[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] testing kolemannix/hello_redis against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolemannix%2Fhello_redis" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kolemannix/hello_redis on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-15/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df42ddeb46e6543e2fffe4cb229293a9032408a9ec7bb634ea95a45d0b57f632
[INFO] running `Command { std: "docker" "start" "-a" "df42ddeb46e6543e2fffe4cb229293a9032408a9ec7bb634ea95a45d0b57f632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df42ddeb46e6543e2fffe4cb229293a9032408a9ec7bb634ea95a45d0b57f632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df42ddeb46e6543e2fffe4cb229293a9032408a9ec7bb634ea95a45d0b57f632", kill_on_drop: false }`
[INFO] [stdout] df42ddeb46e6543e2fffe4cb229293a9032408a9ec7bb634ea95a45d0b57f632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd52d537427a72afb2d0f990fd653a70f1ed89d331db2e1c9c6fcd5a18b50db
[INFO] running `Command { std: "docker" "start" "-a" "4cd52d537427a72afb2d0f990fd653a70f1ed89d331db2e1c9c6fcd5a18b50db", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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<i64> {
[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<u8>
[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<T : Write>(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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "4cd52d537427a72afb2d0f990fd653a70f1ed89d331db2e1c9c6fcd5a18b50db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd52d537427a72afb2d0f990fd653a70f1ed89d331db2e1c9c6fcd5a18b50db", kill_on_drop: false }`
[INFO] [stdout] 4cd52d537427a72afb2d0f990fd653a70f1ed89d331db2e1c9c6fcd5a18b50db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96555fc803ab1edbc9227d69612fd532f398c43c0aab8ee525a59856f5910c55
[INFO] running `Command { std: "docker" "start" "-a" "96555fc803ab1edbc9227d69612fd532f398c43c0aab8ee525a59856f5910c55", kill_on_drop: false }`
[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] [stderr]    Compiling hello_redis v0.1.0 (/opt/rustwide/workdir)
[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<i64> {
[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<u8>
[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<T : Write>(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: 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<i64> {
[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<u8>
[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<T : Write>(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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "96555fc803ab1edbc9227d69612fd532f398c43c0aab8ee525a59856f5910c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96555fc803ab1edbc9227d69612fd532f398c43c0aab8ee525a59856f5910c55", kill_on_drop: false }`
[INFO] [stdout] 96555fc803ab1edbc9227d69612fd532f398c43c0aab8ee525a59856f5910c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fc7d8a35474c450373ef2fa029c90797093210ba9ef34b03fd94af4b0929430
[INFO] running `Command { std: "docker" "start" "-a" "1fc7d8a35474c450373ef2fa029c90797093210ba9ef34b03fd94af4b0929430", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stdout] test tests::set_test ... ok
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrowed`
[INFO] [stderr]  --> src/lib.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `await_response_integer`
[INFO] [stderr]    --> src/lib.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]    --> src/lib.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     value: Vec<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_number`
[INFO] [stderr]    --> src/lib.rs:294:4
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hello_redis` (lib) generated 5 warnings
[INFO] [stderr] warning: `hello_redis` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_redis-d48708b45c32c797)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_redis-dfc372cbade0e0dc)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests hello_redis
[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] [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" "1fc7d8a35474c450373ef2fa029c90797093210ba9ef34b03fd94af4b0929430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc7d8a35474c450373ef2fa029c90797093210ba9ef34b03fd94af4b0929430", kill_on_drop: false }`
[INFO] [stdout] 1fc7d8a35474c450373ef2fa029c90797093210ba9ef34b03fd94af4b0929430