[INFO] fetching crate doh-dns 0.2.0...
[INFO] checking doh-dns-0.2.0 against beta for pr-78714
[INFO] extracting crate doh-dns 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate doh-dns 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doh-dns 0.2.0
[INFO] finished tweaking crates.io crate doh-dns 0.2.0
[INFO] tweaked toml for crates.io crate doh-dns 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] a6ebae7004a30d81f89091f3713d9c56a6a4952eb6689a76e823296ebeaf86d4
[INFO] running `Command { std: "docker" "start" "-a" "a6ebae7004a30d81f89091f3713d9c56a6a4952eb6689a76e823296ebeaf86d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6ebae7004a30d81f89091f3713d9c56a6a4952eb6689a76e823296ebeaf86d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ebae7004a30d81f89091f3713d9c56a6a4952eb6689a76e823296ebeaf86d4", kill_on_drop: false }`
[INFO] [stdout] a6ebae7004a30d81f89091f3713d9c56a6a4952eb6689a76e823296ebeaf86d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9da71d5c486aab70e700a7c504fc6085927a5d8092fa993b614dea3503d7f34f
[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" "9da71d5c486aab70e700a7c504fc6085927a5d8092fa993b614dea3503d7f34f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking doh-dns v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `hyper::client::Builder::keep_alive`: name is confusing, to disable the connection pool, call pool_max_idle_per_host(0)
[INFO] [stdout]   --> src/client.rs:45:39
[INFO] [stdout]    |
[INFO] [stdout] 45 |             client: Client::builder().keep_alive(true).build(connector),
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `doh-dns`
[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] [stdout] warning: use of deprecated associated function `hyper::client::Builder::keep_alive`: name is confusing, to disable the connection pool, call pool_max_idle_per_host(0)
[INFO] [stdout]   --> src/client.rs:45:39
[INFO] [stdout]    |
[INFO] [stdout] 45 |             client: Client::builder().keep_alive(true).build(connector),
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9da71d5c486aab70e700a7c504fc6085927a5d8092fa993b614dea3503d7f34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da71d5c486aab70e700a7c504fc6085927a5d8092fa993b614dea3503d7f34f", kill_on_drop: false }`
[INFO] [stdout] 9da71d5c486aab70e700a7c504fc6085927a5d8092fa993b614dea3503d7f34f