[INFO] cloning repository https://github.com/reedobrien/-tokio-echo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reedobrien/-tokio-echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedobrien%2F-tokio-echo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedobrien%2F-tokio-echo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 65e475970a460ece11e42295eab4a10891fbfa34 [INFO] testing reedobrien/-tokio-echo against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freedobrien%2F-tokio-echo" "/workspace/builds/worker-73/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/reedobrien/-tokio-echo on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/reedobrien/-tokio-echo [INFO] finished tweaking git repo https://github.com/reedobrien/-tokio-echo [INFO] tweaked toml for git repo https://github.com/reedobrien/-tokio-echo written to /workspace/builds/worker-73/source/Cargo.toml [INFO] crate git repo https://github.com/reedobrien/-tokio-echo already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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_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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0948b7cca43e0a32fe6139c74ecb5feca74bcd96b44f4f51358570c3e8031e26 [INFO] running `Command { std: "docker" "start" "-a" "0948b7cca43e0a32fe6139c74ecb5feca74bcd96b44f4f51358570c3e8031e26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0948b7cca43e0a32fe6139c74ecb5feca74bcd96b44f4f51358570c3e8031e26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0948b7cca43e0a32fe6139c74ecb5feca74bcd96b44f4f51358570c3e8031e26", kill_on_drop: false }` [INFO] [stdout] 0948b7cca43e0a32fe6139c74ecb5feca74bcd96b44f4f51358570c3e8031e26 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6013d56f3d29ef363e1738d41d3be24125ea1f18838ccb6d9f2302b4c2f0641b [INFO] running `Command { std: "docker" "start" "-a" "6013d56f3d29ef363e1738d41d3be24125ea1f18838ccb6d9f2302b4c2f0641b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.85 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling once_cell v1.5.2 [INFO] [stderr] Compiling pin-project-lite v0.2.4 [INFO] [stderr] Compiling bytes v1.0.1 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling tokio v1.2.0 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling parking_lot_core v0.8.2 [INFO] [stderr] Compiling mio v0.7.7 [INFO] [stderr] Compiling signal-hook-registry v1.3.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Compiling echo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let mut listener = TcpListener::bind("127.0.0.1:6142").await.unwrap(); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.47s [INFO] running `Command { std: "docker" "inspect" "6013d56f3d29ef363e1738d41d3be24125ea1f18838ccb6d9f2302b4c2f0641b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6013d56f3d29ef363e1738d41d3be24125ea1f18838ccb6d9f2302b4c2f0641b", kill_on_drop: false }` [INFO] [stdout] 6013d56f3d29ef363e1738d41d3be24125ea1f18838ccb6d9f2302b4c2f0641b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5256219fa6a5fb5bd21acf7a3359d155e60433b08d60615c13f694393bb07ab2 [INFO] running `Command { std: "docker" "start" "-a" "5256219fa6a5fb5bd21acf7a3359d155e60433b08d60615c13f694393bb07ab2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling echo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `write_task` [INFO] [stdout] --> examples/echo-client.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let write_task = tokio::spawn(async move { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_task` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let mut listener = TcpListener::bind("127.0.0.1:6142").await.unwrap(); [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: 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 9.84s [INFO] running `Command { std: "docker" "inspect" "5256219fa6a5fb5bd21acf7a3359d155e60433b08d60615c13f694393bb07ab2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5256219fa6a5fb5bd21acf7a3359d155e60433b08d60615c13f694393bb07ab2", kill_on_drop: false }` [INFO] [stdout] 5256219fa6a5fb5bd21acf7a3359d155e60433b08d60615c13f694393bb07ab2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 907cf141a6c2797df71753612b37080dcb03c474e92bc3a8df00a1ce3e76fb4f [INFO] running `Command { std: "docker" "start" "-a" "907cf141a6c2797df71753612b37080dcb03c474e92bc3a8df00a1ce3e76fb4f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused variable: `write_task` [INFO] [stderr] --> examples/echo-client.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let write_task = tokio::spawn(async move { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_write_task` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let mut listener = TcpListener::bind("127.0.0.1:6142").await.unwrap(); [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: `echo` (example "echo-client") generated 1 warning [INFO] [stderr] warning: `echo` (bin "echo" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.18s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/echo-70307887ccfe379e) [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] running `Command { std: "docker" "inspect" "907cf141a6c2797df71753612b37080dcb03c474e92bc3a8df00a1ce3e76fb4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "907cf141a6c2797df71753612b37080dcb03c474e92bc3a8df00a1ce3e76fb4f", kill_on_drop: false }` [INFO] [stdout] 907cf141a6c2797df71753612b37080dcb03c474e92bc3a8df00a1ce3e76fb4f