[INFO] fetching crate async-tls 0.11.0...
[INFO] checking async-tls-0.11.0 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate async-tls 0.11.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate async-tls 0.11.0 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-tls 0.11.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate async-tls 0.11.0
[INFO] tweaked toml for crates.io crate async-tls 0.11.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45a6f79dcd194fbfd7d7f7f17402386fc9c841db90f90c4dcfa46bfdd38092de
[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" "45a6f79dcd194fbfd7d7f7f17402386fc9c841db90f90c4dcfa46bfdd38092de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45a6f79dcd194fbfd7d7f7f17402386fc9c841db90f90c4dcfa46bfdd38092de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a6f79dcd194fbfd7d7f7f17402386fc9c841db90f90c4dcfa46bfdd38092de", kill_on_drop: false }`
[INFO] [stdout] 45a6f79dcd194fbfd7d7f7f17402386fc9c841db90f90c4dcfa46bfdd38092de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4daad152f195007a3d5638a849f39041daf00b8c182d56a55aaac7dafdbaf4f9
[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" "4daad152f195007a3d5638a849f39041daf00b8c182d56a55aaac7dafdbaf4f9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling signal-hook v0.3.6
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking async-tls v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `async_std::sync::channel`
[INFO] [stdout]  --> tests/test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::sync::channel;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^ no `channel` in `sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-tls`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4daad152f195007a3d5638a849f39041daf00b8c182d56a55aaac7dafdbaf4f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4daad152f195007a3d5638a849f39041daf00b8c182d56a55aaac7dafdbaf4f9", kill_on_drop: false }`
[INFO] [stdout] 4daad152f195007a3d5638a849f39041daf00b8c182d56a55aaac7dafdbaf4f9