[INFO] fetching crate tokio-async-io 0.1.0...
[INFO] testing tokio-async-io-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate tokio-async-io 0.1.0 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-async-io 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.2.5
[INFO] [stderr]   Downloaded net2 v0.2.34
[INFO] [stderr]   Downloaded pin-project-lite v0.1.5
[INFO] [stderr]   Downloaded futures-channel v0.3.5
[INFO] [stderr]   Downloaded futures-executor v0.3.5
[INFO] [stderr]   Downloaded pin-project v0.4.17
[INFO] [stderr]   Downloaded futures-core v0.3.5
[INFO] [stderr]   Downloaded syn v1.0.23
[INFO] [stderr]   Downloaded futures-io v0.3.5
[INFO] [stderr]   Downloaded once_cell v1.4.0
[INFO] [stderr]   Downloaded futures-task v0.3.5
[INFO] [stderr]   Downloaded pin-project-internal v0.4.17
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.15
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.4
[INFO] [stderr]   Downloaded futures-macro v0.3.5
[INFO] [stderr]   Downloaded futures-util v0.3.5
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] [stderr]   Downloaded tokio v0.2.21
[INFO] [stderr]   Downloaded futures-sink v0.3.5
[INFO] [stderr]   Downloaded futures v0.3.5
[INFO] [stderr]   Downloaded quote v1.0.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e2f678ff31686d619ea13ec8685c2832b1431a1aafc7b143fad91d5e04cf359
[INFO] running `Command { std: "docker" "start" "-a" "0e2f678ff31686d619ea13ec8685c2832b1431a1aafc7b143fad91d5e04cf359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e2f678ff31686d619ea13ec8685c2832b1431a1aafc7b143fad91d5e04cf359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2f678ff31686d619ea13ec8685c2832b1431a1aafc7b143fad91d5e04cf359", kill_on_drop: false }`
[INFO] [stdout] 0e2f678ff31686d619ea13ec8685c2832b1431a1aafc7b143fad91d5e04cf359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6717e7911bcb7fb8b712d56990eb22a897dbc60e1599f1b6ccd2fe9dee71edd7
[INFO] running `Command { std: "docker" "start" "-a" "6717e7911bcb7fb8b712d56990eb22a897dbc60e1599f1b6ccd2fe9dee71edd7", 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-nested v0.1.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[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 proc-macro-hack v0.5.15
[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-task v0.3.5
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.6
[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 11.86s
[INFO] running `Command { std: "docker" "inspect" "6717e7911bcb7fb8b712d56990eb22a897dbc60e1599f1b6ccd2fe9dee71edd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6717e7911bcb7fb8b712d56990eb22a897dbc60e1599f1b6ccd2fe9dee71edd7", kill_on_drop: false }`
[INFO] [stdout] 6717e7911bcb7fb8b712d56990eb22a897dbc60e1599f1b6ccd2fe9dee71edd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fce3b012f2c6dd60d040ca3800152e7f338734d65d5251434f54230ab8a0012c
[INFO] running `Command { std: "docker" "start" "-a" "fce3b012f2c6dd60d040ca3800152e7f338734d65d5251434f54230ab8a0012c", 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] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `zmq`
[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]: failed to resolve: use of unresolved module or unlinked crate `zmq`
[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]: failed to resolve: use of unresolved module or unlinked crate `zmq`
[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.
[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 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fce3b012f2c6dd60d040ca3800152e7f338734d65d5251434f54230ab8a0012c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce3b012f2c6dd60d040ca3800152e7f338734d65d5251434f54230ab8a0012c", kill_on_drop: false }`
[INFO] [stdout] fce3b012f2c6dd60d040ca3800152e7f338734d65d5251434f54230ab8a0012c