[INFO] updating cached repository https://github.com/yuu/rust-future-example [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c5704fd681f1180c6d45ceaf720eccd7d1e0247b [INFO] testing yuu/rust-future-example against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuu%2Frust-future-example" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yuu/rust-future-example on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/yuu/rust-future-example [INFO] finished tweaking git repo https://github.com/yuu/rust-future-example [INFO] tweaked toml for git repo https://github.com/yuu/rust-future-example written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/yuu/rust-future-example already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stdout] eec2510ab94941b907f1c296d23774f2d17363f3f4fb725683b77f926920d5bc [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "eec2510ab94941b907f1c296d23774f2d17363f3f4fb725683b77f926920d5bc"` [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling log v0.4.7 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling async-util v0.1.0 (https://github.com/tokio-rs/async#e1b3ba3d) [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling memoffset v0.2.1 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.40 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling arc-waker v0.1.0 (https://github.com/tokio-rs/async#e1b3ba3d) [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling crossbeam-utils v0.6.5 [INFO] [stderr] Compiling crossbeam-utils v0.6.5 (https://github.com/stjepang/crossbeam?branch=raw-parker#e2a7760f) [INFO] [stderr] Compiling tracing-core v0.1.2 [INFO] [stderr] Compiling lock_api v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling tokio-sync v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling crossbeam-channel v0.3.8 [INFO] [stderr] Compiling tokio-executor v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-epoch v0.7.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling tokio-timer v0.3.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling tokio-current-thread v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling parking_lot_core v0.6.1 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling tokio-io v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-threadpool v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-codec v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-fs v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-reactor v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-uds v0.3.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-tcp v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-udp v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio-macros v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling tokio v0.2.0 (https://github.com/tokio-rs/tokio#e88d10a3) [INFO] [stderr] Compiling future-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `AsyncWriteExt` [INFO] [stderr] --> src/main.rs:4:31 [INFO] [stderr] | [INFO] [stderr] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | stream.read_exact(&mut buf).await; [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] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 06s [INFO] running `"docker" "inspect" "eec2510ab94941b907f1c296d23774f2d17363f3f4fb725683b77f926920d5bc"` [INFO] running `"docker" "rm" "-f" "eec2510ab94941b907f1c296d23774f2d17363f3f4fb725683b77f926920d5bc"` [INFO] [stdout] eec2510ab94941b907f1c296d23774f2d17363f3f4fb725683b77f926920d5bc [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2fdbb88d57a8bbbfb7f5bb11267a504deddc60824fa2686c7ece015900e41dc2 [INFO] running `"docker" "start" "-a" "2fdbb88d57a8bbbfb7f5bb11267a504deddc60824fa2686c7ece015900e41dc2"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling future-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `AsyncWriteExt` [INFO] [stderr] --> src/main.rs:4:31 [INFO] [stderr] | [INFO] [stderr] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | stream.read_exact(&mut buf).await; [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] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.49s [INFO] running `"docker" "inspect" "2fdbb88d57a8bbbfb7f5bb11267a504deddc60824fa2686c7ece015900e41dc2"` [INFO] running `"docker" "rm" "-f" "2fdbb88d57a8bbbfb7f5bb11267a504deddc60824fa2686c7ece015900e41dc2"` [INFO] [stdout] 2fdbb88d57a8bbbfb7f5bb11267a504deddc60824fa2686c7ece015900e41dc2 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f4b7556f4e73d38edef6c3921422cf2fd24903578aff86d9d8d03e14bf2ba3a0 [INFO] running `"docker" "start" "-a" "f4b7556f4e73d38edef6c3921422cf2fd24903578aff86d9d8d03e14bf2ba3a0"` [INFO] [stderr] warning: unused import: `AsyncWriteExt` [INFO] [stderr] --> src/main.rs:4:31 [INFO] [stderr] | [INFO] [stderr] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | stream.read_exact(&mut buf).await; [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] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.18s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/future_example-052c917dbf428dc4 [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] running `"docker" "inspect" "f4b7556f4e73d38edef6c3921422cf2fd24903578aff86d9d8d03e14bf2ba3a0"` [INFO] running `"docker" "rm" "-f" "f4b7556f4e73d38edef6c3921422cf2fd24903578aff86d9d8d03e14bf2ba3a0"` [INFO] [stdout] f4b7556f4e73d38edef6c3921422cf2fd24903578aff86d9d8d03e14bf2ba3a0