[INFO] fetching crate simple-message-channels 0.2.0...
[INFO] testing simple-message-channels-0.2.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate simple-message-channels 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate simple-message-channels 0.2.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/message.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let _ = &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "8ed97c22fac6b91d5898d2354cc877e7a97f9f8fa14189c41751621aa2fb7323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ed97c22fac6b91d5898d2354cc877e7a97f9f8fa14189c41751621aa2fb7323", kill_on_drop: false }`
[INFO] [stdout] 8ed97c22fac6b91d5898d2354cc877e7a97f9f8fa14189c41751621aa2fb7323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b550e3d567841c85d19802dd401deb8fd0672f7730d6958e6aa247799c2525a1
[INFO] running `Command { std: "docker" "start" "-a" "b550e3d567841c85d19802dd401deb8fd0672f7730d6958e6aa247799c2525a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/message.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let _ = &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> examples/tcp.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 |             _ => panic!(usage()),
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `()`
[INFO] [stdout]    |
[INFO] [stdout] 46 |             _ => panic!("{:?}", usage()),
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 46 |             _ => std::panic::panic_any(usage()),
[INFO] [stdout]    |                  ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/message.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let _ = &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "b550e3d567841c85d19802dd401deb8fd0672f7730d6958e6aa247799c2525a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b550e3d567841c85d19802dd401deb8fd0672f7730d6958e6aa247799c2525a1", kill_on_drop: false }`
[INFO] [stdout] b550e3d567841c85d19802dd401deb8fd0672f7730d6958e6aa247799c2525a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f1606d59443b1ed821a68a2369786ada66b137b95a589c6c13435e20d9b1dbcb
[INFO] running `Command { std: "docker" "start" "-a" "f1606d59443b1ed821a68a2369786ada66b137b95a589c6c13435e20d9b1dbcb", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/message.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let _ = &mut buf[end..].copy_from_slice(&msg.message);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-message-channels` (lib) generated 1 warning (run `cargo fix --lib -p simple-message-channels` to apply 1 suggestion)
[INFO] [stderr] warning: `simple-message-channels` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> examples/tcp.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |             _ => panic!(usage()),
[INFO] [stderr]    |                         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{:?}" format string to use the `Debug` implementation of `()`
[INFO] [stderr]    |
[INFO] [stderr] 46 |             _ => panic!("{:?}", usage()),
[INFO] [stderr]    |                         +++++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 46 |             _ => std::panic::panic_any(usage()),
[INFO] [stderr]    |                  ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-message-channels` (example "tcp") generated 1 warning (run `cargo fix --example "tcp"` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_message_channels-295bb199893dde2d)
[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; finished in 0.00s
[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[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:19:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_17_0() {
[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:21:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_17_0() {
[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[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]   |             ^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             use of undeclared crate or module `io`
[INFO] [stdout]   |             help: a builtin type with a similar name exists: `i8`
[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] 2 | use async_std::stream::stream::StreamExt;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures_util::stream::StreamExt;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures_util::stream::stream::StreamExt;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::Iterator;
[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 `FromResidual`)
[INFO] [stdout]  --> src/reader.rs:22:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_17_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 |     let msg = msg?;
[INFO] [stdout]   |                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<_>` is not implemented for `()`
[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; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f1606d59443b1ed821a68a2369786ada66b137b95a589c6c13435e20d9b1dbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1606d59443b1ed821a68a2369786ada66b137b95a589c6c13435e20d9b1dbcb", kill_on_drop: false }`
[INFO] [stdout] f1606d59443b1ed821a68a2369786ada66b137b95a589c6c13435e20d9b1dbcb
