[INFO] cloning repository https://github.com/imkrish7/tokio-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imkrish7/tokio-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkrish7%2Ftokio-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkrish7%2Ftokio-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64f310f5579fe8d1c20dec9edd58782ef68db70f
[INFO] building imkrish7/tokio-chat/64f310f5579fe8d1c20dec9edd58782ef68db70f against try#334963c956d25708feab489a3816ae63f639355d for pr-135216-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkrish7%2Ftokio-chat" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imkrish7/tokio-chat on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/imkrish7/tokio-chat
[INFO] finished tweaking git repo https://github.com/imkrish7/tokio-chat
[INFO] tweaked toml for git repo https://github.com/imkrish7/tokio-chat written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/imkrish7/tokio-chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fdd9ea4a023313c4fc9b6f783824c26e1da540bb94904c6046bb190999d0c46
[INFO] running `Command { std: "docker" "start" "-a" "6fdd9ea4a023313c4fc9b6f783824c26e1da540bb94904c6046bb190999d0c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fdd9ea4a023313c4fc9b6f783824c26e1da540bb94904c6046bb190999d0c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fdd9ea4a023313c4fc9b6f783824c26e1da540bb94904c6046bb190999d0c46", kill_on_drop: false }`
[INFO] [stdout] 6fdd9ea4a023313c4fc9b6f783824c26e1da540bb94904c6046bb190999d0c46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 087cfe2a4cb77e3684a6c0ac8f9fc8c7bf868445e608499dda0e7bcec9bd3bfd
[INFO] running `Command { std: "docker" "start" "-a" "087cfe2a4cb77e3684a6c0ac8f9fc8c7bf868445e608499dda0e7bcec9bd3bfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]  --> src/main.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader},
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.57s
[INFO] running `Command { std: "docker" "inspect" "087cfe2a4cb77e3684a6c0ac8f9fc8c7bf868445e608499dda0e7bcec9bd3bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087cfe2a4cb77e3684a6c0ac8f9fc8c7bf868445e608499dda0e7bcec9bd3bfd", kill_on_drop: false }`
[INFO] [stdout] 087cfe2a4cb77e3684a6c0ac8f9fc8c7bf868445e608499dda0e7bcec9bd3bfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 487f14236bf3fe8a218c450dccea97dac1e528a57aa072950e5e5f7e3c2c2242
[INFO] running `Command { std: "docker" "start" "-a" "487f14236bf3fe8a218c450dccea97dac1e528a57aa072950e5e5f7e3c2c2242", kill_on_drop: false }`
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]  --> src/main.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader},
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "487f14236bf3fe8a218c450dccea97dac1e528a57aa072950e5e5f7e3c2c2242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487f14236bf3fe8a218c450dccea97dac1e528a57aa072950e5e5f7e3c2c2242", kill_on_drop: false }`
[INFO] [stdout] 487f14236bf3fe8a218c450dccea97dac1e528a57aa072950e5e5f7e3c2c2242