[INFO] fetching crate simple-message-channels 0.2.0... [INFO] testing simple-message-channels-0.2.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296 [INFO] extracting crate simple-message-channels 0.2.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate simple-message-channels 0.2.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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-7/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded broadcaster v0.2.6 [INFO] [stderr] Downloaded async-macros v2.0.0 [INFO] [stderr] Downloaded mio v0.6.20 [INFO] [stderr] Downloaded varinteger v1.0.6 [INFO] [stderr] Downloaded async-std v1.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b625a97442d30dc7765f94c32088c14d6b3e959bacbd29161eadf045175c1f31 [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" "b625a97442d30dc7765f94c32088c14d6b3e959bacbd29161eadf045175c1f31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b625a97442d30dc7765f94c32088c14d6b3e959bacbd29161eadf045175c1f31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b625a97442d30dc7765f94c32088c14d6b3e959bacbd29161eadf045175c1f31", kill_on_drop: false }` [INFO] [stdout] b625a97442d30dc7765f94c32088c14d6b3e959bacbd29161eadf045175c1f31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 75fd239456c5d86ac55904e3bed92c542aa43bf2c878fecc4c5b96c33a78fe8e [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" "75fd239456c5d86ac55904e3bed92c542aa43bf2c878fecc4c5b96c33a78fe8e", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling futures-core v0.3.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-sink v0.3.1 [INFO] [stderr] Compiling futures-io 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 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 v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling lock_api v0.3.2 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling async-macros v2.0.0 [INFO] [stderr] Compiling futures-channel v0.3.1 [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 semver v0.9.0 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling async-task v1.0.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-channel v0.4.0 [INFO] [stderr] Compiling kv-log-macro v1.0.4 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.11.1 [INFO] [stderr] Compiling mio v0.6.20 [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 38.36s [INFO] running `Command { std: "docker" "inspect" "75fd239456c5d86ac55904e3bed92c542aa43bf2c878fecc4c5b96c33a78fe8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75fd239456c5d86ac55904e3bed92c542aa43bf2c878fecc4c5b96c33a78fe8e", kill_on_drop: false }` [INFO] [stdout] 75fd239456c5d86ac55904e3bed92c542aa43bf2c878fecc4c5b96c33a78fe8e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35782c7fb22ae49dd29f267d8153e9e840719342d54bc41b02d98048ab8f14a0 [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" "35782c7fb22ae49dd29f267d8153e9e840719342d54bc41b02d98048ab8f14a0", 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 5.63s [INFO] running `Command { std: "docker" "inspect" "35782c7fb22ae49dd29f267d8153e9e840719342d54bc41b02d98048ab8f14a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35782c7fb22ae49dd29f267d8153e9e840719342d54bc41b02d98048ab8f14a0", kill_on_drop: false }` [INFO] [stdout] 35782c7fb22ae49dd29f267d8153e9e840719342d54bc41b02d98048ab8f14a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 253d5d6fd0d64585ee6033b85a25482a06efb7072ff4fc96e63f51cb9c52f5db [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" "253d5d6fd0d64585ee6033b85a25482a06efb7072ff4fc96e63f51cb9c52f5db", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/simple_message_channels-002422ec9c5e1053 [INFO] [stdout] [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] [stderr] Doc-tests simple-message-channels [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" "253d5d6fd0d64585ee6033b85a25482a06efb7072ff4fc96e63f51cb9c52f5db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "253d5d6fd0d64585ee6033b85a25482a06efb7072ff4fc96e63f51cb9c52f5db", kill_on_drop: false }` [INFO] [stdout] 253d5d6fd0d64585ee6033b85a25482a06efb7072ff4fc96e63f51cb9c52f5db