[INFO] updating cached repository alexxuyang/tokio-examples [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/alexxuyang/tokio-examples [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/alexxuyang/tokio-examples" "work/ex/beta-1.38-1/sources/1.37.0/gh/alexxuyang/tokio-examples"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alexxuyang/tokio-examples'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/alexxuyang/tokio-examples" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexxuyang/tokio-examples"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexxuyang/tokio-examples'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 38774c6c9eea4dbdc17b6877adb17fa7278e3405 [INFO] sha for GitHub repo alexxuyang/tokio-examples: 38774c6c9eea4dbdc17b6877adb17fa7278e3405 [INFO] validating manifest of alexxuyang/tokio-examples 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 alexxuyang/tokio-examples 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 alexxuyang/tokio-examples [INFO] finished frobbing alexxuyang/tokio-examples [INFO] frobbed toml for alexxuyang/tokio-examples written to work/ex/beta-1.38-1/sources/1.37.0/gh/alexxuyang/tokio-examples/Cargo.toml [INFO] started frobbing alexxuyang/tokio-examples [INFO] finished frobbing alexxuyang/tokio-examples [INFO] frobbed toml for alexxuyang/tokio-examples written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexxuyang/tokio-examples/Cargo.toml [INFO] crate alexxuyang/tokio-examples 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 alexxuyang/tokio-examples 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-6/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/alexxuyang/tokio-examples:/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] d9e464efd9f76ad9b3b7694539e37ab8943df5b45467a926f83bb6258b883f70 [INFO] running `"docker" "start" "-a" "d9e464efd9f76ad9b3b7694539e37ab8943df5b45467a926f83bb6258b883f70"` [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling futures v0.1.26 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling tokio-trace-core v0.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.6.5 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling crossbeam-epoch v0.7.1 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.10.0 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling tokio-sync v0.1.5 [INFO] [stderr] Compiling tokio-executor v0.1.7 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-current-thread v0.1.6 [INFO] [stderr] Compiling tokio-timer v0.2.10 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling tokio-threadpool v0.1.14 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling tokio-fs v0.1.6 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio v0.1.19 [INFO] [stderr] Compiling tokio-examples v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.47s [INFO] running `"docker" "inspect" "d9e464efd9f76ad9b3b7694539e37ab8943df5b45467a926f83bb6258b883f70"` [INFO] running `"docker" "rm" "-f" "d9e464efd9f76ad9b3b7694539e37ab8943df5b45467a926f83bb6258b883f70"` [INFO] [stdout] d9e464efd9f76ad9b3b7694539e37ab8943df5b45467a926f83bb6258b883f70 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/alexxuyang/tokio-examples:/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" "test" "--frozen" "--no-run"` [INFO] [stdout] 3324b1ddcaadee0b923f82ba6d085fb3e9efa00609f97e49cb96c593ebdd5e56 [INFO] running `"docker" "start" "-a" "3324b1ddcaadee0b923f82ba6d085fb3e9efa00609f97e49cb96c593ebdd5e56"` [INFO] [stderr] Compiling tokio-examples v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> examples/select.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/timeout.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/stream.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/andthen2.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/map.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> examples/map.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> examples/map.rs:16:25 [INFO] [stderr] | [INFO] [stderr] 16 | Ok(Async::Ready((String::from("hello world!")))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/fold.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let mut dst = 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 import: `tokio::prelude` [INFO] [stderr] --> examples/andthen2.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `future` [INFO] [stderr] --> examples/writebuf.rs:6:23 [INFO] [stderr] | [INFO] [stderr] 6 | use futures::{Future, future}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> examples/peeraddr.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/peeraddr.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/writebuf.rs:34:25 [INFO] [stderr] | [INFO] [stderr] 34 | socket.write_buf(data); [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: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> examples/then.rs:9:37 [INFO] [stderr] | [INFO] [stderr] 9 | fn simple_func() -> Result> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/stream2.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::Future` [INFO] [stderr] --> examples/stream2.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use futures::Future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/tryready1.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> examples/tryready1.rs:16:25 [INFO] [stderr] | [INFO] [stderr] 16 | Ok(Async::Ready((String::from("hello world!")))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/tryready2.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> examples/tryready2.rs:17:25 [INFO] [stderr] | [INFO] [stderr] 17 | Ok(Async::Ready((String::from("hello world!")))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> examples/lazy2.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::timer::Delay` [INFO] [stderr] --> examples/lazy2.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::timer::Delay; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Duration`, `Instant` [INFO] [stderr] --> examples/lazy2.rs:9:17 [INFO] [stderr] | [INFO] [stderr] 9 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Add` [INFO] [stderr] --> examples/lazy2.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::ops::Add; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::Stream` [INFO] [stderr] --> examples/lazy2.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use futures::Stream; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/andthen3.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::prelude` [INFO] [stderr] --> examples/andthen3.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `socket` [INFO] [stderr] --> examples/andthen3.rs:22:21 [INFO] [stderr] | [INFO] [stderr] 22 | .and_then(|(socket, buf)| { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_socket` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::future` [INFO] [stderr] --> examples/delay.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use futures::future; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::prelude` [INFO] [stderr] --> examples/delay.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> examples/andthen1.rs:7:37 [INFO] [stderr] | [INFO] [stderr] 7 | fn simple_func() -> Result> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 23.80s [INFO] running `"docker" "inspect" "3324b1ddcaadee0b923f82ba6d085fb3e9efa00609f97e49cb96c593ebdd5e56"` [INFO] running `"docker" "rm" "-f" "3324b1ddcaadee0b923f82ba6d085fb3e9efa00609f97e49cb96c593ebdd5e56"` [INFO] [stdout] 3324b1ddcaadee0b923f82ba6d085fb3e9efa00609f97e49cb96c593ebdd5e56 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/alexxuyang/tokio-examples:/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" "test" "--frozen"` [INFO] [stdout] 5245524c3bad3be74d23733114dfedbcd5cbad5540d02f0f611f82d77e986480 [INFO] running `"docker" "start" "-a" "5245524c3bad3be74d23733114dfedbcd5cbad5540d02f0f611f82d77e986480"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.13s [INFO] [stderr] Running /opt/crater/target/debug/deps/tokio_examples-16389f981d0712c0 [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" "5245524c3bad3be74d23733114dfedbcd5cbad5540d02f0f611f82d77e986480"` [INFO] running `"docker" "rm" "-f" "5245524c3bad3be74d23733114dfedbcd5cbad5540d02f0f611f82d77e986480"` [INFO] [stdout] 5245524c3bad3be74d23733114dfedbcd5cbad5540d02f0f611f82d77e986480