[INFO] fetching crate tokio-async-io 0.1.0...
[INFO] testing tokio-async-io-0.1.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate tokio-async-io 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate tokio-async-io 0.1.0
[INFO] finished tweaking crates.io crate tokio-async-io 0.1.0
[INFO] tweaked toml for crates.io crate tokio-async-io 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-async-io 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-async-io 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.2.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.15
[INFO] [stderr]   Downloaded futures-macro v0.3.5
[INFO] [stderr]   Downloaded futures-sink v0.3.5
[INFO] [stderr]   Downloaded futures-task v0.3.5
[INFO] [stderr]   Downloaded futures-core v0.3.5
[INFO] [stderr]   Downloaded pin-project-lite v0.1.5
[INFO] [stderr]   Downloaded net2 v0.2.34
[INFO] [stderr]   Downloaded pin-project-internal v0.4.17
[INFO] [stderr]   Downloaded once_cell v1.4.0
[INFO] [stderr]   Downloaded futures-executor v0.3.5
[INFO] [stderr]   Downloaded futures v0.3.5
[INFO] [stderr]   Downloaded bytes v0.5.4
[INFO] [stderr]   Downloaded pin-project v0.4.17
[INFO] [stderr]   Downloaded mio v0.6.22
[INFO] [stderr]   Downloaded futures-util v0.3.5
[INFO] [stderr]   Downloaded syn v1.0.23
[INFO] [stderr]   Downloaded tokio v0.2.21
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed
[INFO] running `Command { std: "docker" "start" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.15
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling tokio-async-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.97s
[INFO] running `Command { std: "docker" "inspect" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-async-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `zmq`
[INFO] [stdout]  --> examples/zmq.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use zmq::{Context, PollEvents, Socket, SocketType, DONTWAIT, POLLIN, POLLOUT};
[INFO] [stdout]   |     ^^^ use of unresolved module or unlinked crate `zmq`
[INFO] [stdout]   |
[INFO] [stdout] help: to make use of source file examples/zmq.rs, use `mod zmq` in this file to declare the module
[INFO] [stdout]   |
[INFO] [stdout] 1 + mod zmq;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method call on a diverging inference variable
[INFO] [stdout]   --> examples/zmq.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |         println!("{}", msg.as_str().unwrap());
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider providing a type annotation
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #156047 <https://github.com/rust-lang/rust/issues/156047>
[INFO] [stdout]    = note: `#[warn(method_call_on_diverging_infer_var)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_str` found for type `!` in the current scope
[INFO] [stdout]   --> examples/zmq.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |         println!("{}", msg.as_str().unwrap());
[INFO] [stdout]    |                            ^^^^^^ method not found in `!`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method call on a diverging inference variable
[INFO] [stdout]   --> examples/zmq.rs:57:50
[INFO] [stdout]    |
[INFO] [stdout] 57 |         with_write(&server, |sock| sock.send(msg.deref(), DONTWAIT)).await?;
[INFO] [stdout]    |                                                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider providing a type annotation
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #156047 <https://github.com/rust-lang/rust/issues/156047>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `deref` found for type `!` in the current scope
[INFO] [stdout]   --> examples/zmq.rs:57:50
[INFO] [stdout]    |
[INFO] [stdout] 57 |         with_write(&server, |sock| sock.send(msg.deref(), DONTWAIT)).await?;
[INFO] [stdout]    |                                                  ^^^^^ method not found in `!`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `zmq` in this scope
[INFO] [stdout]   --> examples/zmq.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 |     mut f: impl FnMut(&Socket) -> zmq::Result<T>,
[INFO] [stdout]    |                                   ^^^ use of unresolved module or unlinked crate `zmq`
[INFO] [stdout]    |
[INFO] [stdout] help: to make use of source file examples/zmq.rs, use `mod zmq` in this file to declare the module
[INFO] [stdout]    |
[INFO] [stdout]  1 + mod zmq;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `zmq` in this scope
[INFO] [stdout]   --> examples/zmq.rs:27:31
[INFO] [stdout]    |
[INFO] [stdout] 27 |     f: impl FnMut(&Socket) -> zmq::Result<T>,
[INFO] [stdout]    |                               ^^^ use of unresolved module or unlinked crate `zmq`
[INFO] [stdout]    |
[INFO] [stdout] help: to make use of source file examples/zmq.rs, use `mod zmq` in this file to declare the module
[INFO] [stdout]    |
[INFO] [stdout]  1 + mod zmq;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `zmq` in this scope
[INFO] [stdout]   --> examples/zmq.rs:34:31
[INFO] [stdout]    |
[INFO] [stdout] 34 |     f: impl FnMut(&Socket) -> zmq::Result<T>,
[INFO] [stdout]    |                               ^^^ use of unresolved module or unlinked crate `zmq`
[INFO] [stdout]    |
[INFO] [stdout] help: to make use of source file examples/zmq.rs, use `mod zmq` in this file to declare the module
[INFO] [stdout]    |
[INFO] [stdout]  1 + mod zmq;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-async-io` (example "zmq") due to 6 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed", kill_on_drop: false }`
[INFO] [stdout] 3665d05a63b0038c9c0454595f26f801510ea8eddef8aa4051063c11c534a8ed
