[INFO] cloning repository https://github.com/kolemannix/hello_redis [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kolemannix/hello_redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolemannix%2Fhello_redis", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolemannix%2Fhello_redis'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6dc386b594d019b4b838ebc96483c0051bac7e80 [INFO] checking kolemannix/hello_redis against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolemannix%2Fhello_redis" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kolemannix/hello_redis on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kolemannix/hello_redis [INFO] finished tweaking git repo https://github.com/kolemannix/hello_redis [INFO] tweaked toml for git repo https://github.com/kolemannix/hello_redis written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/kolemannix/hello_redis already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] f573387737e64b098f549b0193d3c8800cd09171a4765c519150d67488685297 [INFO] running `Command { std: "docker" "start" "-a" "f573387737e64b098f549b0193d3c8800cd09171a4765c519150d67488685297", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f573387737e64b098f549b0193d3c8800cd09171a4765c519150d67488685297", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f573387737e64b098f549b0193d3c8800cd09171a4765c519150d67488685297", kill_on_drop: false }` [INFO] [stdout] f573387737e64b098f549b0193d3c8800cd09171a4765c519150d67488685297 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3bfdae913ff0a57a916134fd738b9e16f4ca2d62d523054a3b289c4a03286ca9 [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" "3bfdae913ff0a57a916134fd738b9e16f4ca2d62d523054a3b289c4a03286ca9", kill_on_drop: false }` [INFO] [stderr] Checking hello_redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::Read` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Borrowed` [INFO] [stdout] --> src/lib.rs:9:24 [INFO] [stdout] | [INFO] [stdout] 9 | use std::borrow::Cow::{Borrowed}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Read` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Borrowed` [INFO] [stdout] --> src/lib.rs:9:24 [INFO] [stdout] | [INFO] [stdout] 9 | use std::borrow::Cow::{Borrowed}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `await_response_integer` [INFO] [stdout] --> src/lib.rs:124:4 [INFO] [stdout] | [INFO] [stdout] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/lib.rs:146:5 [INFO] [stdout] | [INFO] [stdout] 146 | value: Vec [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_number` [INFO] [stdout] --> src/lib.rs:294:4 [INFO] [stdout] | [INFO] [stdout] 294 | fn write_number(writer: &mut T, num: u32) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `await_response_integer` [INFO] [stdout] --> src/lib.rs:124:4 [INFO] [stdout] | [INFO] [stdout] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/lib.rs:146:5 [INFO] [stdout] | [INFO] [stdout] 146 | value: Vec [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_number` [INFO] [stdout] --> src/lib.rs:294:4 [INFO] [stdout] | [INFO] [stdout] 294 | fn write_number(writer: &mut T, num: u32) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `Command { std: "docker" "inspect" "3bfdae913ff0a57a916134fd738b9e16f4ca2d62d523054a3b289c4a03286ca9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3bfdae913ff0a57a916134fd738b9e16f4ca2d62d523054a3b289c4a03286ca9", kill_on_drop: false }` [INFO] [stdout] 3bfdae913ff0a57a916134fd738b9e16f4ca2d62d523054a3b289c4a03286ca9