[INFO] updating cached repository laopo001/hello_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/laopo001/hello_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/laopo001/hello_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/laopo001/hello_rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/laopo001/hello_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/laopo001/hello_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/laopo001/hello_rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/laopo001/hello_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b09992161269335840609a50692ae5bf716f359f [INFO] sha for GitHub repo laopo001/hello_rust: b09992161269335840609a50692ae5bf716f359f [INFO] validating manifest of laopo001/hello_rust on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of laopo001/hello_rust on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing laopo001/hello_rust [INFO] finished frobbing laopo001/hello_rust [INFO] frobbed toml for laopo001/hello_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/laopo001/hello_rust/Cargo.toml [INFO] started frobbing laopo001/hello_rust [INFO] finished frobbing laopo001/hello_rust [INFO] frobbed toml for laopo001/hello_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/laopo001/hello_rust/Cargo.toml [INFO] crate laopo001/hello_rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing laopo001/hello_rust against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/laopo001/hello_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 181c6ad17f8f042cc194d93589234ac9b0d151fba8933fd55ed2e64bd9ab3456 [INFO] running `"docker" "start" "-a" "181c6ad17f8f042cc194d93589234ac9b0d151fba8933fd55ed2e64bd9ab3456"` [INFO] [stderr] Compiling futures v0.1.27 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling tokio-trace-core v0.2.0 [INFO] [stderr] Compiling num_cpus v1.10.0 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling http v0.1.17 [INFO] [stderr] Compiling tokio-sync v0.1.5 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling tokio-executor v0.1.7 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling want v0.0.6 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling tokio-threadpool v0.1.14 [INFO] [stderr] Compiling tokio-current-thread v0.1.6 [INFO] [stderr] Compiling tokio-timer v0.2.11 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling h2 v0.1.21 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling tokio-fs v0.1.6 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio v0.1.21 [INFO] [stderr] Compiling hyper v0.12.29 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling hello_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:13:17 [INFO] [stderr] | [INFO] [stderr] 13 | type Task = Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib2.rs:52:16 [INFO] [stderr] | [INFO] [stderr] 52 | type Job = Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sender` [INFO] [stderr] --> src/lib.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | let (sender, receiver) = mpsc::channel::(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_sender` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `receiver` [INFO] [stderr] --> src/lib.rs:46:20 [INFO] [stderr] | [INFO] [stderr] 46 | fn new(id: usize, receiver: Arc>>) -> Self { [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_receiver` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib2.rs:36:7 [INFO] [stderr] | [INFO] [stderr] 36 | for i in 0..s { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NewJob` [INFO] [stderr] --> src/lib.rs:16:2 [INFO] [stderr] | [INFO] [stderr] 16 | NewJob(Task), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Terminate` [INFO] [stderr] --> src/lib.rs:17:2 [INFO] [stderr] | [INFO] [stderr] 17 | Terminate, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `size` [INFO] [stderr] --> src/lib.rs:22:2 [INFO] [stderr] | [INFO] [stderr] 22 | size: usize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `workers` [INFO] [stderr] --> src/lib.rs:23:2 [INFO] [stderr] | [INFO] [stderr] 23 | workers: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `id` [INFO] [stderr] --> src/lib.rs:42:2 [INFO] [stderr] | [INFO] [stderr] 42 | id: usize, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `id` [INFO] [stderr] --> src/lib2.rs:55:2 [INFO] [stderr] | [INFO] [stderr] 55 | id: usize, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib2.rs:68:6 [INFO] [stderr] | [INFO] [stderr] 68 | sender.lock().unwrap().send(()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] error: incorrect use of `await` [INFO] [stderr] --> src/bin/main2.rs:17:13 [INFO] [stderr] | [INFO] [stderr] 17 | let res = await!(client.get(url).compat())?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `client.get(url).compat().await` [INFO] [stderr] [INFO] [stderr] error: incorrect use of `await` [INFO] [stderr] --> src/bin/main2.rs:24:31 [INFO] [stderr] | [INFO] [stderr] 24 | while let Some(Ok(chunk)) = await!(body.next()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `body.next().await` [INFO] [stderr] [INFO] [stderr] error: incorrect use of `await` [INFO] [stderr] --> src/bin/main2.rs:25:4 [INFO] [stderr] | [INFO] [stderr] 25 | await!(stdout.write_all(&chunk))?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `stdout.write_all(&chunk).await` [INFO] [stderr] [INFO] [stderr] error[E0557]: feature has been removed [INFO] [stderr] --> src/bin/main2.rs:1:25 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: subsumed by `.await` syntax [INFO] [stderr] --> src/bin/main2.rs:1:25 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Arc`, `Mutex` [INFO] [stderr] --> src/bin/main3.rs:2:17 [INFO] [stderr] | [INFO] [stderr] 2 | use std::sync::{Arc, mpsc, Mutex}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/bin/main4.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `receiver` [INFO] [stderr] --> src/bin/main4.rs:8:10 [INFO] [stderr] | [INFO] [stderr] 8 | let (s, receiver) = mpsc::channel::(); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_receiver` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sender` [INFO] [stderr] --> src/bin/main4.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | let sender = s.clone(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_sender` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/main4.rs:16:7 [INFO] [stderr] | [INFO] [stderr] 16 | let mut c_v = Arc::clone(&vec); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/main4.rs:22:4 [INFO] [stderr] | [INFO] [stderr] 22 | sender.send(i.to_string()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/bin/main2.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await, await_macro, futures_api)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 5 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0554, E0557. [INFO] [stderr] For more information about an error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `hello_rust`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "181c6ad17f8f042cc194d93589234ac9b0d151fba8933fd55ed2e64bd9ab3456"` [INFO] running `"docker" "rm" "-f" "181c6ad17f8f042cc194d93589234ac9b0d151fba8933fd55ed2e64bd9ab3456"` [INFO] [stdout] 181c6ad17f8f042cc194d93589234ac9b0d151fba8933fd55ed2e64bd9ab3456