[INFO] fetching crate async-tls 0.11.0...
[INFO] checking async-tls-0.11.0 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate async-tls 0.11.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async-tls 0.11.0 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ffd47b6f2e1c3d33d7cd74a6e2bb72aa5c9303c48f8e130a0538067ca485b2a
[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" "2ffd47b6f2e1c3d33d7cd74a6e2bb72aa5c9303c48f8e130a0538067ca485b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ffd47b6f2e1c3d33d7cd74a6e2bb72aa5c9303c48f8e130a0538067ca485b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ffd47b6f2e1c3d33d7cd74a6e2bb72aa5c9303c48f8e130a0538067ca485b2a", kill_on_drop: false }`
[INFO] [stdout] 2ffd47b6f2e1c3d33d7cd74a6e2bb72aa5c9303c48f8e130a0538067ca485b2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc5678b1daef1e81f22a78fb6682091b6b7e6c71c083e1035eb47d0f135e091a
[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" "cc5678b1daef1e81f22a78fb6682091b6b7e6c71c083e1035eb47d0f135e091a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking async-tls v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.14
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cc5678b1daef1e81f22a78fb6682091b6b7e6c71c083e1035eb47d0f135e091a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc5678b1daef1e81f22a78fb6682091b6b7e6c71c083e1035eb47d0f135e091a", kill_on_drop: false }`
[INFO] [stdout] cc5678b1daef1e81f22a78fb6682091b6b7e6c71c083e1035eb47d0f135e091a