578d244adc6
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 788a24cd77e7e039e9c55c703cbcb64aa68811fbac164df54923e386644e1a9e
[INFO] running `Command { std: "docker" "start" "-a" "788a24cd77e7e039e9c55c703cbcb64aa68811fbac164df54923e386644e1a9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling arc-swap v0.4.8
[INFO] [stderr]    Compiling sized-chunks v0.3.1
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling im v13.0.0
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-cache v0.2.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "788a24cd77e7e039e9c55c703cbcb64aa68811fbac164df54923e386644e1a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "788a24cd77e7e039e9c55c703cbcb64aa68811fbac164df54923e386644e1a9e", kill_on_drop: false }`
[INFO] [stdout] 788a24cd77e7e039e9c55c703cbcb64aa68811fbac164df54923e386644e1a9e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b58a4e4e27e15a590e9ecb30a19aba6e71c3f2ecd311a5101f7a7e7de49216e7
[INFO] running `Command { std: "docker" "start" "-a" "b58a4e4e27e15a590e9ecb30a19aba6e71c3f2ecd311a5101f7a7e7de49216e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling tokio-cache v0.2.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find `test` in `tokio`
[INFO] [stdout]   --> src/async_cache.rs:92:14
[INFO] [stdout]    |
[INFO] [stdout] 92 |     #[tokio::test]
[INFO] [stdout]    |              ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `test` in `tokio`
[INFO] [stdout]    --> src/async_cache.rs:104:14
[INFO] [stdout]     |
[INFO] [stdout] 104 |     #[tokio::test]
[INFO] [stdout]     |              ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `test` in `tokio`
[INFO] [stdout]    --> src/core.rs:161:14
[INFO] [stdout]     |
[INFO] [stdout] 161 |     #[tokio::test]
[INFO] [stdout]     |              ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `test` in `tokio`
[INFO] [stdout]    --> src/core.rs:175:14
[INFO] [stdout]     |
[INFO] [stdout] 175 |     #[tokio::test]
[INFO] [stdout]     |              ^^^^ could not find `test` in `tokio`
[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-cache` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "b58a4e4e27e15a590e9ecb30a19aba6e71c3f2ecd311a5101f7a7e7de49216e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b58a4e4e27e15a590e9ecb30a19aba6e71c3f2ecd311a5101f7a7e7de49216e7", kill_on_drop: false }`
[INFO] [stdout] b58a4e4e27e15a590e9ecb30a19aba6e71c3f2ecd311a5101f7a7e7de49216e7