[INFO] fetching crate simple-message-channels 0.2.0...
[INFO] testing simple-message-channels-0.2.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate simple-message-channels 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate simple-message-channels 0.2.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-message-channels 0.2.0
[INFO] finished tweaking crates.io crate simple-message-channels 0.2.0
[INFO] tweaked toml for crates.io crate simple-message-channels 0.2.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate simple-message-channels 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded varinteger v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e4c50dc7ad07e7b8f5efa832340280e43ed8e9a68ed256a55be6d8345c29a81
[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" "4e4c50dc7ad07e7b8f5efa832340280e43ed8e9a68ed256a55be6d8345c29a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e4c50dc7ad07e7b8f5efa832340280e43ed8e9a68ed256a55be6d8345c29a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e4c50dc7ad07e7b8f5efa832340280e43ed8e9a68ed256a55be6d8345c29a81", kill_on_drop: false }`
[INFO] [stdout] 4e4c50dc7ad07e7b8f5efa832340280e43ed8e9a68ed256a55be6d8345c29a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a2cd61899c39189508fe00e52ebfeda524922492b214f259f3e9025427dee60
[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" "5a2cd61899c39189508fe00e52ebfeda524922492b214f259f3e9025427dee60", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling once_cell v1.2.0
[INFO] [stderr]    Compiling varinteger v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling async-macros v2.0.0
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling async-task v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling mio v0.6.20
[INFO] [stderr]    Compiling kv-log-macro v1.0.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling broadcaster v0.2.6
[INFO] [stderr]    Compiling async-std v1.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.1
[INFO] [stderr]    Compiling futures v0.3.1
[INFO] [stderr]    Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.86s
[INFO] running `Command { std: "docker" "inspect" "5a2cd61899c39189508fe00e52ebfeda524922492b214f259f3e9025427dee60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2cd61899c39189508fe00e52ebfeda524922492b214f259f3e9025427dee60", kill_on_drop: false }`
[INFO] [stdout] 5a2cd61899c39189508fe00e52ebfeda524922492b214f259f3e9025427dee60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1738fe994b6ad411687bc97a4155ee4d8d7755a4122b25866e805c19c26ff284
[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" "1738fe994b6ad411687bc97a4155ee4d8d7755a4122b25866e805c19c26ff284", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.09s
[INFO] running `Command { std: "docker" "inspect" "1738fe994b6ad411687bc97a4155ee4d8d7755a4122b25866e805c19c26ff284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1738fe994b6ad411687bc97a4155ee4d8d7755a4122b25866e805c19c26ff284", kill_on_drop: false }`
[INFO] [stdout] 1738fe994b6ad411687bc97a4155ee4d8d7755a4122b25866e805c19c26ff284
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9bb7d8eefac3ccaf86d09fb65973d162c9065e606b073b305ba62d8d9c79aaa4
[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" "9bb7d8eefac3ccaf86d09fb65973d162c9065e606b073b305ba62d8d9c79aaa4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simple_message_channels-4bc9fe5e8a242d71
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple-message-channels
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/reader.rs - reader::Reader (line 17) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/reader.rs - reader::Reader (line 17) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `io`
[INFO] [stdout]  --> src/reader.rs:19:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | let stdin = io::stdin().lock().await;
[INFO] [stdout]   |             ^^ use of undeclared crate or module `io`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `text` in this scope
[INFO] [stdout]  --> src/reader.rs:23:71
[INFO] [stdout]   |
[INFO] [stdout] 9 |     println!("Received: ch {} typ {} msg {:?}", msg.channel, msg.typ, text);
[INFO] [stdout]   |                                                                       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/reader.rs:19:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ---- this is not `async`
[INFO] [stdout] 4 | use simple_message_channels::Reader;
[INFO] [stdout] 5 | let stdin = io::stdin().lock().await;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/reader.rs:21:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ---- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 7 | while let Some(msg) = reader.next().await {
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `Reader<_>` in the current scope
[INFO] [stdout]  --> src/reader.rs:21:30
[INFO] [stdout]   |
[INFO] [stdout] 7 | while let Some(msg) = reader.next().await {
[INFO] [stdout]   |                              ^^^^ method not found in `Reader<_>`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following traits are implemented but not in scope; perhaps add a `use` for one of them:
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::Iterator;
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::pattern::Searcher;
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::stream::stream::StreamExt;
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures_util::stream::StreamExt;
[INFO] [stdout]   |
[INFO] [stdout]     and 1 other candidate
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
[INFO] [stdout]   --> src/reader.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | use simple_message_channels::Reader;
[INFO] [stdout] 5  | | let stdin = io::stdin().lock().await;
[INFO] [stdout] 6  | | let mut reader = Reader::new(stdin);
[INFO] [stdout] 7  | | while let Some(msg) = reader.next().await {
[INFO] [stdout] 8  | |     let msg = msg?;
[INFO] [stdout]    | |               ^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 9  | |     println!("Received: ch {} typ {} msg {:?}", msg.channel, msg.typ, text);
[INFO] [stdout] 10 | | }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433, E0599, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/reader.rs - reader::Reader (line 17)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "9bb7d8eefac3ccaf86d09fb65973d162c9065e606b073b305ba62d8d9c79aaa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb7d8eefac3ccaf86d09fb65973d162c9065e606b073b305ba62d8d9c79aaa4", kill_on_drop: false }`
[INFO] [stdout] 9bb7d8eefac3ccaf86d09fb65973d162c9065e606b073b305ba62d8d9c79aaa4
