[INFO] cloning repository https://github.com/alexxuyang/tokio-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexxuyang/tokio-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexxuyang%2Ftokio-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexxuyang%2Ftokio-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 38774c6c9eea4dbdc17b6877adb17fa7278e3405 [INFO] testing alexxuyang/tokio-examples against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexxuyang%2Ftokio-examples" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alexxuyang/tokio-examples on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/alexxuyang/tokio-examples [INFO] finished tweaking git repo https://github.com/alexxuyang/tokio-examples [INFO] tweaked toml for git repo https://github.com/alexxuyang/tokio-examples written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/alexxuyang/tokio-examples already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: 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"start" "-a" "7b372399c91575bf4c3208ed12033857207d90470b95b84057d1565c37bb5758", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b372399c91575bf4c3208ed12033857207d90470b95b84057d1565c37bb5758", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b372399c91575bf4c3208ed12033857207d90470b95b84057d1565c37bb5758", kill_on_drop: false }` [INFO] [stdout] 7b372399c91575bf4c3208ed12033857207d90470b95b84057d1565c37bb5758 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] be97f87f794b72b891b76c8348ae3b01d49bef0ec23cbab1238f6ee1139fe9a2 [INFO] running `Command { std: "docker" "start" "-a" "be97f87f794b72b891b76c8348ae3b01d49bef0ec23cbab1238f6ee1139fe9a2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] 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[stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling rand_os v0.1.3 [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 mio v0.6.16 [INFO] [stderr] Compiling tokio-executor v0.1.7 [INFO] [stderr] Compiling tokio-sync v0.1.5 [INFO] [stderr] Compiling tokio-timer v0.2.10 [INFO] [stderr] Compiling tokio-current-thread v0.1.6 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-threadpool v0.1.14 [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-tcp v0.1.3 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio v0.1.19 [INFO] [stderr] Compiling tokio-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.59s [INFO] running `Command { std: "docker" "inspect" "be97f87f794b72b891b76c8348ae3b01d49bef0ec23cbab1238f6ee1139fe9a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be97f87f794b72b891b76c8348ae3b01d49bef0ec23cbab1238f6ee1139fe9a2", kill_on_drop: false }` [INFO] [stdout] be97f87f794b72b891b76c8348ae3b01d49bef0ec23cbab1238f6ee1139fe9a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ec6c9382edeee1a0b19a0766fc848b06da4c14509dd94a2f6fd1c75819ba606f [INFO] running `Command { std: "docker" "start" "-a" "ec6c9382edeee1a0b19a0766fc848b06da4c14509dd94a2f6fd1c75819ba606f", kill_on_drop: false }` [INFO] [stderr] Compiling tokio-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/stream2.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::Future` [INFO] [stdout] --> examples/stream2.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use futures::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/timeout.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/andthen2.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/then.rs:9:37 [INFO] [stdout] | [INFO] [stdout] 9 | fn simple_func() -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> examples/lazy2.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::timer::Delay` [INFO] [stdout] --> examples/lazy2.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio::timer::Delay; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration`, `Instant` [INFO] [stdout] --> examples/lazy2.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Add` [INFO] [stdout] --> examples/lazy2.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/fold.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut dst = vec![]; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::Stream` [INFO] [stdout] --> examples/lazy2.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use futures::Stream; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::prelude` [INFO] [stdout] --> examples/andthen2.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/map.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> examples/map.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> examples/map.rs:16:25 [INFO] [stdout] | [INFO] [stdout] 16 | Ok(Async::Ready((String::from("hello world!")))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> examples/peeraddr.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/peeraddr.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/tryready2.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> examples/tryready2.rs:17:25 [INFO] [stdout] | [INFO] [stdout] 17 | Ok(Async::Ready((String::from("hello world!")))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/andthen1.rs:7:37 [INFO] [stdout] | [INFO] [stdout] 7 | fn simple_func() -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/tryready1.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> examples/tryready1.rs:16:25 [INFO] [stdout] | [INFO] [stdout] 16 | Ok(Async::Ready((String::from("hello world!")))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/delay.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/stream.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> examples/select.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future` [INFO] [stdout] --> examples/andthen3.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use futures::future; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::prelude` [INFO] [stdout] --> examples/delay.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::prelude` [INFO] [stdout] --> examples/andthen3.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `socket` [INFO] [stdout] --> examples/andthen3.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | .and_then(|(socket, buf)| { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `future` [INFO] [stdout] --> examples/writebuf.rs:6:23 [INFO] [stdout] | [INFO] [stdout] 6 | use futures::{Future, future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/writebuf.rs:34:25 [INFO] [stdout] | [INFO] [stdout] 34 | socket.write_buf(data); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tokio-examples` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name joinall --edition=2018 examples/joinall.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=9833a475b7d45326 -C extra-filename=-9833a475b7d45326 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-2dadafcae357651f.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-c4d5da4fbc28cc94.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-ec92342a4b58eae1.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "ec6c9382edeee1a0b19a0766fc848b06da4c14509dd94a2f6fd1c75819ba606f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec6c9382edeee1a0b19a0766fc848b06da4c14509dd94a2f6fd1c75819ba606f", kill_on_drop: false }` [INFO] [stdout] ec6c9382edeee1a0b19a0766fc848b06da4c14509dd94a2f6fd1c75819ba606f