[INFO] fetching crate simple-message-channels 0.2.0... [INFO] testing simple-message-channels-0.2.0 against 1.49.0 for beta-1.50-1 [INFO] extracting crate simple-message-channels 0.2.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate simple-message-channels 0.2.0 on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-0/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eb5ac26a6cbc660a69dbe6ceeaa34e51e146b5b8348047240cc3a52984811506 [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" "eb5ac26a6cbc660a69dbe6ceeaa34e51e146b5b8348047240cc3a52984811506", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb5ac26a6cbc660a69dbe6ceeaa34e51e146b5b8348047240cc3a52984811506", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb5ac26a6cbc660a69dbe6ceeaa34e51e146b5b8348047240cc3a52984811506", kill_on_drop: false }` [INFO] [stdout] eb5ac26a6cbc660a69dbe6ceeaa34e51e146b5b8348047240cc3a52984811506 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8eef564d6a01acd68b8cd8ba937dcd3740ff06ecb275c0980b8d18c14b0e087b [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" "8eef564d6a01acd68b8cd8ba937dcd3740ff06ecb275c0980b8d18c14b0e087b", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling futures-core v0.3.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-io v0.3.1 [INFO] [stderr] Compiling futures-sink v0.3.1 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-task v0.3.1 [INFO] [stderr] Compiling pin-project-lite v0.1.1 [INFO] [stderr] Compiling futures-timer v2.0.2 [INFO] [stderr] Compiling varinteger v1.0.6 [INFO] [stderr] Compiling lock_api v0.3.2 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling futures-channel v0.3.1 [INFO] [stderr] Compiling async-macros v2.0.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-util-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 31.21s [INFO] running `Command { std: "docker" "inspect" "8eef564d6a01acd68b8cd8ba937dcd3740ff06ecb275c0980b8d18c14b0e087b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8eef564d6a01acd68b8cd8ba937dcd3740ff06ecb275c0980b8d18c14b0e087b", kill_on_drop: false }` [INFO] [stdout] 8eef564d6a01acd68b8cd8ba937dcd3740ff06ecb275c0980b8d18c14b0e087b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a379c8f1ba5dfb9cf43048324e60338a04f9b13c8f9ad427242dba8a85912c84 [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" "a379c8f1ba5dfb9cf43048324e60338a04f9b13c8f9ad427242dba8a85912c84", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.19s [INFO] running `Command { std: "docker" "inspect" "a379c8f1ba5dfb9cf43048324e60338a04f9b13c8f9ad427242dba8a85912c84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a379c8f1ba5dfb9cf43048324e60338a04f9b13c8f9ad427242dba8a85912c84", kill_on_drop: false }` [INFO] [stdout] a379c8f1ba5dfb9cf43048324e60338a04f9b13c8f9ad427242dba8a85912c84 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3c4bab9f6aea1a98ce5a8ed895ac504b8319432db3de8c520ed40a0536bd929b [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" "3c4bab9f6aea1a98ce5a8ed895ac504b8319432db3de8c520ed40a0536bd929b", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.13s [INFO] [stdout] running 0 tests [INFO] [stderr] Running /opt/rustwide/target/debug/deps/simple_message_channels-b7a5e8a6535c811a [INFO] [stdout] [INFO] [stderr] Doc-tests simple-message-channels [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" "3c4bab9f6aea1a98ce5a8ed895ac504b8319432db3de8c520ed40a0536bd929b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c4bab9f6aea1a98ce5a8ed895ac504b8319432db3de8c520ed40a0536bd929b", kill_on_drop: false }` [INFO] [stdout] 3c4bab9f6aea1a98ce5a8ed895ac504b8319432db3de8c520ed40a0536bd929b