[INFO] cloning repository https://github.com/hnnazm/rust-socket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hnnazm/rust-socket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhnnazm%2Frust-socket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhnnazm%2Frust-socket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf3f085ff0fba7cc864c5714fbc4b8fa57ec8bfa
[INFO] testing hnnazm/rust-socket against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhnnazm%2Frust-socket" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hnnazm/rust-socket on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hnnazm/rust-socket
[INFO] finished tweaking git repo https://github.com/hnnazm/rust-socket
[INFO] tweaked toml for git repo https://github.com/hnnazm/rust-socket written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/hnnazm/rust-socket already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a24b9978f1843f66418558e460e851c82dc0d12ebec0a0c92285b2ec3a08979f
[INFO] running `Command { std: "docker" "start" "-a" "a24b9978f1843f66418558e460e851c82dc0d12ebec0a0c92285b2ec3a08979f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24b9978f1843f66418558e460e851c82dc0d12ebec0a0c92285b2ec3a08979f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24b9978f1843f66418558e460e851c82dc0d12ebec0a0c92285b2ec3a08979f", kill_on_drop: false }`
[INFO] [stdout] a24b9978f1843f66418558e460e851c82dc0d12ebec0a0c92285b2ec3a08979f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c095783a7cc542af0d35961f8192e0f6a7824ca094ebb1d7b5b34d1b1af294f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c095783a7cc542af0d35961f8192e0f6a7824ca094ebb1d7b5b34d1b1af294f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-socket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Bytes`
[INFO] [stdout]  --> src/server/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Bytes, Read, Write};
[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/server/main.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Ok(mut stream) => {
[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 imports: `Bytes`, `Read`
[INFO] [stdout]  --> src/client/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Bytes, Read, Write};
[INFO] [stdout]   |               ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "c095783a7cc542af0d35961f8192e0f6a7824ca094ebb1d7b5b34d1b1af294f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c095783a7cc542af0d35961f8192e0f6a7824ca094ebb1d7b5b34d1b1af294f8", kill_on_drop: false }`
[INFO] [stdout] c095783a7cc542af0d35961f8192e0f6a7824ca094ebb1d7b5b34d1b1af294f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa324053900e1307493fd43d68c39e5662461dd113b4859085d86ae2a84f3abf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa324053900e1307493fd43d68c39e5662461dd113b4859085d86ae2a84f3abf", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-socket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Bytes`
[INFO] [stdout]  --> src/server/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Bytes, Read, Write};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bytes`, `Read`
[INFO] [stdout]  --> src/client/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Bytes, Read, Write};
[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/server/main.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Ok(mut stream) => {
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "aa324053900e1307493fd43d68c39e5662461dd113b4859085d86ae2a84f3abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa324053900e1307493fd43d68c39e5662461dd113b4859085d86ae2a84f3abf", kill_on_drop: false }`
[INFO] [stdout] aa324053900e1307493fd43d68c39e5662461dd113b4859085d86ae2a84f3abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2fc8b038fce819b0241bb5e4a2b61348baf4b91fee43f185205be24e9161b564
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2fc8b038fce819b0241bb5e4a2b61348baf4b91fee43f185205be24e9161b564", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Bytes`, `Read`
[INFO] [stderr]  --> src/client/main.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Bytes, Read, Write};
[INFO] [stderr]   |               ^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-socket` (bin "client" test) generated 1 warning
[INFO] [stderr] warning: unused import: `Bytes`
[INFO] [stderr]  --> src/server/main.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Bytes, Read, Write};
[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/server/main.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(mut stream) => {
[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: `rust-socket` (bin "server" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/client-86c1ffcf79ec5578)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/server-3184d7884c2d0f4d)
[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" "2fc8b038fce819b0241bb5e4a2b61348baf4b91fee43f185205be24e9161b564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc8b038fce819b0241bb5e4a2b61348baf4b91fee43f185205be24e9161b564", kill_on_drop: false }`
[INFO] [stdout] 2fc8b038fce819b0241bb5e4a2b61348baf4b91fee43f185205be24e9161b564