[INFO] cloning repository https://github.com/kuadra/dumbo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kuadra/dumbo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuadra%2Fdumbo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuadra%2Fdumbo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05386a52d390a796b9e7f09d7f46ada9b0e879e5
[INFO] testing kuadra/dumbo against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuadra%2Fdumbo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kuadra/dumbo on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kuadra/dumbo
[INFO] finished tweaking git repo https://github.com/kuadra/dumbo
[INFO] tweaked toml for git repo https://github.com/kuadra/dumbo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kuadra/dumbo 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a82afdd4ab2c46bb7a1276d554ce858c652831033e5eb83b0aa6899e81db573
[INFO] running `Command { std: "docker" "start" "-a" "4a82afdd4ab2c46bb7a1276d554ce858c652831033e5eb83b0aa6899e81db573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a82afdd4ab2c46bb7a1276d554ce858c652831033e5eb83b0aa6899e81db573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a82afdd4ab2c46bb7a1276d554ce858c652831033e5eb83b0aa6899e81db573", kill_on_drop: false }`
[INFO] [stdout] 4a82afdd4ab2c46bb7a1276d554ce858c652831033e5eb83b0aa6899e81db573
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d372910daf93db0ad1910ddfb0d3c4476186d25edc52ad029076628630777e3
[INFO] running `Command { std: "docker" "start" "-a" "0d372910daf93db0ad1910ddfb0d3c4476186d25edc52ad029076628630777e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling quote v1.0.16
[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 dumbo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::AsyncReadExt`
[INFO] [stdout]  --> src/main.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::{net::{TcpListener, TcpStream}, io::AsyncReadExt};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/buffo.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn ppp(mut self) -> Buffo{
[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: method `ppp` is never used
[INFO] [stdout]  --> src/buffo.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Buffo {
[INFO] [stdout]   | ---------- method in this implementation
[INFO] [stdout] 6 |     pub fn ppp(mut self) -> Buffo{
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.79s
[INFO] running `Command { std: "docker" "inspect" "0d372910daf93db0ad1910ddfb0d3c4476186d25edc52ad029076628630777e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d372910daf93db0ad1910ddfb0d3c4476186d25edc52ad029076628630777e3", kill_on_drop: false }`
[INFO] [stdout] 0d372910daf93db0ad1910ddfb0d3c4476186d25edc52ad029076628630777e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3de9bdec846fb3028d4b862d73464a24e8778c041ed9b91f1d6d6f5370ef697a
[INFO] running `Command { std: "docker" "start" "-a" "3de9bdec846fb3028d4b862d73464a24e8778c041ed9b91f1d6d6f5370ef697a", kill_on_drop: false }`
[INFO] [stderr]    Compiling dumbo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::AsyncReadExt`
[INFO] [stdout]  --> src/main.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::{net::{TcpListener, TcpStream}, io::AsyncReadExt};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/buffo.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn ppp(mut self) -> Buffo{
[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: method `ppp` is never used
[INFO] [stdout]  --> src/buffo.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Buffo {
[INFO] [stdout]   | ---------- method in this implementation
[INFO] [stdout] 6 |     pub fn ppp(mut self) -> Buffo{
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "3de9bdec846fb3028d4b862d73464a24e8778c041ed9b91f1d6d6f5370ef697a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de9bdec846fb3028d4b862d73464a24e8778c041ed9b91f1d6d6f5370ef697a", kill_on_drop: false }`
[INFO] [stdout] 3de9bdec846fb3028d4b862d73464a24e8778c041ed9b91f1d6d6f5370ef697a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 41742cbec10aca505f82b218346de34ee9068a62576025b51924c55602a60677
[INFO] running `Command { std: "docker" "start" "-a" "41742cbec10aca505f82b218346de34ee9068a62576025b51924c55602a60677", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `io::AsyncReadExt`
[INFO] [stderr]  --> src/main.rs:3:44
[INFO] [stderr]   |
[INFO] [stderr] 3 | use tokio::{net::{TcpListener, TcpStream}, io::AsyncReadExt};
[INFO] [stderr]   |                                            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/buffo.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn ppp(mut self) -> Buffo{
[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: method `ppp` is never used
[INFO] [stderr]  --> src/buffo.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | impl Buffo {
[INFO] [stderr]   | ---------- method in this implementation
[INFO] [stderr] 6 |     pub fn ppp(mut self) -> Buffo{
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dumbo` (bin "dumbo" test) generated 3 warnings (run `cargo fix --bin "dumbo" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dumbo-1b4f26bb8ec85605)
[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" "41742cbec10aca505f82b218346de34ee9068a62576025b51924c55602a60677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41742cbec10aca505f82b218346de34ee9068a62576025b51924c55602a60677", kill_on_drop: false }`
[INFO] [stdout] 41742cbec10aca505f82b218346de34ee9068a62576025b51924c55602a60677
